+---
+title: Access Doors and Panels
+category: Architectural / Openings
+toc_depth: 3
+description: >
+ When to use: Architectural access doors and panels set into walls and ceilings to provide concealed, repeatable access to valves, dampers, cleanouts, junction boxes, shutoffs, and other serviceable equipment hidden behind a finished surface. Covers panel type by substrate and finish (flush universal for drywall, masonry, and plaster; recessed for tile; recessed for drywall or plaster infill; drywall-bead taping-flange; surface-mount), gasketed and insulated panels for exterior or thermal-barrier locations, fire-rated access doors that are UL or ULC listed and labeled (insulated, self-closing, self-latching, for use in fire-resistance-rated wall and ceiling assemblies under IBC Section 716), security panels with no exposed hardware, materials and gauges (cold-rolled and galvannealed steel, stainless steel, aluminum), frame types for each substrate, latch and hinge selection, prime and factory finish, sizing for the largest serviceable component, accessibility of operable parts, and coordination so a panel is provided wherever a concealed device requires service.
+ Not intended for: Floor access doors and floor hatches, roof hatches and smoke vents; duct-mounted access doors that are part of the duct system (see [[syncs/hvac-ductwork]]); large equipment-access or louvered doors; finish swinging doors and frames (see [[syncs/doors-frames-and-hardware]]); fire dampers and their listing (see [[syncs/firestopping]], adjacent); and access to equipment that is reached through a normal door rather than a wall or ceiling panel.
+---
+
+# Scope {toc}
+
+## This standard covers the furnishing and installation of architectural access doors and panels set into walls and ceilings to provide concealed access to building equipment that requires periodic service. {note}
+
+## An access door is a hinged panel and frame factory-fabricated as a unit, set into a finished wall or ceiling and finished to match the surrounding surface, that opens to expose a valve, damper actuator, cleanout, shutoff, junction box, or other serviceable device concealed behind the finish. {note}
+
+## The scope includes the selection of panel type to match the substrate and finish, the material and gauge of the panel and frame, the fire and smoke rating where the panel falls in a rated assembly, the latch and hinge, the finish, the size, the accessibility of operable parts, and the coordination that ensures a panel is provided wherever a concealed device must be reached. {note}
+
+## This standard establishes the material, construction, fire-rating, finish, hardware, accessibility, and installation requirements for the access doors and panels shown on the drawings and required to serve concealed equipment. {note}
+
+## The governing decision in this standard is providing the right panel at every concealed serviceable device: the correct type for the substrate, the correct rating for the assembly, and a size large enough for the device to be serviced through it. {note}
+
+## A missing panel forces destructive demolition of the finish to reach a leaking valve or a tripped device; a non-rated panel in a fire-rated wall breaches the rating; and an undersized panel cannot pass the component it was provided to serve. {note}
+
+## The location of each access door and panel shall be [[drawing: as indicated on the architectural reflected ceiling plans, wall elevations, and the mechanical, plumbing, and electrical drawings that locate the concealed devices served]].
+
+## This work shall be coordinated with [[syncs/gypsum-board-assemblies]] for panel openings, framing, and finishing at gypsum walls and ceilings.
+
+## This work shall be coordinated with [[syncs/ceramic-tile]] for recessed tile-infill panels so that the panel module aligns with the tile coursing.
+
+## This work shall be coordinated with [[syncs/firestopping]] where a rated penetration and a rated access panel occur in the same assembly.
+
+## This work shall be coordinated with the mechanical, plumbing, and electrical trades so that a panel is provided at every concealed valve, damper, cleanout, shutoff, and serviceable device, and sized for the largest component to be reached.
+
+## This work shall be coordinated with [[syncs/hvac-ductwork]] so that wall and ceiling access panels serving duct-mounted devices are distinguished from the duct-mounted access doors furnished as part of the ductwork.
