+---
+title: Telecommunications Rooms and Pathways
+category: Electrical
+toc_depth: 3
+description: >
+ When to use: Design and construction of dedicated telecommunications spaces and the pathway
+ systems that connect them within a building - Telecommunications Rooms (TR), Equipment Rooms (ER),
+ Entrance Rooms/Facilities (ERF), and Main/Intermediate Cross-Connect rooms (MDF/IDF) - together with
+ the interior pathways serving those spaces (conduit sleeves through walls and floors, cable trays,
+ ladder racks, J-hooks, surface raceways, and overhead support), and the room construction, backboards,
+ lighting, power, door, and environmental conditioning that make those spaces usable. Applies to new
+ construction and major renovation of commercial, institutional, multi-tenant, and light-industrial
+ buildings requiring a structured-cabling infrastructure.
+ Not intended for: horizontal cabling runs to work-area outlets and termination/labeling
+ ([[sync/structured-cabling]]); telecommunications bonding and grounding of racks and backboards
+ ([[sync/telecommunications-bonding]]); cable tray installed in general building spaces outside TR/ER
+ rooms ([[sync/cable-tray]]); conduit and raceway in general electrical corridors
+ ([[sync/raceways-and-conduit]]); electrical switchgear and distribution rooms
+ ([[sync/electrical-rooms]]); service-entrance and feeder conductors entering from outside
+ ([[sync/distribution-feeder-cables]]); outside-plant pathways between buildings; full data-center
+ build-outs with raised floor and precision CRAC cooling; and procurement of active network hardware.
+---
+
+# Scope {toc}
+
+## This standard covers the design and construction requirements for dedicated telecommunications spaces and the interior pathway systems that connect them within a single building.
+
+### Telecommunications spaces governed by this standard include the per-floor Telecommunications Room (TR), the building Equipment Room (ER), the Entrance Room or Facility (ERF), and the Main and Intermediate Cross-Connect rooms (MDF/MXC and IDF/IXC). {note}
+
+### Pathway systems governed by this standard include conduit sleeves through walls and floor slabs, cable trays, ladder racks, J-hooks and cable-support hooks, surface raceways, and overhead cable-support systems located within or directly serving those spaces. {note}
+
+### Room construction elements governed by this standard include enclosure fire-resistance, finishes, backboards, lighting, doors and clearances, dedicated power, and the environmental conditioning serving the spaces. {note}
+
+## Telecommunications spaces and pathways shall be designed and constructed in accordance with ANSI/TIA-569-E and its Addendum 1, the topology requirements of ANSI/TIA-568.1-D, and the applicable provisions of NFPA 70 (NEC) Articles 770 and 800.
+
+## The following work is excluded from this standard and is governed elsewhere. {note}
+
+- Horizontal cabling to work-area outlets, cable termination, and labeling - see [[sync/structured-cabling]].
+- Telecommunications bonding and grounding (TMGB, TGB, bonding conductors, busbar sizing and connection) - see [[sync/telecommunications-bonding]].
+- Cable tray installed in general building spaces outside TR/ER rooms for large cable runs - see [[sync/cable-tray]].
+- Conduit and raceway systems in general electrical distribution corridors - see [[sync/raceways-and-conduit]].
+- Electrical switchgear rooms, main electrical distribution rooms, and MV/LV panel rooms - see [[sync/electrical-rooms]].
+- Service-entrance conductors and feeder cables entering the building from outside - see [[sync/distribution-feeder-cables]].
+- Outside-plant (OSP) pathways - underground ductbanks, aerial, and direct-buried runs between buildings.
+- Data-center build-outs with raised-floor, precision CRAC cooling, and high-density compute.
+- Procurement of active network equipment (switches, routers, patch panels as hardware) - covered by IT procurement specifications.
+
+# Referenced Standards {toc}
+
+## Equipment, materials, and installation shall comply with the latest adopted edition of each of the following unless a specific edition is cited.
+
+## Where referenced standards conflict, the more stringent requirement shall govern unless the Engineer of Record directs otherwise in writing.
