1 Scope

NOTE This standard covers the furnishing and installation of factory-fabricated metal lockers, including the locker body and door, latching and locking hardware, finish, trim, interior equipment, benches furnished with the locker installation, and anchorage to the building structure. (1.1)

NOTE A metal locker is an assembly of formed sheet steel — a body of back, sides, top, and bottom; a door; and a door frame that carries the hinges and the strike — joined either with mechanical fasteners as a knocked-down (KD) assembly or by welding into a rigid factory-assembled unit, and finished with a baked coating over a phosphate pretreatment. (1.2)

NOTE The following are outside the scope of this standard: (1.3)

Lockers whose body and door are a non-metallic material, which are covered by Plastic LockersPlastic LockersResolves to the current edition.sync/plastic-lockers
Casework, cubbies, and open shelving units built as millwork, which are covered by Wood And Laminate CaseworkWood and Laminate CaseworkResolves to the current edition.sync/wood-and-laminate-casework
Wire-mesh storage partitions, tool cribs, and bulk shelving
Mail, parcel-delivery, evidence, and refrigerated locker systems furnished as packaged building systems
The security, access-control, and network head end that a networked electronic locker lock reports to, which is covered by Access Control SystemsAccess Control SystemsResolves to the current edition.sync/access-control-systems

NOTE The decision that drives cost, service life, and complaint volume in this standard is the match between construction method, component thickness, and the abuse the installation will actually see. (1.4)

NOTE Two lockers that look identical in an elevation can differ by a factor of three in sheet thickness and by an order of magnitude in resistance to prying, so the datasheet separates construction method, body thickness, door thickness, and frame thickness into independent selections rather than bundling them into a single duty grade. (1.5)

1.6 The number of lockers, the bank lengths, the location of each bank, and the location of the accessible lockers shall be as indicated on the locker plans and elevations.

1.7 The Contractor shall coordinate in-wall blocking and wall-anchorage backing with the wall trades under Gypsum Board AssembliesGypsum Board AssembliesResolves to the current edition.sync/gypsum-board-assemblies and Unit MasonryUnit MasonryResolves to the current edition.sync/unit-masonry before the walls are closed in.

2 Referenced Standards

2.1 Materials, fabrication, finish, hardware, and installation shall comply with the latest adopted edition of each of the following unless a specific edition is cited.

2.2 Where referenced standards conflict, the more stringent requirement shall govern unless the Engineer of Record directs otherwise in writing.

Standard	Title
ASTM A1008/A1008M	Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability
ASTM A1011/A1011M	Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy and Ultra-High Strength
ASTM A653/A653M	Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process
ASTM A240/A240M	Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
ASTM A153/A153M	Zinc Coating (Hot-Dip) on Iron and Steel Hardware
ASTM B117	Operating Salt Spray (Fog) Apparatus
ASTM D523	Specular Gloss
ASTM D714	Evaluating Degree of Blistering of Paints
ASTM D2794	Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)
ASTM D3359	Rating Adhesion by Tape Test
ASTM E84	Surface Burning Characteristics of Building Materials
AWS D1.3/D1.3M	Structural Welding Code — Sheet Steel
ANSI/BHMA A156.5	Cylinders and Input Devices for Locks
ANSI/BHMA A156.25	Electrified Locking Devices
ICC A117.1	Accessible and Usable Buildings and Facilities
2010 ADA Standards for Accessible Design	Americans with Disabilities Act Standards for Accessible Design (Sections 225 and 811, Storage)
ASCE/SEI 7	Minimum Design Loads and Associated Criteria for Buildings and Other Structures (Chapter 13, Nonstructural Components)

3 Submittals

3.1 Action Submittals

NOTE Action submittals are reviewed and returned before fabrication, and they are the last point at which an opening size, a lock function, or an accessible-locker location can be corrected without a change order. (3.1.1)

3.1.2 The Contractor shall submit the following for review and shall not release the lockers for fabrication until the submittals have been returned:

Product data for each locker type, giving the construction method, the sheet thickness of body, door, and frame, the ventilation type, the finish system, and the lock function
Dimensioned shop drawings showing plans and elevations of every bank, the tier arrangement, individual opening sizes, bank lengths, and overall dimensions
Shop drawing identification of each accessible locker, with the mounting height of its operable parts dimensioned above the finished floor
Trim, top, base, end-panel, filler-panel, and recess-trim locations, and the number-plate sequence
Anchorage details showing the connection of each bank to the floor, wall, or surrounding construction
Signed and sealed seismic anchorage calculations prepared in accordance with ASCE/SEI 7 where the seismic design category requires anchorage of nonstructural components
Finish color samples covering the full standard color line offered for the specified finish system
A sample locker door with the specified handle and lock installed, where a mock-up is requested
Finish test reports covering adhesion, salt-spray corrosion resistance, impact resistance, and gloss
Lock hardware data, including the ANSI/BHMA grade or test basis and, for electronic locks, the power source, override method, and credential type

Action Submittals Requiredcheckbox

☑ Product data for each locker type

☑ Dimensioned shop drawings with tier arrangement and opening sizes

☑ Accessible locker identification with operable-part heights dimensioned

☐ Trim, top, base, and number-plate layout

☑ Anchorage details to floor, wall, and surrounding construction

☐ Sealed seismic anchorage calculations per ASCE/SEI 7

☑ Finish color samples, full standard color line

☐ Sample locker door with specified handle and lock

☑ Finish test reports (D3359, B117, D2794, D523)

☐ Lock hardware data with grade, override, and credential type

3.1.3 Product data shall state the sheet thickness of the body, the door, and the door frame as a gauge number and as a decimal thickness in inches, so that the submitted product can be compared against the datasheet selection without reference to a manufacturer's gauge chart.