+
+# Referenced Standards {toc}
+
+## The materials, fabrication, fire rating, finish, and installation of access doors and panels are governed by the standards listed in the table below. {note}
+
+| Standard | Title |
+|----------|-------|
+| ASTM A1008/A1008M | Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy |
+| ASTM A653/A653M | Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process |
+| ASTM A240/A240M | Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
+| ASTM B209 | Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate |
+| ASTM A1011/A1011M | Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy |
+| ASTM D3359 | Standard Test Methods for Rating Adhesion by Tape Test |
+| ASTM B117 | Standard Practice for Operating Salt Spray (Fog) Apparatus |
+| UL 10B | Standard for Fire Tests of Door Assemblies |
+| UL 263 / ASTM E119 | Standard for Fire Tests of Building Construction and Materials |
+| NFPA 80 | Standard for Fire Doors and Other Opening Protectives |
+| NFPA 252 | Standard Methods of Fire Tests of Door Assemblies |
+| IBC Section 716 | International Building Code — Opening Protectives |
+| IBC Section 703 | International Building Code — Fire-Resistance Ratings and Fire Tests |
+| ICC A117.1 | Accessible and Usable Buildings and Facilities |
+| 2010 ADA Standards for Accessible Design | Americans with Disabilities Act Accessibility Standards (operable parts) |
+
+## Materials, fabrication, fire rating, finish, and installation shall comply with the latest adopted edition of the referenced standards.
+
+## Where the contract documents or the adopted building code impose more stringent requirements than a referenced standard, the more stringent requirement shall govern.
+
+## The Contractor shall resolve conflicts in the referenced standards in writing with the Architect before fabrication begins.
+
+# Submittals {toc}
+
+## Action Submittals {toc}
+
+### Action submittals are reviewed and returned before fabrication so that panel type, material, rating, finish, latch, and the schedule of locations and sizes are confirmed before any panel is ordered. {note}
+
+### The Contractor shall submit the following for review and return before fabrication begins:
+
+- Product data for each access door and panel type, indicating the substrate and finish it is intended for, the material and gauge of the panel and frame, the frame profile and flange type, the latch and hinge, and the finish
+- Fire-rating listing documentation for every panel located in a fire-resistance-rated wall or ceiling assembly, identifying the listing laboratory, the rating period, the temperature-rise rating where required, and the assemblies in which the panel is listed
+- A schedule of access doors and panels listing each panel by mark or location, the room and surface (wall or ceiling), the substrate and finish, the panel type, the rating, the clear opening size, the latch, and the device served
+- Color and finish samples where a factory finish color is specified
+- Shop drawings or rough-opening dimension data for each panel type, giving the rough opening, the overall frame dimension, and the clear opening, for coordination with the framing and finishing trades
+
+```datasheet
+label: Action Submittals Required
+type: checkbox
+options:
+ - "Product data for each access door and panel type"
+ - "Fire-rating listing documentation for panels in rated assemblies"
+ - "Schedule of access doors and panels (location, type, rating, size, device served)"
+ - "Color and finish samples (where factory finish color specified)"
+ - "Rough-opening and clear-opening dimension data for each type"
+default: "Product data for each access door and panel type"
+```
+
+### The schedule of access doors and panels shall reconcile every concealed serviceable device against a panel, so that no device is left without access and no panel is provided without a device to serve.
+
+### Fire-rating listing documentation shall be submitted for every panel in a rated assembly before that panel is ordered, because the rating, the temperature-rise rating, and the permitted assemblies are fixed by the listing and cannot be field-modified.
+
+## Closeout Submittals {toc}
+
+### Closeout submittals are delivered at substantial completion and hand the Owner the documentation needed to operate, key, and maintain the installed panels. {note}
+
+### The Contractor shall provide the following at substantial completion:
+
+- Operation and maintenance data for each panel type, including latch operation and any required keys or tools
+- Keying record for keyed panels, identifying the keying group and transmitting keys to the Owner
+- Fire-rating listing documentation for the as-installed rated panels, for the Owner's fire-door inspection records
+- Attic-stock keys and any special latch tools where specified
+
+```datasheet
+label: Closeout Submittals Required
+type: checkbox
+options:
+ - "Operation and maintenance data (latch operation, keys, tools)"
+ - "Keying record for keyed panels (transmitted to Owner)"
+ - "Fire-rating listing documentation for as-installed rated panels"
+ - "Attic-stock keys and special latch tools (where specified)"
+default: "Operation and maintenance data (latch operation, keys, tools)"
+```
+
+### Keys and keying records for keyed panels shall be transmitted directly to the Owner's designated representative and shall not be left at the panels.