+
+| Standard | Title |
+|----------|-------|
+| ANSI/TIA-569-E (Addendum 1, 2022) | Telecommunications Pathways and Spaces |
+| ANSI/TIA-568.1-D | Generic Telecommunications Cabling for Customer Premises |
+| BICSI TDMM | Telecommunications Distribution Methods Manual |
+| ANSI/NECA/BICSI 568 | Standard for Installing Commercial Building Telecommunications Cabling |
+| NFPA 70 (Article 800) | National Electrical Code - General Requirements for Communications Systems |
+| NFPA 70 (Article 770) | National Electrical Code - Optical Fiber Cables and Raceways |
+| NFPA 101 | Life Safety Code |
+| NFPA 13 | Standard for the Installation of Sprinkler Systems |
+| ASHRAE Thermal Guidelines for Data Processing Environments (5th Edition, 2021) | Thermal Guidelines for Data Processing Environments |
+| IBC | International Building Code (current adopted edition) |
+| UL 2043 | Fire Test for Heat and Visible Smoke Release for Products Installed in Air-Handling Spaces |
+
+## TIA-568 governs cabling and TIA-569 governs pathways and spaces; the two numbers are distinct and both apply to this work. {note}
+
+## IEEE 569 addresses utility-substation spatial conditions and is not applicable to telecommunications spaces; it is named here only to prevent confusion with ANSI/TIA-569-E. {note}
+
+# Submittals {toc}
+
+## Action Submittals {toc}
+
+### The Contractor shall submit the following action submittals for review prior to fabrication and installation:
+
+- Shop drawings showing TR/ER room layouts with rack and cabinet positions, working clearances, and backboard coverage.
+- Pathway plans and sections showing ladder rack, cable tray, J-hook, and conduit-sleeve routing, sizes, and support spacing.
+- Product data for racks, cabinets, ladder rack, cable tray, J-hooks, surface raceway, and firestop systems.
+- Conduit-sleeve schedule listing quantity, size, location, and firestop assembly for each TR-to-TR and floor-penetration link.
+- Environmental conditioning design data including cooling capacity, setpoints, and 24/7 operating provisions.
+- Seismic bracing and anchorage details for racks, cabinets, and overhead pathway where required by the Seismic Design Category.
+
+```datasheet
+label: Action Submittals
+type: checkbox
+options:
+ - Room layout shop drawings
+ - Pathway plans and sections
+ - Product data (racks, pathway, firestop)
+ - Conduit-sleeve schedule
+ - Environmental conditioning design data
+ - Seismic bracing and anchorage details
+default:
+ - Room layout shop drawings
+ - Pathway plans and sections
+ - Product data (racks, pathway, firestop)
+ - Conduit-sleeve schedule
+```
+
+## Closeout Submittals {toc}
+
+### The Contractor shall submit the following closeout submittals prior to substantial completion:
+
+- Record drawings of as-built room layouts, pathway routing, and conduit-sleeve locations.
+- Firestop inspection records for every penetration through rated wall and floor assemblies.
+- Environmental conditioning startup, commissioning, and setpoint verification reports.
+- Operation and maintenance data for the dedicated cooling equipment.
+
+```datasheet
+label: Closeout Submittals
+type: checkbox
+options:
+ - Record drawings
+ - Firestop inspection records
+ - Conditioning commissioning reports
+ - O&M data for cooling equipment
+default:
+ - Record drawings
+ - Firestop inspection records
+ - Conditioning commissioning reports
+ - O&M data for cooling equipment
+```
+
+## Informational Submittals {toc}
+
+### The Contractor shall submit the following informational submittals:
+
+- Installer qualifications demonstrating BICSI-credentialed supervision of pathway and space installation.
+- Manufacturer installation instructions for ladder rack, cable tray, and firestop assemblies.
+- Field test reports for rack anchorage and overhead-pathway support where seismic bracing is required.
+
+```datasheet
+label: Informational Submittals
+type: checkbox
+options:
+ - Installer qualifications
+ - Manufacturer installation instructions
+ - Anchorage and bracing field test reports
+default:
+ - Installer qualifications
+ - Manufacturer installation instructions
+```
+
+# Quality Assurance {toc}
+
+## The installer shall hold current BICSI credentials or provide supervision by a BICSI-credentialed Registered Communications Distribution Designer (RCDD) for the design and layout of telecommunications spaces and pathways.
+
+## Pathway and space installation shall conform to ANSI/NECA/BICSI 568 installation practices, including bend-radius, support-spacing, and fill provisions.