3.1.4 Shop drawings shall be prepared from field measurements taken at each locker location, not from the contract drawings alone.

3.1.5 Where the Contractor proposes a locker whose sheet thickness differs from the datasheet selection, the proposal shall be identified as a deviation on the transmittal and shall state the thickness offered for each component.

3.2 Closeout Submittals

NOTE Closeout submittals hand the Owner what is needed to open a locker whose user has forgotten a combination, to reorder a matching part, and to enforce the warranty. (3.2.1)

3.2.2 The Contractor shall deliver the following at substantial completion:

Care and maintenance instructions, including the cleaning agents that the finish warranty permits and those it excludes
The written manufacturer warranty for the lockers and for the locks
The written Contractor installation warranty
A control record for the installed locks, consisting of the keying schedule for key locks, the combination list for combination locks, and the programming and administrator credential record for electronic locks
A parts list identifying each door, shelf, hook, number plate, and lock by the manufacturer's order designation
An inventory of the attic stock furnished under this standard

Closeout Submittals Requiredcheckbox

☑ Care and maintenance instructions with permitted cleaning agents

☑ Written manufacturer warranty for lockers and locks

☑ Written Contractor installation warranty

☑ Lock control record (keying schedule, combination list, programming record)

☐ Parts list with order designations

☑ Attic stock inventory

3.2.3 The lock control record shall be transmitted directly to the Owner's designated representative and shall not be left in, on, or with the lockers.

3.2.4 The Contractor shall confirm in writing that the lock control record transmitted at closeout matches the locks as installed and adjusted, including any locks replaced during the correction period.

4 Quality Assurance

4.1 Manufacturer Qualifications

4.1.1 The locker manufacturer shall be a firm regularly engaged in the production of metal lockers of the construction method and lock type specified, with not less than five years of production under its current ownership.

4.1.2 The manufacturer shall furnish, on request, the location and date of not fewer than three installations of comparable size and service using the specified construction method.

4.2 Source Compatibility of Lockers, Trim, and Locks

NOTE Trim, fillers, sloped tops, and bases are formed to one manufacturer's locker module and frame profile, so a filler cut for one profile leaves a visible gap or a proud edge against another. (4.2.1)

NOTE Built-in locks are machined to the manufacturer's door and frame preparation, and a lock body that does not match the preparation will either not fit the cutout or will not engage the strike at full throw. (4.2.2)

4.2.3 The locker body, door, door frame, trim, and built-in locks within a single installation shall be furnished by a single manufacturer.

4.2.4 Where the Owner directs that locks be furnished separately from the lockers, the locker manufacturer shall furnish the doors factory-prepared for the designated lock, and the party furnishing the lock shall provide the preparation template before fabrication.

4.3 Field Dimension Verification

NOTE Bank lengths, recess depths, soffit heights, and the as-built position of walls and columns determine how many lockers fit, how wide the fillers must be, and whether recess trim is needed at all, and none of those are reliably known from the contract drawings. (4.3.1)

4.3.2 The Contractor shall verify field dimensions at each locker location before releasing the lockers for fabrication.

4.3.3 Where a field dimension differs from the contract drawings by more than the width of the smallest filler panel the manufacturer offers, the Contractor shall notify the Architect in writing before fabrication.

5 Moisture and Corrosion Exposure

NOTE Corrosion of a steel locker starts at a coating defect — a chipped edge, a drilled hole, a scratch from a hasp — and not on the intact painted face, so the substrate's own corrosion resistance governs how long the locker survives once the finish is broken. (5.1)

NOTE Where the locker is exposed to condensing humidity, chlorinated pool air, or wet garments that are stored daily, a zinc-coated substrate keeps corroding steel from undercutting the coating at each defect. (5.2)

NOTE Where the installation is washed down with a hose or a pressure washer, water enters the body seams and the base regardless of substrate, and a non-metallic locker per Plastic LockersPlastic LockersResolves to the current edition.sync/plastic-lockers avoids the exposure rather than resisting it. (5.3)

5.4 The service exposure at each locker location shall be as indicated in the datasheet, and the substrate and finish shall be selected to suit it.

Service Exposure at Locker Locationselect

Conditioned dry interior

Interior with intermittent elevated humidity

Athletic or team room with damp garments stored daily

Natatorium or chlorinated pool environment

Wash-down or hose-down cleaning

Unconditioned interior or exterior-adjacent

Industrial with airborne oils, solvents, or metallic dust

5.5 Where wash-down cleaning is indicated, the Contractor shall submit the manufacturer's written confirmation that the proposed locker is rated for that cleaning method, or shall propose a non-metallic locker for the Architect's consideration before fabrication.

6 Sheet Steel and Substrate Protection

6.1 Locker components shall be formed from prime steel sheet free of pits, scale, buckle, and coil-set marks in exposed surfaces.

6.2 Cold-rolled sheet shall conform to ASTM A1008/A1008M.

6.3 Hot-rolled sheet, where used for heavier structural members such as frames and legs, shall conform to ASTM A1011/A1011M.

6.4 Zinc-coated and zinc-iron alloy-coated (galvannealed) sheet shall conform to ASTM A653/A653M.

6.5 Stainless steel sheet shall conform to ASTM A240/A240M.

6.6 The sheet substrate shall be as indicated in the datasheet.

Sheet Steel Substrateselect

Cold-rolled carbon steel sheet, ASTM A1008

Galvannealed sheet steel, ASTM A653 A60 coating

Hot-dip galvanized sheet steel, ASTM A653 G90 coating

Stainless steel sheet, ASTM A240 Type 304

Stainless steel sheet, ASTM A240 Type 316

NOTE Galvannealed sheet accepts a powder-coat finish directly because its zinc-iron alloy surface is matte and paint-receptive, whereas a spangled hot-dip galvanized surface requires an additional pretreatment step for coating adhesion. (6.7)

NOTE Type 316 stainless resists chloride pitting better than Type 304, which is the difference that matters in a natatorium or a coastal installation. (6.8)

6.9 Where stainless steel sheet is specified, exposed surfaces shall be furnished with a uniform directional finish, and the direction of the polish lines shall be consistent across each bank.