+
+# Quality Assurance {toc}
+
+## Manufacturer Qualifications {toc}
+
+### The manufacturer shall be a firm regularly engaged in the fabrication of access doors and panels of the types and ratings specified, with products in service in comparable applications.
+
+### For fire-rated access doors, the manufacturer shall maintain a current, active listing from a Nationally Recognized Testing Laboratory for the rating periods and assemblies required on the project.
+
+## Single Source {toc}
+
+### Access doors and panels of all types on the project should be furnished by a single manufacturer so that finish, latch operation, and keying are consistent across the building. {note}
+
+```datasheet
+label: Single-Source Responsibility
+type: radio
+options:
+ - "All access doors and panels from a single manufacturer"
+ - "Multiple manufacturers permitted (match finish and keying across types)"
+default: "All access doors and panels from a single manufacturer"
+```
+
+### Where panels are furnished by more than one manufacturer, the finish, the latch type within each function, and the keying group shall be coordinated so that the installation reads as a single system.
+
+## Listed Assembly Integrity — Fire-Rated Panels {toc}
+
+### A fire-rated access door is a listed assembly; the panel, frame, hinge, latch, spring closer, and insulation are tested together and labeled as a unit. {note}
+
+### No component of a listed fire-rated access door assembly shall be substituted, removed, or field-modified, because any such change voids the listing and breaches the rating of the assembly it serves.
+
+### The latch, the spring closer, and the insulation of a fire-rated panel shall not be removed or defeated, because the listing requires the panel to self-close and self-latch under fire conditions.
+
+# Substrate and Type Selection {toc}
+
+## The single most consequential selection for a non-rated panel is the type that matches the substrate and finish, because the panel type determines whether the installed panel sits flush, accepts the finish material, and reads cleanly in the surface. {note}
+
+## A flush universal panel set into a tiled wall leaves an exposed painted-steel panel in a field of tile; a panel without a taping flange set into gypsum board leaves a visible frame line that telegraphs through paint; and a panel without an infill pan in a tiled or plastered surface cannot receive the finish. {note}
+
+## Panel Type by Substrate {toc}
+
+### A flush universal panel has a flush painted-steel door and an exposed frame, set into drywall, masonry, or plaster, and is the general-purpose panel where an exposed painted panel is acceptable. {note}
+
+### A drywall-bead (taping-flange) panel has a perforated taping flange that is finished into the gypsum board joint compound so the frame line disappears, producing the cleanest result in a painted gypsum surface. {note}
+
+### A recessed panel for drywall or plaster infill has a recessed pan, typically 5/8 in. or 1/2 in. deep, that receives gypsum board or a skim coat so the door reads as a continuation of the surface. {note}
+
+### A recessed panel for tile has a recessed pan that receives the tile and setting bed, sized and located so the tile in the panel aligns with the surrounding tile coursing. {note}
+
+### A surface-mount panel has a frame and door that sit on the face of the finished surface, used where the panel is mounted after the finish is complete or where a recessed installation is not practical. {note}
+
+```datasheet
+label: Access Panel Type
+type: select
+drawing_ref: true
+options:
+ - "Flush universal (exposed frame, painted steel door) — drywall, masonry, plaster"
+ - "Drywall-bead taping flange (concealed frame) — painted gypsum board"
+ - "Recessed for drywall/plaster infill (recessed pan receives gypsum or skim coat)"
+ - "Recessed for tile (recessed pan receives tile and setting bed)"
+ - "Surface-mount (frame and door on face of finished surface)"
+default: "Flush universal (exposed frame, painted steel door) — drywall, masonry, plaster"
+```
+
+### The panel type shall be selected to match the substrate and finish at each location, as scheduled.
+
+### A flush universal panel shall not be used in a tiled or otherwise finished surface where a recessed infill panel is required to receive the finish.