+
+## Firestopping of penetrations through rated wall and floor assemblies is a coordination item among this standard, the fire-protection documents, and the general construction documents, and shall be resolved in shop drawings before any penetration is cut. {note}
+
+## All firestop systems shall be installed by an applicator trained by the firestop-system manufacturer and shall match a UL-listed assembly for the rating and penetrant involved.
+
+# Room Classification and Sizing {toc}
+
+## Room type drives size, structural load, and environmental requirements, and shall be established before any room is laid out. {note}
+
+### A Telecommunications Room (TR) is the per-floor space that terminates horizontal cabling and houses floor-serving equipment; an Equipment Room (ER) is the building or campus main space (MDF/MXC); an Entrance Room or Facility (ERF) is where outside-plant cabling enters the building. {note}
+
+### Applying the TR sizing table to an ER produces an undersized room; TIA-569-E provides separate tables for TR and ER, and the correct table for the room type shall be used. {note}
+
+## The room type shall be classified and sized in accordance with the applicable ANSI/TIA-569-E table for that room type.
+
+```datasheet
+label: Room Type
+type: radio
+options:
+ - Telecommunications Room (TR) - per-floor closet
+ - Equipment Room (ER) - building/campus MDF
+ - Entrance Room/Facility (ERF) - OSP entrance
+ - Intermediate Cross-Connect (IDF/IXC)
+default: Telecommunications Room (TR) - per-floor closet
+```
+
+## At least one Telecommunications Room shall be provided on each floor, and additional rooms shall be provided wherever the maximum horizontal cable run would otherwise be exceeded.
+
+### The maximum horizontal cable distance from the TR to any work-area outlet is 90 m (295 ft) per ANSI/TIA-568.1-D; this limit, not headcount, determines the maximum floor area a single TR can serve. {note}
+
+### Sizing a TR from headcount without verifying the 90 m cable-run rule leaves wings of the floor out of reach and is a common cause of stranded outlets. {note}
+
+```datasheet
+label: Maximum Floor Area Served per TR
+type: range
+unit: sq ft
+min: 5000
+max: 12000
+step: 500
+default: 10000
+```
+
+## Telecommunications Rooms serving stacked floors shall be vertically aligned floor-to-floor so that riser sleeves pass straight through the slab.
+
+### Where TRs are not stacked, riser sleeves must angle through the slab at steep bends that complicate the pull and can violate cable bend-radius limits. {note}
+
+## The Telecommunications Room minimum floor area shall be as scheduled, not less than the area required by ANSI/TIA-569-E for the served floor area.
+
+### TIA-569-E sets a 10 m² (108 sq ft) floor minimum for buildings up to 500 m² of served floor area, scaling upward; the common commercial-office case is approximately 150 sq ft for a single TR serving up to 10,000 sq ft of floor. {note}
+
+```datasheet
+label: TR Minimum Floor Area
+type: range
+unit: sq ft
+min: 108
+max: 300
+step: 6
+default: 150
+```
+
+## The room minimum clear ceiling height shall be as scheduled, not less than 2,440 mm (8 ft).
+
+### A 9 ft clear height is the common design case because it allows an overhead ladder rack plus the 1 ft of clearance required above the rack tops. {note}
+
+```datasheet
+label: Minimum Clear Ceiling Height
+type: range
+unit: ft
+min: 8
+max: 12
+step: 0.5
+default: 9
+```
+
+## Equipment shall be arranged for either a single-sided or double-sided layout as scheduled, with the front and rear working clearances required by NFPA 70 and NFPA 101 maintained at every rack and cabinet.
+
+```datasheet
+label: Equipment Layout
+type: radio
+options:
+ - Single-sided (equipment on one wall/row)
+ - Double-sided (equipment on two opposing rows)
+default: Single-sided (equipment on one wall/row)
+```
+
+# Room Construction and Finishes {toc}
+
+## The room enclosure shall be constructed to the fire-resistance rating required by the IBC for its occupancy and location, and all penetrations of rated assemblies shall be firestopped to maintain that rating.
