Metal Lockers
Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
Showing changes from Rev 3
to Rev 4
in Metal Lockers.
---
title: Metal Lockers
…54 unchanged lines
### They establish the product, its dimensions, its finish performance, and — where required — its seismic anchorage. {note}
+### The following submittals shall be submitted for review and returned before fabrication begins.
+
```datasheet
label: Action Submittals Required
…9 unchanged lines
default: "Dimensioned shop drawings (plans and elevations) with tier and opening sizes"
```
−
−### The following submittals shall be submitted for review and returned before fabrication begins.
### Product data shall be submitted for each locker type, construction grade, ventilation type, and lock, and shall include the steel gauge of the body, door, and frame; the finish system; the available colors; and the lock function and keying or programming.
### Shop drawings shall be submitted showing scaled plans and elevations of each locker location, every locker bank, the tier arrangement and individual opening sizes, bank lengths and overall dimensions, the location and tier of each accessible locker, trim, sloped-top, base, end-panel, and filler-panel locations, the number-plate sequence, bench locations, and the anchorage and seismic-restraint details with connection to the building structure.
…7 unchanged lines
### Closeout submittals are delivered at substantial completion and hand the Owner the documentation needed to operate, maintain, and control access to the lockers. {note}
+### At substantial completion the Contractor shall provide the manufacturer's care and maintenance instructions, the manufacturer's written warranty, a master keying schedule or combination/programming record for the installed locks, and an inventory of attic-stock parts (number plates, locks, and touch-up paint) where specified.
+
```datasheet
label: Closeout Submittals Required
…6 unchanged lines
default: "Care and maintenance instructions"
```
−
−### At substantial completion the Contractor shall provide the manufacturer's care and maintenance instructions, the manufacturer's written warranty, a master keying schedule or combination/programming record for the installed locks, and an inventory of attic-stock parts (number plates, locks, and touch-up paint) where specified.
### Lock control documentation shall be transmitted directly to the Owner's designated representative and shall not be left with the lockers.
…11 unchanged lines
### Locks are machined to the manufacturer's door and frame preparation. {note}
+### The locker body, door, frame, trim, and lock shall be a matched system from one source.
+
```datasheet
label: Single-Source Responsibility
…5 unchanged lines
```
−### The locker body, door, frame, trim, and lock shall be a matched system from one source.
−
## Field Measurements {toc}
…3 unchanged lines
### Where field conditions differ from the contract drawings, the Contractor shall notify the Architect before fabrication so that openings, trim, and fillers can be adjusted.
−# Materials {toc}
+# Steel Sheet {toc}
−## Steel Sheet {toc}
−
```datasheet
label: Steel Substrate
…5 unchanged lines
```
−### Locker components shall be formed from prime, commercial-quality mild steel sheet, free of surface imperfections.
−### Cold-rolled sheet shall conform to ASTM A1008/A1008M.
−### Where hot-rolled sheet is used for heavier structural members, it shall conform to ASTM A1011/A1011M.
−### Where lockers will be exposed to elevated humidity or intermittent moisture, zinc-coated (galvannealed) sheet conforming to ASTM A653/A653M shall be specified for the body and door so that the steel substrate resists corrosion at coating defects.
−### In sustained-wet or hose-down environments, steel lockers shall not be used and a non-metallic locker per [[sync/plastic-lockers]] shall be selected instead.
+## Locker components shall be formed from prime, commercial-quality mild steel sheet, free of surface imperfections.
+## Cold-rolled sheet shall conform to ASTM A1008/A1008M.
+## Where hot-rolled sheet is used for heavier structural members, it shall conform to ASTM A1011/A1011M.
+## Where lockers will be exposed to elevated humidity or intermittent moisture, zinc-coated (galvannealed) sheet conforming to ASTM A653/A653M shall be specified for the body and door so that the steel substrate resists corrosion at coating defects.
+## In sustained-wet or hose-down environments, steel lockers shall not be used and a non-metallic locker per [[sync/plastic-lockers]] shall be selected instead.