+
+### A recessed-for-tile panel shall be located and sized so that the panel tile aligns with the surrounding tile coursing, coordinated with [[syncs/ceramic-tile]].
+
+### Recessed infill panels shall have the infill pan depth coordinated with the thickness of the finish material to be received, so that the finished door is flush with the surrounding surface.
+
+## Substrate Condition {toc}
+
+```datasheet
+label: Substrate / Mounting Condition
+type: select
+drawing_ref: true
+options:
+ - "Gypsum board on metal or wood studs"
+ - "Gypsum board ceiling / suspended drywall"
+ - "Unit masonry (CMU or brick)"
+ - "Plaster on lath or veneer plaster"
+ - "Ceramic tile over backer"
+ - "Suspended acoustical ceiling (lay-in or surface panel)"
+default: "Gypsum board on metal or wood studs"
+```
+
+### The frame type and anchorage shall be appropriate for the substrate at each panel, as scheduled.
+
+### For masonry installations, the panel frame shall be of the masonry type with anchors or a flange suited to the masonry coursing and the opening.
+
+# Materials {toc}
+
+## The panel material is selected for the environment: cold-rolled steel for standard dry interiors, galvannealed steel where corrosion resistance is needed and the panel will be painted, stainless steel for wet, washdown, and sanitary locations, and aluminum where light weight or corrosion resistance with a mill or anodized finish is wanted. {note}
+
+## Panel and Frame Material {toc}
+
+```datasheet
+label: Panel and Frame Material
+type: select
+drawing_ref: true
+options:
+ - "Cold-rolled steel (ASTM A1008), factory prime, field or factory painted"
+ - "Galvannealed steel (ASTM A653), factory prime, field or factory painted"
+ - "Stainless steel type 304 (ASTM A240), No. 4 satin finish"
+ - "Stainless steel type 316 (ASTM A240) — coastal / chemically aggressive"
+ - "Aluminum (ASTM B209), mill or anodized finish"
+default: "Cold-rolled steel (ASTM A1008), factory prime, field or factory painted"
+```
+
+### Cold-rolled steel panels and frames shall conform to ASTM A1008.
+
+### Galvannealed steel panels and frames shall conform to ASTM A653, with an alloyed zinc-iron coating, and shall be specified in lieu of cold-rolled steel where corrosion resistance of the substrate at coating defects is needed and the panel will be painted.
+
+### Stainless steel panels and frames shall conform to ASTM A240, type 304 for general wet and sanitary locations and type 316 for coastal or chemically aggressive locations, with a No. 4 satin finish unless otherwise scheduled.
+
+### Aluminum panels and frames shall conform to ASTM B209 and shall be used where light weight or a mill or anodized finish is wanted and the strength of aluminum is adequate for the opening size.
+
+### Cold-rolled steel shall not be used for exterior, washdown, high-humidity, or chemically aggressive locations, where galvannealed steel, stainless steel, or aluminum is required.
+
+## Gauge {toc}
+
+### Heavier gauge resists denting and prying; the door and frame of a standard interior panel are typically 16 gauge for the door and frame, with lighter or heavier gauge selected for light-duty or security applications. {note}
+
+```datasheet
+label: Door and Frame Gauge — Steel
+type: select
+options:
+ - "20 gauge door / 16 gauge frame — light-duty interior"
+ - "16 gauge door / 16 gauge frame — standard interior (typical)"
+ - "14 gauge door / 16 gauge frame — heavy-duty / security"
+default: "16 gauge door / 16 gauge frame — standard interior (typical)"
+```
+
+### The panel door and frame gauge shall be selected for the duty and security of the location, as scheduled.
+
+### Security and high-abuse panels shall use the heavier 14-gauge door gauge.