6.10 Where a zinc-coated substrate is specified, cut edges and drilled holes shall be treated before finishing so that the exposed steel edge is not left bare beneath the coating.

7 Locker Construction

7.1 Construction Method

NOTE In a knocked-down locker the body panels ship flat and are drawn together in the field with mechanical fasteners, so every body seam is a joint that can loosen, and the assembly's squareness depends on the installer. (7.1.1)

NOTE In a welded locker the body is joined in the factory into a rigid unit, so there are no field-fastened body seams to loosen and the frame resists racking when the door is pulled or levered. (7.1.2)

NOTE Where lockers are unsupervised, subject to forced-entry attempts, or handled roughly enough that doors are kicked and levered, welded construction removes the body seams that a prying attack works on first. (7.1.3)

NOTE Where lockers must be delivered through a finished building with restricted access, knocked-down components pass through doors and elevators that an assembled welded bank cannot. (7.1.4)

7.1.5 The construction method shall be as indicated in the datasheet.

Locker Construction Methodradio

○ Knocked-down (KD), field-assembled with mechanical fasteners

○ Welded, factory-assembled into rigid units

7.1.6 Knocked-down body seams shall be flanged so that the fastened joint develops a double thickness of metal at corners and along the full length of each seam.

7.1.7 Welded assemblies shall be welded in accordance with AWS D1.3/D1.3M, and welds on exposed surfaces shall be ground flush before finishing.

7.1.8 Fasteners used in knocked-down assembly shall be furnished by the locker manufacturer and shall not be substituted with generic sheet-metal screws.

7.2 Component Sheet Thickness

NOTE Sheet thickness is expressed as a gauge number in which a lower number is a thicker sheet, so a 14-gauge door is heavier than a 16-gauge door. (7.2.1)

NOTE The door and the door frame take the direct load in service — the frame carries the hinges and the strike, and the door absorbs every impact — so both are conventionally thicker than the body panels they are mounted to. (7.2.2)

NOTE Where a locker is opened and closed many times each day, frame thickness governs how long the hinge and strike geometry survives, because a light frame deflects at the strike and the door begins to catch. (7.2.3)

NOTE Where a locker is loaded with heavy gear or used as a step, the bottom and shelf thickness governs whether the pan deforms, independent of the door and frame selection. (7.2.4)

7.2.5 The body sheet thickness shall be as indicated in the datasheet.

Locker Body Sheet Thicknessselect

24 gauge

22 gauge

20 gauge

18 gauge

16 gauge

14 gauge

7.2.6 The door sheet thickness shall be as indicated in the datasheet.

Locker Door Sheet Thicknessselect

18 gauge

16 gauge

14 gauge

12 gauge

7.2.7 The door frame sheet thickness shall be as indicated in the datasheet.

Door Frame Sheet Thicknessselect

18 gauge

16 gauge

14 gauge

12 gauge

7.2.8 The shelf and bottom sheet thickness shall be as indicated in the datasheet.

Shelf and Bottom Sheet Thicknessselect

24 gauge

22 gauge

20 gauge

18 gauge

16 gauge

7.2.9 The door frame vertical members shall be formed to provide a continuous integral door strike for the full height of the opening.

7.2.10 Doors shall be formed with a continuous channel or box section at the lock edge so that the lock stile resists twisting when the door is levered.

8 Locker Configuration

8.1 Tier Arrangement

NOTE The tier arrangement is the number of separately locking openings stacked within one locker frame height, and it trades opening height against the number of users a given run of wall serves. (8.1.1)

NOTE The tier arrangements in general production are: (8.1.2)

Single tier, one full-height opening per frame, tall enough to hang a coat on a rod or hook
Double tier, two openings each about half the frame height
Triple tier, three openings sized for gym clothes, books, and personal effects
Box tier, four, five, or six compact openings per frame for personal items and day use
Z-tier, two interlocking Z-shaped openings per width, each with partial hanging height at about half the floor area of a single tier
Duplex or two-person, a single-tier frame divided vertically into two narrow full-height openings

NOTE Where garments must hang full length without folding, only a single tier or a Z-tier provides the clear height, and the choice between them is floor area against convenience. (8.1.3)

8.1.4 The tier arrangement shall be as indicated in the datasheet.

Tier Arrangementselect

Single tier

Double tier

Triple tier

Four-tier box

Five-tier box

Six-tier box

Z-tier

Duplex (two-person single tier)

Per drawings — as indicated on the locker elevations (deferred by default)

8.1.5 Where more than one tier arrangement occurs in a single bank, each arrangement shall be identified separately on the shop drawings with its opening count and dimensions.

8.2 Opening and Frame Dimensions

NOTE Opening dimensions are set by what is stored and by the floor area available, and both are project facts rather than product norms, so these fields carry no assumed value. (8.2.1)

8.2.2 The nominal opening width shall be as indicated in the datasheet.

Nominal Opening Widthrange

in

9121518243036

Per drawings — as indicated on the locker elevations (deferred by default)

8.2.3 The nominal locker depth shall be as indicated in the datasheet.

Nominal Locker Depthrange

in

91215182124

Per drawings — as indicated on the locker plans (deferred by default)

8.2.4 The nominal frame height, excluding the base, shall be as indicated in the datasheet.

Nominal Frame Height Excluding Baserange

in

36424860667278

Per drawings — as indicated on the locker elevations (deferred by default)

8.2.5 The overall installed height of each bank, measured from the finished floor to the top of the sloped top or flat top, shall be shown on the shop drawings and shall be confirmed against the soffit or ceiling height at each location.