−## Component Gauges by Construction Grade {toc}
+# Component Gauges by Construction Grade {toc}
−### The steel gauge of each component is the physical measure of locker duty. {note}
−### Gauge is expressed as a sheet-metal gauge number, where a lower number is a thicker, heavier sheet. {note}
−### The body, door, and frame each carry a gauge appropriate to the construction grade; the door and the frame — the components that take direct abuse — are heavier than the body in every grade. {note}
−### The values below are the procurable standards across the major manufacturers for each grade. {note}
+## The steel gauge of each component is the physical measure of locker duty. {note}
+## Gauge is expressed as a sheet-metal gauge number, where a lower number is a thicker, heavier sheet. {note}
+## The body, door, and frame each carry a gauge appropriate to the construction grade; the door and the frame — the components that take direct abuse — are heavier than the body in every grade. {note}
+## The values below are the procurable standards across the major manufacturers for each grade. {note}
−### Standard-duty KD lockers ship as flat components fastened together in the field. {note}
−### They are the economical choice for supervised, low-abuse employee, office, and light-commercial applications. {note}
−### Standard-duty bodies are typically 24-gauge with 16-gauge door frames and 16-gauge doors. {note}
+## Standard-duty KD lockers ship as flat components fastened together in the field. {note}
+## They are the economical choice for supervised, low-abuse employee, office, and light-commercial applications. {note}
+## Standard-duty bodies are typically 24-gauge with 16-gauge door frames and 16-gauge doors. {note}
−### Heavy-duty KD lockers use heavier body and door sheet and reinforced frames while retaining field-assembled KD construction. {note}
−### They are the appropriate selection for school corridors and general institutional use. {note}
−### Heavy-duty bodies are typically 16-gauge with 14- or 16-gauge door frames and 14- or 16-gauge doors. {note}
+## Heavy-duty KD lockers use heavier body and door sheet and reinforced frames while retaining field-assembled KD construction. {note}
+## They are the appropriate selection for school corridors and general institutional use. {note}
+## Heavy-duty bodies are typically 16-gauge with 14- or 16-gauge door frames and 14- or 16-gauge doors. {note}
−### Welded (fully assembled) lockers arrive as rigid, factory-welded units with no field-fastened body seams to loosen, racking-resistant frames, and the highest abuse resistance. {note}
−### They are the appropriate selection for athletic and team locker rooms, public recreation, corrections, and any environment with heavy abuse or no supervision. {note}
−### Welded bodies are typically 16-gauge with 12- or 14-gauge frames and 14- or 16-gauge doors. {note}
+## Welded (fully assembled) lockers arrive as rigid, factory-welded units with no field-fastened body seams to loosen, racking-resistant frames, and the highest abuse resistance. {note}
+## They are the appropriate selection for athletic and team locker rooms, public recreation, corrections, and any environment with heavy abuse or no supervision. {note}
+## Welded bodies are typically 16-gauge with 12- or 14-gauge frames and 14- or 16-gauge doors. {note}
−```datasheet
−label: Construction Grade
−type: select
−options:
− - "Standard-duty knocked-down (KD) — supervised, low-abuse employee/office"
− - "Heavy-duty knocked-down (KD) — school corridor, general institutional"
− - "Welded — athletic/team room, recreation, corrections, high-abuse"
−default: "Heavy-duty knocked-down (KD) — school corridor, general institutional"
−```
+## The locker body gauge shall be specified to match the selected construction grade and service duty.
```datasheet
…6 unchanged lines
```
+## The door frame gauge shall be specified to match the selected construction grade and service duty.
+
```datasheet
label: Door Frame Gauge
…6 unchanged lines
```
+## The door gauge shall be specified to match the selected construction grade and service duty.
+
```datasheet
label: Door Gauge
…5 unchanged lines
```
−### The construction grade shall be selected to match the service duty: standard-duty KD for supervised low-abuse employee and office use, heavy-duty KD for school corridors and general institutional use, and welded for athletic and team rooms, recreation, corrections, and any high-abuse or unsupervised environment.
−### Standard-duty lockers shall not be specified for unsupervised school corridors, athletic rooms, or any high-abuse application.
−### Door frame vertical members shall form a continuous integral door strike the full height of the opening.
−### KD body seams shall be flanged to provide a double thickness of metal at joints and corners.
+## The construction grade shall be selected to match the service duty: standard-duty KD for supervised low-abuse employee and office use, heavy-duty KD for school corridors and general institutional use, and welded for athletic and team rooms, recreation, corrections, and any high-abuse or unsupervised environment.