+
+# Fire-Rated and Smoke-Rated Access Doors {toc}
+
+## Where an access door falls in a fire-resistance-rated wall or ceiling assembly, the access door is an opening protective and shall be a listed, labeled fire-rated assembly under IBC Section 716. {note}
+
+## A fire-rated access door is insulated, self-closing, and self-latching, and is tested under UL 10B (or NFPA 252) and labeled by a Nationally Recognized Testing Laboratory for the assemblies and rating periods in which it is listed. {note}
+
+## A fire-rated access door is NOT the access door used to reach a fire damper inside a duct; duct-mounted access doors that serve dampers are part of the duct system under [[syncs/hvac-ductwork]] and are tested and listed differently. A wall or ceiling access panel that happens to be near a fire damper does not serve that damper's access. {note}
+
+## When a Fire Rating Applies {toc}
+
+```datasheet
+label: Fire Rating Required at This Panel
+type: radio
+drawing_ref: true
+options:
+ - "Not rated — panel not in a fire-resistance-rated assembly"
+ - "Fire rated — panel in a fire-resistance-rated wall or ceiling assembly"
+default: "Not rated — panel not in a fire-resistance-rated assembly"
+```
+
+### A fire-rated access door shall be provided at every access panel located in a fire-resistance-rated wall or ceiling assembly, as identified on the fire-resistance-rated construction plans.
+
+### The Architect shall identify, from the fire-resistance-rated construction plans, every access panel that falls in a rated assembly, so that a rated panel is scheduled at each.
+
+### A non-rated access panel shall not be installed in a fire-resistance-rated assembly, because it breaches the rating of the assembly.
+
+## Rating Period {toc}
+
+```datasheet
+label: Fire-Rated Access Door Rating Period
+type: select
+drawing_ref: true
+options:
+ - "1 hour (B label) — openings in 1-hour and 2-hour walls per IBC 716"
+ - "1-1/2 hour (B label) — common listed wall rating"
+ - "3 hour (A label) — openings in 3-hour and 4-hour walls"
+ - "Ceiling rating per listing (where panel is in a rated ceiling membrane)"
+default: "1-1/2 hour (B label) — common listed wall rating"
+```
+
+### The rating period of the access door shall match the rating required for an opening protective in the assembly at each panel, determined from the fire-resistance-rated construction plans and IBC Section 716.
+
+### Under IBC Section 716, the required opening-protective rating depends on the rated assembly type, and the Architect shall confirm the required period from the code compliance path rather than from general guidance. {note}
+
+### A single 1-1/2 hour B-label wall panel is commonly listed by the testing laboratory for both wall and ceiling use; the listing documentation shall be checked for each application before a single product is scheduled for both. {note}
+
+## Temperature-Rise Rating {toc}
+
+### A temperature-rise rating limits the temperature rise on the unexposed face of the panel during the first 30 minutes of the fire test, and is required where the panel is in an assembly enclosing a vertical exit or exit-access stairway. {note}
+
+```datasheet
+label: Temperature-Rise Rating Required
+type: radio
+options:
+ - "Not required — panel not in a stair or exit enclosure"
+ - "450°F maximum rise at 30 minutes — stair/exit enclosure"
+ - "250°F maximum rise at 30 minutes — most stringent"
+default: "Not required — panel not in a stair or exit enclosure"
+```
+
+### Where the rated assembly enclosing a vertical exit or exit-access stairway requires a temperature-rise-rated opening protective, the access door shall carry the required temperature-rise rating, confirmed by the listing documentation.
+
+### A panel rated for a 250°F maximum temperature rise satisfies a requirement for a 450°F rating, because the 250°F limit is the more stringent. {note}
+
+## Self-Closing and Self-Latching {toc}
+
+### A fire-rated access door shall be self-closing by an integral spring and shall be self-latching, so that the panel returns to the closed and latched position without manual action.
+
+### The self-closing spring and the latch of a fire-rated access door shall not be removed, blocked, or defeated.
+
+### A fire-rated access door shall not be held open by any means not part of the listed assembly.
+
+## Smoke-Rated Panels {toc}
+
+```datasheet
+label: Smoke Rating Required
+type: radio
+options:
+ - "Not required"
+ - "Required — gasketed smoke-rated panel in a smoke barrier"
+default: "Not required"
+```
+
+### Where an access panel falls in a smoke barrier or smoke partition, a gasketed, smoke-rated panel shall be provided, with continuous gasketing and a positive latch, confirmed against the listing.