8.2.6 Where lockers are installed beneath a soffit or a bulkhead, the Contractor shall verify that the frame height plus the base height plus the top assembly clears the soffit before fabrication.

8.3 Door Ventilation

NOTE Ventilation openings let stored moisture evaporate instead of condensing inside a closed steel box, and the amount of open area — not the presence of any opening at all — is what determines whether damp gear dries between uses. (8.3.1)

NOTE Ventilation types run from a solid door with no open area, through louvers punched in the door face, to perforated and expanded-mesh doors whose open area is a large fraction of the door. (8.3.2)

NOTE Where doors are non-ventilated, stored damp garments and footwear hold moisture against the door and body, and both odor and finish corrosion follow. (8.3.3)

NOTE Where visual privacy of the contents matters, louvers obscure the interior while a perforated or mesh door does not, and where staff must see into a locker without opening it, that relationship reverses. (8.3.4)

NOTE Where ventilation open area increases, the door loses stiffness and the material removed reduces resistance to a pry attack, so a heavier door gauge is often selected alongside a high-open-area door. (8.3.5)

8.3.6 The door ventilation type shall be as indicated in the datasheet.

Door Ventilation Typeselect

Solid door, no ventilation openings

Louvered door

Louvered door and louvered sides

Rectangular-perforated door

Diamond-perforated door

Diamond-perforated door and sides

Expanded metal mesh door

Expanded metal mesh door, sides, and back

8.3.7 Where a ventilated body is specified, the ventilation openings in the body shall not be blocked by an adjoining locker back, a wall, or a filler panel.

9 Latching and Hinges

9.1 Handle Type

NOTE The handle is the part a user touches, and it also decides where the lock lives: a recessed handle houses the lock inside a formed pocket so the lock body cannot be struck directly, while a surface handle leaves the lock exposed on the door face. (9.1.1)

NOTE Where lockers line a circulation route, a surface handle projects into the path and catches clothing, bags, and passing traffic. (9.1.2)

9.1.3 The handle type shall be as indicated in the datasheet.

Handle Typeselect

Recessed handle with lock housed in the handle pocket

Recessed finger pull with padlock hasp

Surface-mounted lift handle

Surface-mounted turn handle

Flush pull with no projecting handle

9.1.4 Handles shall be attached to the door with concealed fasteners or with tamper-resistant fasteners accessible from the door interior.

9.2 Latching

NOTE A single-point latch holds the door at one place, so a lever applied at the far corner of the door works against one engagement; a multi-point latch spreads the same lever across engagements at the top, middle, and bottom of the frame. (9.2.1)

NOTE Where doors are tall and lightly gauged, multi-point latching also holds the free edge of the door in plane, which keeps the door from bowing away from the frame under load. (9.2.2)

9.2.3 The number of latch engagement points shall be as indicated in the datasheet.

Door Latch Engagement Pointsrange

points

123

9.2.4 Latches shall operate without the user lifting, holding, or supporting the door.

9.2.5 Latch components exposed inside the locker shall not project into the usable storage volume.

9.2.6 Where a positive latch is specified for a ventilated door, the latch shall engage the frame independently of the ventilation openings so that the open area does not become the point of attack.

9.3 Hinges

NOTE Hinge count and attachment carry the entire door weight through every cycle, and a hinge that pulls out of a light door edge is the most common single-component failure in a heavily used bank. (9.3.1)

9.3.2 The hinge type and count shall be as indicated in the datasheet.

Door Hinge Typeselect

Full-height continuous piano hinge

Two five-knuckle butt hinges

Three five-knuckle butt hinges

Concealed pin hinge

9.3.3 Hinges shall be attached to the door and to the frame with welds or with fasteners that cannot be removed from outside the closed and locked locker.

9.3.4 Doors shall swing freely through their full arc without binding on the frame, the adjoining door, or the trim.

10 Locking and Access Control

10.1 Locking Method

NOTE The locking method sets who holds the means of opening the locker and who bears the administrative burden when that means is lost. (10.1.1)

NOTE Where users supply their own padlocks, the Owner carries no key or combination administration but also has no reliable means of opening a locker whose user has left. (10.1.2)

NOTE Where built-in combination locks are used, the Owner holds a control key or control chart and can open any locker, at the cost of maintaining that record for the life of the installation. (10.1.3)

NOTE Where electronic locks are used, a user can set a code per use without any Owner action, and the Owner's burden shifts from keys and combinations to batteries, firmware, and credential management. (10.1.4)

10.1.5 The locking method shall be as indicated in the datasheet.

Locking Methodselect

Recessed padlock hasp for a user-supplied padlock

Padlock lug or eye for a user-supplied padlock

Built-in combination lock with an assigned fixed combination

Built-in resettable combination lock for shared or day use

Built-in key cam lock

Built-in combination lock with key override

Electronic keypad lock

Electronic credential lock reading a card or fob

Locker factory-prepared for an Owner-furnished lock

10.1.6 Mechanical lock cylinders and input devices shall comply with ANSI/BHMA A156.5.

10.1.7 Electrified locking devices shall comply with ANSI/BHMA A156.25.

10.1.8 Where a padlock hasp or lug is specified, the hasp shall be recessed or shielded so that the padlock shackle cannot be reached by a bolt cutter positioned square to the shackle.

10.1.9 Where the lockers are factory-prepared for an Owner-furnished lock, the preparation dimensions shall be confirmed against the Owner's lock before the doors are fabricated, and the Contractor shall not close the submittal on a generic preparation.