+
+## Backboards shall be provided on the room walls to mount terminations, cross-connect hardware, and wall-mount equipment. {note}
+
+### Most authorities having jurisdiction require listed fire-retardant-treated (FRT) plywood or two coats of fire-retardant paint on all six surfaces; standard untreated plywood is commonly rejected. {note}
+
+## Backboards shall be 19 mm (3/4 in) A-C grade fire-retardant-treated plywood.
+
+## Backboards shall be securely fastened to the wall structure with the finished (A) face exposed and shall be field-painted white or left natural as scheduled.
+
+```datasheet
+label: Backboard Material
+type: radio
+options:
+ - 3/4 in A-C fire-retardant-treated plywood
+ - 3/4 in plywood with two coats fire-retardant paint (six surfaces)
+default: 3/4 in A-C fire-retardant-treated plywood
+```
+
+## Backboard wall coverage shall be as scheduled.
+
+### In an ER, all non-rack walls are commonly lined floor-to-ceiling; in a TR, a single full 4 ft x 8 ft sheet on one wall is the common minimum. {note}
+
+```datasheet
+label: Backboard Coverage
+type: radio
+options:
+ - One full 4x8 sheet on one wall (TR minimum)
+ - One full wall lined floor-to-ceiling
+ - All non-rack walls lined floor-to-ceiling (ER)
+default: One full 4x8 sheet on one wall (TR minimum)
+```
+
+## Room finishes shall be sealed to limit dust; floors shall receive a sealed or anti-static finish and shall not be carpeted.
+
+## A bonding busbar location shall be provided on the backboard for connection of rack and pathway bonding conductors.
+
+### Sizing, connection, and grounding-electrode-conductor requirements for the busbar (TMGB/TGB) are owned by [[sync/telecommunications-bonding]]; this standard requires only that the mounting location and backboard space be provided. {note}
+
+# Pathways {toc}
+
+## Interior pathways shall be selected, sized, and supported to carry the backbone and horizontal cabling between and within telecommunications spaces without exceeding fill or bend-radius limits. {note}
+
+## The pathway type within and between telecommunications spaces shall be as scheduled and as shown on the drawings.
+
+```datasheet
+label: Interior Pathway Type
+type: checkbox
+options:
+ - Overhead ladder rack
+ - Cable tray
+ - Conduit sleeves (floor/wall penetrations)
+ - J-hooks / cable-support hooks
+ - Surface raceway
+default:
+ - Overhead ladder rack
+ - Conduit sleeves (floor/wall penetrations)
+```
+
+## Ladder Rack and Cable Tray {toc}
+
+## Ladder rack and cable tray shall be galvanized steel or aluminum, sized for the installed cable bundle plus growth.
+
+## Ladder rack and cable tray fill shall not exceed 50% of the usable cross-sectional area per ANSI/TIA-569-E.
+
+### Designing to 40% fill rather than the 50% maximum is the common practice because it reserves capacity for moves, adds, and changes over the life of the room. {note}
+
+```datasheet
+label: Ladder Rack / Cable Tray Design Fill
+type: range
+unit: %
+min: 25
+max: 50
+step: 5
+default: 40
+```
+
+## Ladder rack and cable tray width shall be as scheduled.
+
+```datasheet
+label: Ladder Rack / Cable Tray Width
+type: select
+unit: in
+options:
+ - "12"
+ - "15"
+ - "18"
+ - "24"
+default: "12"
+```
+
+## Ladder rack and cable tray shall be supported at intervals not exceeding 1.5 m (5 ft) on center.
+
+### TIA-569-E requires a maximum 5 ft support spacing; general contractors commonly assume support at the structural bay (10 ft o.c.), which generates an RFI to add intermediate hangers. {note}
+
+```datasheet
+label: Ladder Rack / Tray Support Spacing
+type: range
+unit: ft
+min: 3
+max: 5
+step: 0.5
+default: 5
+```
+
+## J-Hooks and Cable Support {toc}
+
+## J-hooks shall support cable bundles only where ladder rack or tray is not provided, and shall not be used as the primary backbone pathway between rooms.
+
+## J-hooks shall be installed at a maximum spacing of 1.5 m (5 ft) on center.
+
+### A 4 ft on-center spacing is the common installed practice because it limits cable sag between supports below the value that distorts the bundle. {note}
+
+```datasheet
+label: J-Hook Spacing
+type: range
+unit: ft
+min: 3
+max: 5
+step: 0.5
+default: 4
+```
+
+## J-hook depth shall be sized for the installed bundle and shall maintain the cable manufacturer's minimum bend radius at every support.