+
+# Insulated and Gasketed Panels {toc}
+
+## A panel in an exterior wall or ceiling, or in a wall separating conditioned from unconditioned space, is a thermal and air-barrier penetration; an insulated, gasketed panel maintains the thermal barrier and prevents air leakage and condensation at the panel. {note}
+
+## Insulation {toc}
+
+```datasheet
+label: Panel Insulation
+type: radio
+options:
+ - "Not insulated — interior panel within conditioned space"
+ - "Insulated — exterior wall/ceiling or thermal-barrier location"
+default: "Not insulated — interior panel within conditioned space"
+```
+
+### An insulated panel shall be provided where the panel falls in an exterior wall or ceiling, or in a wall or ceiling separating conditioned from unconditioned space.
+
+### The insulation in a fire-rated access door shall be the listed insulation of the rated assembly and shall not be substituted.
+
+## Gasketing {toc}
+
+```datasheet
+label: Panel Gasketing
+type: radio
+options:
+ - "Not gasketed — standard interior panel"
+ - "Gasketed — continuous perimeter gasket for air seal / dust / thermal"
+default: "Not gasketed — standard interior panel"
+```
+
+### A gasketed panel with a continuous perimeter gasket shall be provided where an air seal is required, including exterior panels, thermal-barrier panels, and panels in clean or dust-sensitive spaces.
+
+### The gasket shall seal continuously around the door perimeter when the latch is engaged.
+
+# Security Panels {toc}
+
+## A security panel has no operable hardware on its exposed face and is opened only with a key or special tool, so that the concealed device cannot be reached by an unauthorized person. {note}
+
+```datasheet
+label: Security Panel Required
+type: radio
+drawing_ref: true
+options:
+ - "Standard panel — exposed latch acceptable"
+ - "Security panel — no exposed hardware, keyed or special-tool access"
+default: "Standard panel — exposed latch acceptable"
+```
+
+### A security panel shall be provided where the panel is in a public-accessible location and the concealed device must be protected from tampering, including panels serving shutoffs, controls, and electrical devices in corridors and public spaces.
+
+### A security panel shall have no exposed operable hardware on the face and shall be opened only by a keyed cylinder or a tamper-resistant special-tool latch.
+
+### Standard panels with an exposed latch shall not be used at public-accessible locations where tamper protection is required.
+
+# Latch and Hinge {toc}
+
+## The latch is selected for how the panel will be opened and by whom: a screwdriver or cam latch for service-only panels, a keyed cylinder for security, a knurled knob for tool-free frequent access, and a touch latch where a clean face with no projecting hardware is wanted. {note}
+
+## Latch Type {toc}
+
+### A screwdriver cam (1/4-turn) latch is opened with a screwdriver and is the economical default for service-only panels not requiring security. {note}
+
+### A key-operated cylinder cam latch is opened with a key and provides security and keyed access control. {note}
+
+### A knurled-knob latch is operated by hand without a tool, for frequent tool-free access. {note}
+
+### A touch latch (push-to-open, spring-loaded) opens at a push and leaves no projecting hardware on the face, for a clean appearance. {note}
+
+```datasheet
+label: Latch Type
+type: select
+drawing_ref: true
+options:
+ - "Screwdriver cam (1/4-turn) — service-only, no security (typical)"
+ - "Key-operated cylinder cam — security / keyed access"
+ - "Knurled knob — tool-free frequent access"
+ - "Touch latch (push-to-open) — clean face, no projecting hardware"
+ - "Self-latching spring latch — required at fire-rated panels"
+default: "Screwdriver cam (1/4-turn) — service-only, no security (typical)"
+```
+
+### The latch type shall be selected for the access function and security of each panel, as scheduled.
+
+### Fire-rated panels shall use the self-latching spring latch of the listed assembly.
+
+### Keyed panels shall be keyed as scheduled, and where multiple keyed panels serve a single system or zone they shall be keyed alike unless separate keying is scheduled.