10.2 Keying and Lock Control

NOTE A keying arrangement decides how many locks one key opens, which is a security decision and an operations decision at the same time. (10.2.1)

10.2.2 The keying arrangement shall be as indicated in the datasheet.

Lock Keying Arrangementselect

Keyed different, one key per locker

Keyed alike within each control group

Master-keyed with a single Owner master

Grand-master-keyed across control groups

Combination controlled, no keying

Not applicable, user-supplied lock

10.2.3 Where key locks are specified, two keys shall be furnished for each locker and two control or master keys shall be furnished for each control group.

10.2.4 Where combination locks are specified, no two lockers within one control group shall be furnished with the same combination.

10.2.5 The Contractor shall not disclose the combination list, the master keying schedule, or the administrator credential to any party other than the Owner's designated representative.

10.3 Electronic Locks

NOTE An electronic lock that cannot be opened when its power source fails converts a routine lockout into a destructive entry, so the override path is the part of the selection that matters most. (10.3.1)

NOTE Where an electronic lock is networked, it becomes part of the building's access-control system and inherits that system's commissioning, credential, and cybersecurity requirements under Access Control SystemsAccess Control SystemsResolves to the current edition.sync/access-control-systems. (10.3.2)

10.3.3 The electronic lock power source shall be as indicated in the datasheet.

Electronic Lock Power Sourceradio

○ Self-contained battery within each lock

○ Hard-wired low-voltage power to each bank

● Not applicable, no electronic locks

10.3.4 Where electronic locks are specified, each lock shall be furnished with a mechanical key override or a portable programming override that opens the lock without power.

10.3.5 Where electronic locks are battery-powered, the Contractor shall submit the battery type and the manufacturer's stated service interval, and shall furnish one complete set of replacement batteries at substantial completion.

10.3.6 Where electronic locks are hard-wired, the Contractor shall coordinate the power rough-in location, the conduit path, and the transformer or power supply location with the electrical trade before fabrication.

10.3.7 Where electronic locks are networked, the Contractor shall change every factory default password and administrator credential before substantial completion and shall record the change in the lock control record.

11 Finish

11.1 Pretreatment and Coating System

NOTE Powder coat applied over unphosphatized steel bonds to mill scale and rolling oils rather than to the steel, and the finish then lifts in sheets at the first impact or scratch rather than chipping locally. (11.1.1)

NOTE A multi-stage pretreatment — clean, rinse, phosphate conversion, rinse, seal — converts the steel surface itself into a crystalline layer the coating can key into, which is why the pretreatment line and not the powder is what separates a durable locker finish from a poor one. (11.1.2)

11.1.3 Locker components shall be cleaned, phosphatized, rinsed, and sealed before the finish coat is applied.

11.1.4 The finish system shall be as indicated in the datasheet.

Finish Systemradio

● Baked thermoset powder-coat enamel over phosphate pretreatment

○ Baked liquid enamel over phosphate pretreatment

○ No applied coating, stainless or zinc-coated substrate exposed

11.1.5 Components shall be formed, punched, welded, and drilled before the finish is applied, so that cut edges, formed radii, and hole edges receive coating.

11.1.6 Where a component must be cut, drilled, or welded after finishing, the disturbed area shall be cleaned and touched up with the manufacturer's matching coating before the locker is placed in service.

11.1.7 Non-metallic locker components exposed to the room, including trim, bench tops, and door inserts, shall have a flame spread index and smoke developed index meeting the interior finish class required by the adopted building code when tested in accordance with ASTM E84.

11.2 Color

NOTE Color availability is a catalog fact rather than a project requirement, and the practical selection question is whether the project takes a single color, contrasts doors against bodies, or pays for a match to a color outside the offered line. (11.2.1)

11.2.2 The finish color scheme shall be as indicated in the datasheet.

Finish Color Schemeradio

● Single color throughout

○ Two-tone, bodies one color and doors another

○ Multiple colors distributed across banks or tiers

○ Custom color matched to a submitted sample

11.2.3 Colors shall be selected by the Architect from the full standard color line offered for the specified finish system, unless a custom color match is indicated in the datasheet.

11.2.4 Where a custom color match is indicated, the Contractor shall submit a drawdown or a coated sample panel for approval and shall state the added lead time on the transmittal before fabrication is released.

11.2.5 Where multiple colors are used, the shop drawings shall identify the color of every body and every door by bank and by opening.

11.3 Finish Performance

NOTE The gloss level of a locker finish is a maintenance decision as much as an aesthetic one, because a high-gloss surface returns a sharper reflection and therefore shows shallow scratches, fingerprints, and cleaning swirl that a matte surface diffuses. (11.3.1)

11.3.2 The finish gloss level shall be as indicated in the datasheet.

Finish Gloss Level, ASTM D523 at 60°select

Matte or low gloss

Satin or medium gloss

Semi-gloss

High gloss

Textured or hammertone

11.3.3 Finish adhesion shall be not less than rating 4B when tested in accordance with ASTM D3359, Test Method B.

11.3.4 Finish impact resistance shall show no cracking and no loss of adhesion at 80 in-lbf direct impact when tested in accordance with ASTM D2794.

11.3.5 The minimum salt-spray exposure the finish shall withstand shall be as indicated in the datasheet.

Minimum Salt-Spray Exposure, ASTM B117range

h

962505007501000

11.3.6 At the conclusion of the specified salt-spray exposure, the coating shall show no blistering greater than Few, Size 8 when rated in accordance with ASTM D714, and no undercutting at the scribe greater than 1/16 in. on either side.

11.3.7 Where the finish test reports submitted do not cover the specified exposure duration, the Contractor shall arrange testing of the proposed finish at the Contractor's cost and shall submit the results before fabrication.