+
+```datasheet
+label: J-Hook Depth
+type: select
+unit: in
+options:
+ - "1-1/2"
+ - "2"
+ - "3"
+default: "2"
+```
+
+## Conduit Sleeves and Floor Penetrations {toc}
+
+## Conduit sleeves shall connect stacked telecommunications spaces vertically and shall pass cabling through rated wall and floor assemblies. {note}
+
+## Conduit sleeves shall be a minimum of 4 in (102 mm) nominal inside diameter.
+
+## A minimum of four conduit sleeves shall be provided per TR-to-TR riser link.
+
+### Four sleeves is the TIA-569-E minimum; six to eight are common in practice once IT counts the cable types - voice backbone, data backbone, fiber riser, access control, AV, and CATV - that must be segregated. {note}
+
+```datasheet
+label: Conduit Sleeves per Riser Link
+type: range
+unit: each
+min: 4
+max: 8
+step: 1
+default: 4
+```
+
+```datasheet
+label: Conduit Sleeve Nominal Inside Diameter
+type: select
+unit: in
+options:
+ - "4"
+ - "5"
+ - "6"
+default: "4"
+```
+
+## Conduit sleeves shall be located near a room corner in a grouped pattern, positioned and routed as shown on the drawings. The sleeve layout location is shown at [[drawing: TR riser sleeve location]].
+
+### The common arrangement is four 4 in conduits installed in a 2 x 2 pattern near the room corner so the riser stack does not encroach on rack working clearance. {note}
+
+## Each conduit sleeve shall be furnished with a pull string of not less than 90 kg (200 lb) tensile rating.
+
+### Missing pull strings stop the cabling contractor at the first riser and are a routine cause of schedule delay. {note}
+
+## Every conduit sleeve through a rated assembly shall be firestopped with a UL-listed firestop sleeve assembly or intumescent collar.
+
+### Fire-rated floor and wall assemblies require a listed firestop at every penetration; an un-firestopped sleeve defeats the rated assembly and fails inspection. {note}
+
+```datasheet
+label: Conduit Sleeve Firestop Method
+type: radio
+options:
+ - Fire-rated sleeve assembly with intumescent insert
+ - Foam-and-intumescent collar (re-enterable)
+default: Fire-rated sleeve assembly with intumescent insert
+```
+
+## Surface Raceway {toc}
+
+## Surface raceway shall be provided only where cabling is exposed on finished walls and no concealed pathway is available, and shall maintain the cable bend radius at all fittings.
+
+# Racks and Cabinets {toc}
+
+## Racks and cabinets shall be 19 in EIA standard, sized for the equipment served plus rack-unit growth, and arranged for the working clearances required by NFPA 70 and NFPA 101. {note}
+
+## The rack or cabinet type shall be as scheduled.
+
+```datasheet
+label: Rack / Cabinet Type
+type: radio
+options:
+ - Wall-mount open-frame rack (2-post)
+ - Free-standing open-frame rack (4-post)
+ - Enclosed floor-standing cabinet
+ - Wall-mount enclosure/cabinet
+default: Free-standing open-frame rack (4-post)
+```
+
+## The rack or cabinet usable height (rack units) shall be as scheduled.
+
+```datasheet
+label: Rack / Cabinet Height
+type: select
+unit: U
+options:
+ - "18"
+ - "42"
+ - "45"
+ - "48"
+default: "45"
+```
+
+## Free-standing racks and cabinets shall be anchored to the floor structure by the manufacturer's approved anchorage method.
+
+### Unanchored free-standing racks tip during front-of-rack maintenance; in seismic zones the AHJ may withhold the certificate of occupancy without approved rack anchorage details. {note}
+
+## In IBC Seismic Design Category C and above, racks, cabinets, and overhead pathway shall be seismically braced and anchored in accordance with the structural drawings.