+
+```datasheet
+label: Keyed Panel Keying
+type: radio
+options:
+ - "Not applicable — non-keyed latch"
+ - "Keyed alike within zone"
+ - "Keyed differently per panel"
+ - "Master-keyed to Owner system"
+default: "Not applicable — non-keyed latch"
+```
+
+### The number of turns or cam latches on a panel shall be selected for the panel size, with multiple latches provided on large panels so that the door seals and latches uniformly across its width and height.
+
+## Hinge {toc}
+
+```datasheet
+label: Hinge Type
+type: select
+options:
+ - "Concealed pivot / spring hinge — standard small and medium panels"
+ - "Continuous (piano) hinge — large, heavy, or high-cycle panels"
+ - "Removable / lift-off hinge — where full door removal is wanted for service"
+default: "Concealed pivot / spring hinge — standard small and medium panels"
+```
+
+### A continuous (piano) hinge shall be provided on large, heavy, or high-cycle panels so that the door load is distributed along the full height and the door does not sag.
+
+### Fire-rated panels shall use the hinge of the listed assembly.
+
+# Finish {toc}
+
+## Steel Panel Finish {toc}
+
+```datasheet
+label: Steel Panel Factory Finish
+type: radio
+options:
+ - "Factory prime only — field paint under painting section (typical)"
+ - "Factory powder-coat finish — color as scheduled"
+ - "Galvannealed, field prime and paint"
+default: "Factory prime only — field paint under painting section (typical)"
+```
+
+### Steel panels and frames shall be cleaned, phosphatized, and factory-primed with a rust-inhibiting primer.
+
+### Where a factory finish is specified, the panel shall receive a baked powder-coat finish in the scheduled color.
+
+### Field painting of factory-primed panels shall be coordinated with the painting trade so that primed panels are not left exposed to weather or to occupancy before the finish coat is applied.
+
+### A factory powder-coat finish provides better durability and color consistency than field paint but limits field touch-up, while a factory prime with field paint allows the panel to be painted to match the surrounding surface. {note}
+
+## Stainless and Aluminum Finish {toc}
+
+```datasheet
+label: Stainless / Aluminum Finish
+type: radio
+options:
+ - "Stainless No. 4 satin (directional brushed)"
+ - "Stainless No. 8 mirror polish"
+ - "Aluminum mill finish"
+ - "Aluminum clear anodized"
+default: "Stainless No. 4 satin (directional brushed)"
+```
+
+### Stainless steel panels shall be furnished with a No. 4 satin finish unless a mirror polish is scheduled, with the grain direction consistent across adjacent panels.
+
+### Salt-spray corrosion resistance of factory-finished steel panels in exterior or corrosive locations shall be demonstrated per ASTM B117 where required by the project.
+
+# Sizing {toc}
+
+## The clear opening of an access panel shall be sized for the largest component to be serviced through it, including the room and reach needed to operate a valve handle, withdraw a filter, or service a device, not merely to expose the device. {note}
+
+## An undersized panel that exposes a valve but does not allow a wrench to turn it, or that exposes a device but does not allow it to be withdrawn, is a failed panel that forces finish demolition at the first service call. {note}
+
+```datasheet
+label: Clear Opening Width
+type: range
+unit: in
+drawing_ref: true
+options:
+ min: 8
+ max: 48
+ setpoints: [8, 12, 14, 18, 22, 24, 30, 36, 48]
+default: 24
+```
+
+```datasheet
+label: Clear Opening Height
+type: range
+unit: in
+drawing_ref: true
+options:
+ min: 8
+ max: 48
+ setpoints: [8, 12, 14, 18, 22, 24, 30, 36, 48]
+default: 24
+```
+
+### The clear opening shall be sized for the largest serviceable component reached through the panel, with allowance for the room to operate and withdraw that component.
+
+### The panel size and location shall be [[drawing: as indicated on the access panel schedule and the drawings locating the concealed device served]].
+
+### Where a single panel serves more than one device, the panel shall be sized and located to reach all of the devices it serves.