12 Tops, Bases, and Closure Trim

12.1 Tops

NOTE A flat locker top in a corridor becomes an informal shelf and a dust ledge that nobody can reach to clean, and once objects are stored there the tops also become a fall hazard when retrieved. (12.1.1)

NOTE A sloped top removes the horizontal surface, and the same assembly is what conceals the joint between the locker top and any soffit above. (12.1.2)

NOTE Where lockers stand in a low-dust, supervised space and the top of the bank is deliberately used for display or storage, a flat top is the usable surface and a sloped top removes it. (12.1.3)

12.1.4 The locker top treatment shall be as indicated in the datasheet.

Locker Top Treatmentradio

○ Continuous sloped top

○ Flat top

○ Flat top with a separate closure panel to the soffit above

12.1.5 Where sloped tops are specified, end closures shall be furnished at each exposed end of the run and splice covers shall be furnished at each joint between sloped-top sections.

12.1.6 Sloped tops shall be furnished in continuous lengths matching the bank, with joints occurring only at the ends of a manufactured section.

12.2 Base Condition

NOTE A base raises the locker body off the floor so that mopping, floor scrubbing, and standing water do not sit against the bottom pan and the body seam. (12.2.1)

NOTE A channel or Z base creates a recessed toe space, which lets a user stand closer to the opening and lets a floor machine run to the face of the run without striking the locker. (12.2.2)

NOTE A closed base conceals the legs and the underside, which removes the space where debris collects and where a small item can be pushed out of reach. (12.2.3)

NOTE Where the run is set on a raised concrete curb or an integral base built by another trade, the locker base is redundant and the lockers set directly on the curb. (12.2.4)

12.2.5 The locker base condition shall be as indicated in the datasheet.

Locker Base Conditionselect

Closed base at front and ends over legs, 4 in. high

Closed base at front and ends over legs, 6 in. high

Channel or Z base, 4 in. high

Channel or Z base, 6 in. high

Exposed legs with no base trim

No base, lockers set directly on the finished floor

No base, lockers set on a curb or platform by another trade

Per drawings — as indicated on the locker elevations

12.2.6 The base condition shall be coordinated with the finished flooring and the wall base trim so that the flooring is installed to, under, or around the base as the flooring standard requires.

12.2.7 Where lockers are set directly on the finished floor, the bottom edge of the body shall be sealed to the floor with a sealant compatible with both the floor finish and the locker coating.

12.3 End Panels, Fillers, and Recess Trim

NOTE Trim is what makes a run of lockers read as built-in rather than as furniture pushed against a wall, and it also closes the gaps in which debris collects and behind which small items disappear. (12.3.1)

NOTE Filler and trim quantities cannot be finalized from the contract drawings, because the gap between the last locker and the wall is a field dimension. (12.3.2)

12.3.3 The closure trim furnished shall be as indicated in the datasheet.

Closure Trim Furnishedcheckbox

☑ Finished end panels at exposed locker ends

☐ Finished back panels at exposed locker backs

☑ Filler panels at walls, columns, and obstructions

☐ Recess trim at banks recessed into a wall or soffit

☐ Continuous base trim at exposed ends

☐ Boxed-end trim at the end of a back-to-back run

12.3.4 End panels, filler panels, and recess trim shall be formed from sheet of the same substrate and finish as the locker bodies they adjoin.

12.3.5 Filler panels shall be field-cut to the measured gap and shall be attached with concealed or tamper-resistant fasteners.

12.3.6 The Contractor shall confirm filler and trim quantities against field dimensions before fabrication and shall report any additional trim required to the Architect in writing.

13 Interior Equipment and Identification

NOTE What goes inside the locker is set by what is stored: a coat needs a hook or a rod at full height, gym shoes need a raised shelf that keeps them off a wet bottom pan, and a phone or a wallet needs a shelf within sight. (13.1)

13.2 The interior equipment furnished shall be as indicated in the datasheet.

Interior Equipment Furnishedcheckbox

☑ Single-prong wall hooks

☑ Double-prong ceiling hooks

☐ Full-width coat rod

☑ Top shelf

☐ Bottom or footwear shelf

☐ Intermediate adjustable shelf

☐ Mirror mounted to the door interior

☐ Partition or divider within the opening

☐ Purse or valuables shelf

13.3 Hooks shall be attached to the locker body with fasteners engaging a reinforced or doubled thickness of metal, and shall not be attached through a single thickness of body sheet alone.

13.4 Shelves shall be formed with turned edges on all exposed sides.

13.5 The locker identification method shall be as indicated in the datasheet.

Locker Identificationradio

● Riveted metal number plates

○ Applied vinyl or decal numbers

○ Engraved or etched numbers in the door

○ No locker identification

13.6 Number plates shall be applied at the same location on every door within an installation.

13.7 The numbering sequence shall be established by the Owner's locker-assignment scheme, and the Contractor shall obtain that sequence in writing before the number plates are ordered.

14 Locker Room Benches

NOTE Benches furnished with a locker installation are set out from the locker face far enough to leave a circulation aisle, which makes their spacing a layout decision rather than a product decision. (14.1)

NOTE Where a bench is fixed to the floor on pedestals it cannot be moved to block an accessible route or a door swing, and where it is freestanding it can be relocated by the Owner but also displaced into a clearance. (14.2)

14.3 The bench type furnished under this standard shall be as indicated in the datasheet.

Locker Room Bench Typeradio

○ Fixed benches on floor-anchored pedestals

○ Freestanding portable benches

○ Benches not furnished under this standard

14.4 The bench top material shall be as indicated in the datasheet.

Bench Top Materialselect

Laminated hardwood

Solid plastic, HDPE

Phenolic composite

Powder-coated steel

Not applicable, benches not furnished

14.5 Bench lengths, locations, and the clear aisle dimension between the bench and the locker face shall be as indicated on the locker plans.