−## Finish {toc}
+```datasheet
+label: Construction Grade
+type: select
+options:
+ - "Standard-duty knocked-down (KD) — supervised, low-abuse employee/office"
+ - "Heavy-duty knocked-down (KD) — school corridor, general institutional"
+ - "Welded — athletic/team room, recreation, corrections, high-abuse"
+default: "Heavy-duty knocked-down (KD) — school corridor, general institutional"
+```
+## Standard-duty lockers shall not be specified for unsupervised school corridors, athletic rooms, or any high-abuse application.
+## Door frame vertical members shall form a continuous integral door strike the full height of the opening.
+## KD body seams shall be flanged to provide a double thickness of metal at joints and corners.
−### The five-stage (or better) pretreatment — clean, rinse, iron- or zinc-phosphate conversion, rinse, seal — is essential: powder coat applied over unphosphatized steel loses adhesion and the finish fails at the first impact or scratch. {note}
+# Finish {toc}
+## The five-stage (or better) pretreatment — clean, rinse, iron- or zinc-phosphate conversion, rinse, seal — is essential: powder coat applied over unphosphatized steel loses adhesion and the finish fails at the first impact or scratch. {note}
+
+## The finish gloss level shall be specified, selected to suit the application's exposure to scratching, fingerprints, and visible wear such as athletic or corridor use.
+
```datasheet
label: Finish Gloss (ASTM D523, 60-degree)
…6 unchanged lines
```
−```datasheet
−label: Salt-Spray Exposure (ASTM B117) Minimum
−type: range
−unit: h
−options:
− min: 250
− max: 1000
− setpoints: [250, 500, 750, 1000]
−default: 500
−```
+## The locker finish color shall be specified, including whether a single, two-tone, or custom color match is required.
```datasheet
…8 unchanged lines
```
−### Lockers shall be finished with a baked thermoset powder-coat enamel electrostatically applied over a cleaned, phosphatized steel substrate.
−### The cured finish shall meet the performance requirements specified below.
−### Finish adhesion shall be not less than rating 4B when tested per ASTM D3359 (cross-cut tape test).
−### Finish corrosion resistance shall show no more than minimal undercutting at a scribe after 500 hours of salt-spray exposure per ASTM B117.
−### Finish impact resistance shall show no cracking or loss of adhesion at 80 in-lb direct impact per ASTM D2794.
+## Lockers shall be finished with a baked thermoset powder-coat enamel electrostatically applied over a cleaned, phosphatized steel substrate.
+## The cured finish shall meet the performance requirements specified below.
+## Finish adhesion shall be not less than rating 4B when tested per ASTM D3359 (cross-cut tape test).
+## Finish corrosion resistance shall show no more than minimal undercutting at a scribe after 500 hours of salt-spray exposure per ASTM B117.
+```datasheet
+label: Salt-Spray Exposure (ASTM B117) Minimum
+type: range
+unit: h
+options:
+ min: 250
+ max: 1000
+ setpoints: [250, 500, 750, 1000]
+default: 500
+```
+## Finish impact resistance shall show no cracking or loss of adhesion at 80 in-lb direct impact per ASTM D2794.
+
# Locker Types and Configuration {toc}
…9 unchanged lines
### A Z-tier provides two interlocking Z-shaped openings per width, each giving partial hanging height at roughly half the floor area of a single-tier locker — a space-efficient compromise that still allows short garments to hang. {note}
+### Tier shall be selected for the contents and the user: full-height single tier for hanging garments and street clothes, and box or triple tier for compact personal-item storage and high user counts.
+
```datasheet
label: Locker Tier
…9 unchanged lines
```
−### Tier shall be selected for the contents and the user: full-height single tier for hanging garments and street clothes, and box or triple tier for compact personal-item storage and high user counts.
−
## Opening Size {toc}
### The values below are the common procurable nominal sizes and serve as datasheet defaults where the drawings do not dictate otherwise. {note}
+### Individual opening width, depth, and frame height shall be [[drawing: as indicated on the locker elevations]].
+
```datasheet
label: Locker Opening Width (nominal)
…32 unchanged lines
```
−### Individual opening width, depth, and frame height shall be [[drawing: as indicated on the locker elevations]].