+
+```datasheet
+label: Seismic Bracing Required
+type: radio
+options:
+ - "No (Seismic Design Category A or B)"
+ - "Yes (Seismic Design Category C or above)"
+default: "No (Seismic Design Category A or B)"
+```
+
+# Environmental and Service Conditions {toc}
+
+## Telecommunications spaces shall be conditioned to maintain the temperature and humidity required for continuous operation of the installed active equipment. {note}
+
+### The typical design class for a commercial TR is ASHRAE Class A1, not the wider data-center classes; TIA-569-E Addendum 1 aligns its environmental setpoints with ASHRAE's 5th edition. {note}
+
+## Temperature {toc}
+
+## The space shall be maintained within the ASHRAE Class A1 inlet range of 18 °C to 27 °C (64 °F to 80 °F).
+
+## The cooling system shall be controlled to a design setpoint as scheduled.
+
+```datasheet
+label: Temperature Design Setpoint
+type: range
+unit: °F
+min: 64
+max: 80
+step: 1
+default: 72
+```
+
+## Humidity {toc}
+
+## The space shall be maintained within a dew point of 5.5 °C to 15 °C (42 °F to 59 °F) per ANSI/TIA-569-E Addendum 1.
+
+## The space relative humidity shall be maintained within the scheduled design band.
+
+```datasheet
+label: Relative Humidity Design Band
+type: range
+unit: %
+min: 30
+max: 60
+step: 5
+setpoints: [45, 55]
+default: 50
+```
+
+## Cooling System {toc}
+
+## A dedicated conditioning unit drives whether the room stays within range when the building system is off; this selection shall be made deliberately and not left to the building HVAC by default. {note}
+
+### Building VAV systems are commonly shut down nights and weekends; an interior TR with no exterior wall served only by building HVAC will overheat without 24/7 cooling. {note}
+
+## The space conditioning source shall be as scheduled.
+
+```datasheet
+label: Conditioning Source
+type: radio
+options:
+ - Dedicated split-system HVAC (24/7 duty)
+ - Building HVAC with supplemental cooling
+ - Building HVAC only (perimeter room with exterior wall)
+default: Dedicated split-system HVAC (24/7 duty)
+```
+
+## A dedicated 24/7 conditioning unit shall be provided where the telecommunications space is an interior room without an exterior wall.
+
+## The cooling capacity shall be sized against the actual equipment heat load and shall not be less than the scheduled rule-of-thumb allowance per rack or cabinet.
+
+### The 500 to 750 BTU/hr per rack rule-of-thumb is a starting allowance only; the installed-equipment heat load governs and shall be verified against the IT load schedule. {note}
+
+```datasheet
+label: Cooling Allowance per Rack/Cabinet
+type: range
+unit: BTU/hr
+min: 500
+max: 750
+step: 50
+default: 750
+```
+
+## Sprinkler Protection {toc}
+
+## Sprinkler coverage shall be coordinated with the fire-protection documents per NFPA 13. {note}
+
+### Silence on sprinkler type defaults the room to wet-pipe; some owners require pre-action or dry-pipe to protect equipment from incidental discharge, and the requirement shall be stated explicitly. {note}
+
+## The sprinkler system type serving the telecommunications space shall be as scheduled.
+
+```datasheet
+label: Sprinkler System Type
+type: radio
+options:
+ - Wet-pipe (default building system)
+ - Pre-action (double-interlock)
+ - Dry-pipe
+default: Wet-pipe (default building system)
+```
+
+# Lighting {toc}
+
+## Lighting shall provide a maintained illuminance adequate for terminating and servicing cabling at the rack and backboard. {note}
+
+### A specification that says only "provide lighting" without a maintained illuminance commonly yields a single lamp, forcing the technician to work by flashlight. {note}
+
+## Lighting shall provide a minimum maintained illuminance of 500 lux (50 fc) at a 760 mm (30 in) work plane above finished floor, measured per BICSI TDMM.
+
+```datasheet
+label: Maintained Illuminance
+type: range
+unit: lux
+min: 500
+max: 750
+step: 50
+default: 500
+```
+
+## Luminaires shall be LED and shall be positioned to illuminate the front and rear of racks and the full backboard without being blocked by overhead pathway.
+
+### Two 2-lamp LED troffers serve a typical 10 ft x 12 ft TR; larger rooms scale the count to hold the illuminance at the work plane. {note}
+
+# Power {toc}
+
+## Telecommunications spaces shall be served by dedicated branch circuits that are not shared with building, lighting, or janitorial loads. {note}
+
+### Sharing TR outlets with janitor or building circuits causes nuisance tripping and violates NEC best practice for critical loads. {note}
+
+## A minimum of two dedicated 20 A, 120 V duplex receptacles shall be provided on each wall of the room.