14.6 Bench pedestals shall be anchored to the structural floor slab and shall not rely on the finished flooring for attachment.

14.7 Exposed bench top edges and corners shall be eased, and fasteners shall be countersunk flush or concealed.

15 Accessible Lockers

15.1 Quantity and Distribution

NOTE Where lockers are provided, the 2010 ADA Standards Section 225.2.1 and ICC A117.1 require that at least 5 percent, and no fewer than one, of each type of locker comply with the storage provisions of Section 811. (15.1.1)

15.1.3 Accessible lockers shall be provided in accordance with the adopted accessibility standard.

15.1.4 The percentage of each locker type provided as accessible shall be as indicated in the datasheet.

Accessible Lockers Provided per Locker Typerange

%

5100

Default: 5 %

15.1.5 Not fewer than one locker of each type shall be accessible, regardless of the percentage calculated for that type.

15.1.6 Accessible lockers shall be distributed among the locker types and locations rather than grouped into a single bank, unless the drawings indicate a specific grouped location.

15.1.7 The location and identification of each accessible locker shall be as indicated on the locker plans.

15.2 Reach Range and Operable Parts

NOTE The defining requirement for an accessible locker is that both the usable storage and every part the user must operate fall within an unobstructed reach range, which in practice places accessible lockers in a single tier or in the lower tier of a multi-tier bank. (15.2.1)

NOTE Where a locker's operable parts sit within the reach range but the clear floor space in front of it is taken by a bench, an open door swing, or a projecting trim piece, the locker does not comply even though the locker itself is correct. (15.2.2)

15.2.3 The usable storage in an accessible locker shall be within an unobstructed forward or side reach range of 15 in. minimum to 48 in. maximum above the finished floor.

15.2.4 Every operable part of an accessible locker, including the handle, the latch, the lock, and any keypad or reader, shall be located within 15 in. minimum to 48 in. maximum above the finished floor.

15.2.5 Every operable part of an accessible locker shall be operable with one hand, without tight grasping, pinching, or twisting of the wrist, and with an operating force of not more than 5 lbf.

15.2.6 A clear floor space complying with the adopted accessibility standard shall be provided at each accessible locker, and shall be connected to an accessible route.

15.2.7 The Contractor shall verify at each accessible locker, after installation and adjustment, that the operable parts fall within the reach range and that the clear floor space is unobstructed.

15.2.8 The lock furnished on accessible lockers shall be as indicated in the datasheet.

Accessible Locker Lockselect

Same lock as the typical locker

Built-in combination lock with an oversized dial

Push-button combination lock

Electronic keypad lock

Electronic credential lock reading a card or fob

Lever-operated cam lock

15.2.9 Where the lock selected for the typical lockers requires pinching, tight grasping, or twisting of the wrist to operate, a different lock meeting the operable-parts requirements shall be furnished on the accessible lockers.

15.3 Accessible Benches

15.3.1 Where benches are provided in a locker room, at least one bench shall comply with the bench provisions of the adopted accessibility standard for seat height, seat depth, back support, and clear floor space.

15.3.2 The accessible bench and its clear floor space shall be located so that the clearance is not reduced by a locker bank, an open locker door, or a fixed pedestal.

16 Fabrication

16.1 Lockers shall be fabricated to the dimensions and configuration shown on the shop drawings returned for fabrication.

16.2 Sheared, formed, and punched edges within reach of a user, including louver, perforation, and mesh edges, shall be free of burrs and sharp edges.

16.3 Body panels, doors, and frames shall be formed square so that an assembled bank stands plumb without racking the frames into alignment.

16.4 Doors shall be fabricated so that the gap between the door edge and the frame is uniform along the full height of the opening.

16.5 Locker components shall be identified by the manufacturer with a mark that ties each component to its location on the shop drawings, and the mark shall be concealed after assembly.

17 Delivery, Storage, and Handling

NOTE A locker damaged before installation cannot be repaired to match, because the baked finish cannot be reproduced in the field, so handling damage becomes a replacement and a schedule delay rather than a touch-up. (17.1)

17.2 Lockers shall be delivered in the manufacturer's packaging, with protective wrapping on finished surfaces intact.

17.3 Lockers shall be stored inside a weathertight, conditioned space, off the floor, and shall not be stored where condensation forms on the packaging.

17.4 Lockers shall not be delivered to the site until the space that receives them is enclosed, the wet trades are complete, and the space is at the temperature and humidity at which it will be occupied.

17.5 Damaged components shall be replaced rather than field-repaired, except that minor coating damage not visible in the installed position may be touched up with the manufacturer's matching coating.

17.6 The Contractor shall bear the cost of replacing components damaged in delivery, storage, or handling.

18 Installation

18.1 Blocking and Substrate Preparation

NOTE Lockers anchored to gypsum board without solid blocking pull out under normal use, and the failure appears months after acceptance when the fastener finally works through the board face. (18.1.1)

18.1.2 The Contractor shall verify, before installation begins, that solid in-wall blocking has been installed at every location where a locker, a trim piece, or a bench anchors to a wall.

18.1.3 Where blocking is missing or mislocated, the Contractor shall notify the Architect in writing before proceeding and shall not proceed with wall anchorage at that location.

18.1.4 Lockers, trim, and benches shall not be anchored to gypsum board alone.

18.1.5 The floor at each locker location shall be verified level within the tolerance the manufacturer requires for the base condition specified, and shall be shimmed rather than ground where it is out of tolerance.