−
## Ventilation {toc}
### Non-ventilated solid doors are appropriate only for dry storage of non-perishable items. {note}
### In humid and aquatic environments, ventilation alone does not protect plain steel; specify galvannealed substrate per Materials, or select a non-metallic locker per [[sync/plastic-lockers]]. {note}
+### Lockers that store damp athletic clothing, footwear, or wet-weather garments shall be ventilated so that moisture and odor are not trapped.
+### The ventilation type shall be matched to the airflow needed: louvered doors for general athletic and gym use, and full perforation or diamond perforation for maximum airflow in wet team rooms and pool environments.
+
```datasheet
label: Ventilation Type
…6 unchanged lines
default: "Louvered door (general athletic/gym ventilation)"
```
−
−### Lockers that store damp athletic clothing, footwear, or wet-weather garments shall be ventilated so that moisture and odor are not trapped.
−### The ventilation type shall be matched to the airflow needed: louvered doors for general athletic and gym use, and full perforation or diamond perforation for maximum airflow in wet team rooms and pool environments.
### Louvers and perforations shall be formed in the door (and, for diamond ventilation, the sides) without sharp edges.
…10 unchanged lines
### The recessed handle houses the lock in a protected pocket so the lock body cannot be struck or pried. {note}
+### The latch and handle shall be selected for the service environment: recessed handles and recessed latches for corridor and athletic rooms to reduce snag and vandalism, and surface lift handles for supervised employee use.
+
```datasheet
label: Latch and Handle Type
…6 unchanged lines
default: "Recessed handle, three-point latch (corridor/athletic, anti-pry)"
```
−
−### The latch and handle shall be selected for the service environment: recessed handles and recessed latches for corridor and athletic rooms to reduce snag and vandalism, and surface lift handles for supervised employee use.
### Multi-point (three-point) latching shall be specified for unsupervised, abuse-prone corridor and athletic lockers to resist prying.
…3 unchanged lines
### Where electronic locks are hard-wired or networked, power and data rough-in is coordinated with the electrical trade before fabrication. {note}
−```datasheet
−label: Locking Method
−type: select
−options:
− - "Recessed padlock hasp (user-supplied padlock)"
− - "Built-in combination lock (single-combination, assigned)"
− - "Built-in resettable/multi-user combination lock (shared/day-use)"
− - "Built-in key lock (cam/cylinder, keyed, master-keyed)"
− - "Electronic keypad/RFID lock (programmable, day-use or assigned)"
− - "Provision for Owner-furnished lock (hasp/cutout only)"
−default: "Built-in combination lock (single-combination, assigned)"
−```
+### The built-in lock keying or control scheme shall be specified to match the Owner's access-control needs and key or combination management.
```datasheet
…9 unchanged lines
### The locking method shall be selected for the Owner's access-control needs, the user population, and the willingness to manage keys, combinations, or batteries.
+
+```datasheet
+label: Locking Method
+type: select
+options:
+ - "Recessed padlock hasp (user-supplied padlock)"
+ - "Built-in combination lock (single-combination, assigned)"
+ - "Built-in resettable/multi-user combination lock (shared/day-use)"
+ - "Built-in key lock (cam/cylinder, keyed, master-keyed)"
+ - "Electronic keypad/RFID lock (programmable, day-use or assigned)"
+ - "Provision for Owner-furnished lock (hasp/cutout only)"
+default: "Built-in combination lock (single-combination, assigned)"
+```
### Electronic locks shall be specified with a clearly defined power source (battery or hard-wired).
### Electronic locks shall be specified with a documented mechanical or master override for lockout recovery.
…10 unchanged lines
### Omitting sloped tops in a dusty or unsupervised environment is a common and avoidable maintenance failure. {note}
+### Continuous sloped tops, typically 16-gauge with an approximately 18-degree pitch, shall be specified for corridor, athletic, and public installations to prevent the locker tops from becoming a dust shelf and an informal storage surface.
+
```datasheet
label: Sloped Tops
…4 unchanged lines
default: "Continuous sloped tops (prevents storage/dust accumulation atop lockers)"
```
−
−### Continuous sloped tops, typically 16-gauge with an approximately 18-degree pitch, shall be specified for corridor, athletic, and public installations to prevent the locker tops from becoming a dust shelf and an informal storage surface.