+
+## One dedicated 20 A circuit shall be provided at each rack or cabinet position.
+
+## Power receptacles and communications cabling shall maintain the separation required by NFPA 70 Article 800.
+
+```datasheet
+label: Dedicated Duplex Receptacles per Wall
+type: range
+unit: each
+min: 2
+max: 4
+step: 1
+default: 2
+```
+
+```datasheet
+label: Branch Circuit Rating
+type: select
+unit: A
+options:
+ - "20"
+ - "30"
+default: "20"
+```
+
+# Doors and Access {toc}
+
+## The room door shall provide a minimum 914 mm (36 in) clear opening and a minimum 2,032 mm (80 in) height.
+
+## The door shall be solid-core or hollow-metal and shall be fire-rated to match the enclosure rating where the wall is rated.
+
+## The door shall swing out into the corridor where egress and clearance permit.
+
+### An inswing door reduces usable room area and can conflict with the front-of-rack working clearance; outswing is preferred where the corridor and egress allow it. {note}
+
+## The door hardware shall be as scheduled.
+
+```datasheet
+label: Door Lock Type
+type: radio
+options:
+ - Keyed cylinder
+ - Proximity-card / access-control reader
+ - Keyed cylinder with access-control reader
+default: Keyed cylinder with access-control reader
+```
+
+```datasheet
+label: Door Swing
+type: radio
+options:
+ - Outswing into corridor (preferred)
+ - Inswing into room
+default: Outswing into corridor (preferred)
+```
+
+# Installation {toc}
+
+## Pathways and spaces shall be installed in accordance with ANSI/NECA/BICSI 568 and the manufacturer's instructions.
+
+## Cables routed in pathways that penetrate environmental-air plenums shall be plenum-rated (CMP) in accordance with NFPA 70 Article 800.24.
+
+### A standard TR is not itself a plenum, but where a pathway penetrates into a plenum space the penetrating cable must be plenum-rated. {note}
+
+## Communications cabling and pathways shall maintain the separation from power circuits required by NFPA 70 Article 800.
+
+## Optical fiber cables and raceways shall be installed in accordance with NFPA 70 Article 770.
+
+## Bend radius shall be maintained at every support, fitting, sleeve, and termination per the cable manufacturer's instructions and ANSI/NECA/BICSI 568.
+
+## All penetrations of rated wall and floor assemblies shall be firestopped to the rating of the assembly using a UL-listed system before the work is concealed.
+
+# Testing {toc}
+
+## Rack and cabinet anchorage shall be field-verified against the approved anchorage details prior to loading equipment.
+
+## Where seismic bracing is required, overhead-pathway and rack bracing shall be inspected and documented before the cabling installation proceeds.
+
+## Each firestopped penetration shall be inspected and recorded against the listed firestop assembly.
+
+## Environmental conditioning shall be commissioned and the temperature and humidity setpoints verified under load before substantial completion.
+
+# Delivery, Storage, and Handling {toc}
+
+## Racks, cabinets, ladder rack, cable tray, and backboard materials shall be delivered in the manufacturer's original packaging and stored under cover, protected from moisture and physical damage.
+
+## Fire-retardant-treated plywood shall be kept dry and shall not be installed if it shows signs of water damage or delamination.
+
+## Firestop materials shall be stored within the temperature range stated by the manufacturer and shall not be used past their shelf life.
+
+# Warranty {toc}
+
+## The Contractor shall warrant pathway and space materials and installation against defects in materials and workmanship for the scheduled warranty period.
+
+```datasheet
+label: Warranty Period
+type: range
+unit: years
+min: 1
+max: 5
+step: 1
+default: 1
+```
+
+# Spare Parts {toc}
+
+## The Contractor shall furnish spare J-hooks, mounting hardware, and firestop materials in the scheduled quantity for owner maintenance.
+
+```datasheet
+label: Spare J-Hooks and Supports
+type: range
+unit: % of installed
+min: 0
+max: 10
+step: 1
+default: 5
+```