18.2 Setting and Anchorage

18.2.1 The anchorage condition shall be as indicated in the datasheet.

Anchorage Conditionselect

Floor-anchored with backs anchored to the wall

Floor-anchored with tops anchored to the wall

Back-to-back freestanding, floor-anchored

Island run, floor-anchored and braced at both ends

Recessed into a wall opening, anchored to the surrounding construction

Per drawings — as indicated on the locker plans and elevations (deferred by default)

18.2.2 Lockers shall be set level and plumb, shimmed as required at the base, and shall not be forced into alignment by tightening the bank fasteners.

18.2.3 Adjoining lockers shall be bolted together into continuous runs before the run is anchored to the structure.

18.2.4 Anchors shall be selected for the substrate they engage, using expansion or screw anchors in concrete, anchors rated for the unit in masonry, and through-bolts or lag screws into solid blocking in stud walls.

18.2.5 Anchorage hardware installed in a natatorium, a wash-down area, or an exterior-adjacent location shall be stainless steel or shall be hot-dip galvanized in accordance with ASTM A153/A153M.

18.2.6 Every locker bank shall be anchored so that it cannot tip when a fully extended door is loaded or a user leans on an open door.

18.2.7 Anchorage shall not be made through the finished flooring in a manner that breaches a waterproof membrane, and where a membrane is present the anchorage method shall be coordinated with the waterproofing trade before installation.

18.3 Seismic Restraint

NOTE A tall locker bank is a nonstructural component whose overturning is governed by its height, weight, and the seismic design category of the project rather than by anything about the locker product itself. (18.3.1)

18.3.2 The component importance factor used to design the locker anchorage shall be as indicated in the datasheet.

Component Importance Factor, ASCE/SEI 7range

11.5

18.3.3 Where the seismic design category of the project requires anchorage of nonstructural components, locker banks shall be anchored to resist the seismic design forces determined in accordance with ASCE/SEI 7, Chapter 13.

18.3.4 Seismic anchorage shall be installed in accordance with calculations and details signed and sealed by an engineer licensed in the jurisdiction of the project.

18.3.5 Sheet-metal screws driven into unbraced steel studs shall not be accepted as satisfying a seismic anchorage requirement.

18.3.6 Where the Contractor and the Architect disagree whether a given bank falls within the seismic anchorage requirement, the Structural Engineer of Record shall make the initial determination.

18.4 Adjustment, Cleaning, and Protection

18.4.1 The Contractor shall adjust every door after installation so that it swings freely, closes without binding, and latches fully with the lock engaging at full throw.

18.4.2 The Contractor shall install all trim, closures, number plates, and interior equipment after the banks are anchored and adjusted.

18.4.3 The Contractor shall clean all exposed surfaces using a method and an agent the manufacturer's care instructions permit.

18.4.4 Protective coverings shall remain in place until adjustment and cleaning are complete, and shall be removed without leaving adhesive residue on the finish.

18.4.5 Doors that bind, latches that do not engage at full throw, and locks that do not operate shall be corrected by the Contractor before substantial completion.

18.4.6 Components with finish damage visible in the installed position, and components showing corrosion, shall be replaced at the Contractor's cost.

19 Warranty

NOTE A locker warranty that runs from the date of shipment rather than from substantial completion can be substantially expired before the building is occupied, so the start date is as much a part of the selection as the duration. (19.1)

19.2 The manufacturer warranty period, measured from substantial completion, shall be as indicated in the datasheet.

Manufacturer Warranty Periodrange

yr

1235101525

19.3 The manufacturer shall warrant the lockers against defects in materials and workmanship, including finish adhesion, door and latch operation, hinge attachment, and structural integrity of the body and frame, for the specified period measured from the date of substantial completion.

19.4 Where the manufacturer offers a longer or lifetime limited warranty on the construction method specified, that warranty shall be furnished in addition to the period specified, and its terms and exclusions shall be submitted at closeout.

19.5 Locks, and for electronic locks the controllers, keypads, and readers, shall be warranted against defects in materials and workmanship for not less than 2 years from the date of substantial completion.

19.6 The Contractor installation warranty period, measured from substantial completion, shall be as indicated in the datasheet.

Contractor Installation Warranty Periodrange

yr

1235

19.7 The Contractor shall warrant the installation, including level and plumb setting, anchorage, seismic restraint, door alignment, and the reach-range and operable-parts compliance of the accessible lockers, for the specified period.

19.8 Deficiencies attributable to installation workmanship shall be corrected by the Contractor at no cost to the Owner, including the cost of removing and reinstalling adjacent work required to reach the deficiency.

19.9 Where a warranted component is repaired or replaced, the repaired or replaced component shall carry a warranty running for the full original period from the date of the repair, or for the remainder of the original period, whichever ends later.

19.10 The warranty shall not cover damage from use beyond the service exposure indicated in the datasheet, from cleaning agents the manufacturer's care instructions exclude, or from modification of the locker without the manufacturer's written authorization.

19.11 Where the parties disagree whether an observed condition is a warranted defect or damage from use, the Architect shall make the initial determination.

20 Spare Parts

NOTE Attic stock exists because a locker discontinued three years after installation leaves the Owner replacing a whole bank to repair one door. (20.1)

20.2 The attic stock furnished to the Owner shall be as indicated in the datasheet.

Attic Stock Furnishedcheckbox

☑ Spare locks of each installed type

☐ Spare number plates

☑ Touch-up coating of each installed color

☐ Spare hooks and shelves

☐ Spare doors of each installed size

☐ Spare filler and trim stock

☐ No attic stock required

20.3 The quantity of spare locks furnished, expressed as a percentage of the installed lock quantity of each type, shall be as indicated in the datasheet.

Spare Locks Furnished per Installed Typerange

%

010

20.4 Attic stock shall be delivered in labeled cartons identifying the component, the finish color, and the locker type it fits.

20.5 Attic stock shall be delivered to the location the Owner designates and shall be receipted by the Owner's representative.