### Sloped-top end closures and splice covers shall be furnished to finish exposed ends and joints.
…2 unchanged lines
### A Z-base (channel base) raises the lockers off the floor and creates a recessed toe space, improving appearance and simplifying floor cleaning; closed bases conceal legs for a finished look in public areas. {note}
+### The locker base condition shall be specified and coordinated with the finished flooring and base trades.
+
```datasheet
label: Locker Base
…50 unchanged lines
### An arbitrary numbering sequence forces the Owner to renumber after installation, so the sequence is set from the Owner's locker-assignment scheme. {note}
+### Number plates shall be riveted to each door at a consistent location.
+### The numbering sequence shall be coordinated with the Owner's locker-assignment scheme.
+
```datasheet
label: Number Plates
…6 unchanged lines
```
−### Number plates shall be riveted to each door at a consistent location.
−### The numbering sequence shall be coordinated with the Owner's locker-assignment scheme.
−
## Interior Equipment and Benches {toc}
…30 unchanged lines
### The 2010 ADA Standards (Sections 225 and 811) and ICC A117.1 require that at least 5 percent of lockers of each type, but no fewer than one of each type, comply. "Each type" includes each functional class of locker (for example, full-height garment lockers and box lockers are different types and each requires its accessible share). {note}
+### Where lockers are provided, accessible lockers shall be provided in accordance with the adopted accessibility standard.
+
```datasheet
label: Accessible Locker Quantity Basis
…5 unchanged lines
default: "5 percent of each type, minimum one of each type (per ADA 811 / A117.1)"
```
−
−### Where lockers are provided, accessible lockers shall be provided in accordance with the adopted accessibility standard.
### The number, type, and location of accessible lockers shall be [[drawing: as indicated on the locker plans and accessibility compliance documents]].
### The Architect shall confirm the count and configuration of accessible lockers from the accessibility compliance path.
…64 unchanged lines
### Blocking is furnished and installed under the wall trades; anchoring lockers or benches to gypsum board without blocking is a primary cause of failure. {note}
+### Lockers shall be installed after the wall and floor finishes are complete and the building is enclosed and conditioned.
+### The Contractor shall verify before installation that solid in-wall blocking has been provided where lockers, trim, or benches anchor to walls.
+
```datasheet
label: In-Wall Blocking Verified Before Installation
…4 unchanged lines
default: "Yes — blocking verified at all wall anchorage points before installation"
```
−
−### Lockers shall be installed after the wall and floor finishes are complete and the building is enclosed and conditioned.
−### The Contractor shall verify before installation that solid in-wall blocking has been provided where lockers, trim, or benches anchor to walls.
### The locker Contractor shall confirm the presence and location of blocking against the shop drawings and shall notify the Architect of any missing or mislocated blocking before proceeding.
### Anchoring lockers or benches to gypsum board without blocking shall not be permitted.
…51 unchanged lines
## Welded heavy-duty locker programs commonly carry substantially longer warranties than standard-duty KD lockers. {note}
−```datasheet
−label: Locker Warranty Period
−type: select
−options:
− - "1 year from substantial completion — standard"
− - "5 years from substantial completion"
− - "Lifetime limited warranty against defects (welded heavy-duty programs)"
−default: "5 years from substantial completion"
−```
+## The lock warranty coverage shall be specified to match the selected locking method.
```datasheet
…17 unchanged lines
## The manufacturer shall warrant the lockers against defects in materials and workmanship — including finish adhesion, door and latch operation, and structural integrity of the body and frame — for the specified period.
## Where the project uses welded construction, the longer warranty offered by the welded program should be obtained and documented.
+
+```datasheet
+label: Locker Warranty Period
+type: select
+options:
+ - "1 year from substantial completion — standard"
+ - "5 years from substantial completion"
+ - "Lifetime limited warranty against defects (welded heavy-duty programs)"
+default: "5 years from substantial completion"
+```
## The warranty shall not cover abuse beyond the rated service condition, improper cleaning chemicals, or modifications made without the manufacturer's authorization.
## The Contractor shall warrant the installation — including level and plumb setting, anchorage and seismic restraint, door alignment, and compliance of accessible lockers with the reach-range and operable-parts requirements — for the specified period.
## Deficiencies attributable to installation workmanship shall be corrected by the Contractor at no cost to the Owner.