+
+# Accessibility {toc}
+
+## Where the operable parts of an access panel — a latch, knob, or keyed cylinder that a building occupant operates — fall within the accessible reach range, those operable parts shall meet the accessibility requirements; a service-only panel operated by maintenance staff with a tool is generally not an occupant operable part. {note}
+
+```datasheet
+label: Operable Parts Subject to Accessibility
+type: radio
+options:
+ - "No — service-only panel, operated by staff with a tool"
+ - "Yes — panel operated by occupants, operable parts on accessible route"
+default: "No — service-only panel, operated by staff with a tool"
+```
+
+### Where an access panel is operated by building occupants and its operable parts are on an accessible route, the operable parts shall comply with the reach-range and operation requirements of ICC A117.1 and the ADA Standards.
+
+### Operable parts subject to accessibility shall be within the reach range of 15 in. minimum to 48 in. maximum above the finished floor.
+
+### Operable parts subject to accessibility shall be operable with one hand, without tight grasping, pinching, or twisting of the wrist, and with not more than 5 lbf of force.
+
+### A keyed cylinder or screwdriver latch that requires twisting or a tool does not meet the operable-parts criteria and shall not be used where the panel is an occupant operable part on an accessible route.
+
+# Installation {toc}
+
+## Coordination and Location {toc}
+
+### The Contractor shall confirm, before rough-in, that an access panel is located at every concealed valve, damper actuator, cleanout, shutoff, junction box, and other serviceable device, and shall notify the Architect of any concealed device left without access.
+
+### Access panels shall be located so that the device served is reachable through the panel, accounting for the depth of the device behind the finish and any obstruction between the panel and the device.
+
+### Access panels in occupied and public spaces should be located inconspicuously and aligned with the surface layout (tile coursing, ceiling grid, wall joints) so that the panel reads cleanly in the finish. {note}
+
+## Rough Opening and Framing {toc}
+
+### The rough opening shall be framed to the panel manufacturer's required dimension for the panel type and size, with framing to carry the panel and resist racking.
+
+### At gypsum board walls and ceilings, the opening shall be framed and the panel installed and finished in coordination with [[syncs/gypsum-board-assemblies]].
+
+### Drywall-bead taping-flange panels shall be set and the flange finished into the gypsum board joint compound so the frame line is concealed.
+
+### Recessed infill panels shall be set so that the finish received in the pan is flush with the surrounding surface when complete.
+
+## Fire-Rated Panel Installation {toc}
+
+### Fire-rated access doors shall be installed in accordance with the listing and NFPA 80, in the assemblies for which they are listed, without field modification.
+
+### The annular space and any firestopping at a fire-rated panel installed in a rated assembly shall be coordinated with [[syncs/firestopping]] so that the rating of the assembly is maintained around the panel.
+
+### The self-closing and self-latching function of each installed fire-rated access door shall be verified to operate from the full-open position before turnover.
+
+## Anchorage {toc}
+
+### Panels shall be set plumb and square and anchored to the framing or substrate so that the door operates freely and the frame does not rack.
+
+### Masonry-type frames shall be anchored to the masonry as the wall is laid up, or post-installed with anchors suited to the masonry where the wall is existing.
+
+## Adjustment and Cleaning {toc}
+
+### After installation the Contractor shall adjust each panel so that the door operates freely, closes fully, and the latch engages.
+
+### Fire-rated panels that do not self-close and self-latch from the full-open position shall be corrected.
+
+### Protective coverings and labels not part of the permanent listing label shall be removed, and all panel surfaces shall be cleaned at completion.
+
+# Warranty {toc}
+
+```datasheet
+label: Access Door and Panel Warranty Period
+type: select
+options:
+ - "1 year from substantial completion — standard"
+ - "5 years from substantial completion — extended"
+default: "1 year from substantial completion — standard"
+```
+
+## The manufacturer shall warrant the access doors and panels against defects in materials and workmanship, including finish adhesion, latch and hinge operation, and — for fire-rated panels — conformance to the listed assembly, for the specified period.
+
+## The warranty shall not cover damage from abuse, improper field finishing, corrosive exposure beyond the rated material, or field modification of a listed fire-rated assembly.
+
+## The Contractor shall warrant the installation, including plumb and square setting, anchorage, finished flush condition of recessed and taping-flange panels, and self-closing and self-latching operation of fire-rated panels, for the specified period.