S F Johnson Consulting, LLC
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Division 10

Division 10

🧩 Division 10 — Specialties

Toilet Compartments & Accessories • Fire Extinguishers/Cabinets • Lockers • Visual Display Boards • Corner/Crash Protection • Operable/Accordion Partitions • Signage • Louvers/Grilles • Access Panels. Verify ADA, IBC, NFPA 10, and project specs. Dimensions below are field rules-of-thumb—project details govern.

🧭 Scope (What Div 10 Covers)

  • Restroom specialties: toilet partitions, screens, and accessories (TPD, towel/soap, mirrors, grab bars, hooks, baby stations).
  • Fire protection specialties: extinguishers & cabinets, signage/labels.
  • Lockers & shelving, visual display boards (marker/tack), projection screens.
  • Wall/door protection: corner guards, crash rails, bumper guards, kick plates.
  • Operable partitions & accordion doors; signage (interior, ADA tactile/Braille).
  • Misc.: louvers/grilles, access panels, flagpoles, storage specialties.

📚 Key Standards (Quick)

  • ADA 2010 (609, 604, 703): grab bars, toilet rooms, signage.
  • NFPA 10: portable fire extinguishers (types, mounting, spacing).
  • ANSI A156 (hardware refs), ASTM product standards per item.
  • AWC/GA where specialty interfaces with substrates (blocking/backing).

🚻 Toilet Partitions (Types & Mounting)

  • Materials: Powder-coated steel, HDPE/solid plastic, phenolic, stainless steel, laminate.
  • Mounting: Floor-mounted/overhead braced (most common), ceiling-hung (cleaning), floor-to-ceiling (high abuse).
  • Hardware: Out-swing ADA doors, emergency lift-off hinges, occupancy indicators, privacy gap trims.

♿ ADA Layout Essentials (Verify Locally)

  • Wheelchair stall: 60" min width; depth 56" (wall-hung WC) or 59" (floor-mounted).
  • Door clear: 32" min at 90°; out-swing preferred; latch side clearance.
  • Toe clearance: 9" high × 17–25" deep under front/side panel (where applicable).
  • Ambulatory stall: 35–37" wide × 60" deep; grab bars on both sides.
  • Turning: 60" dia circle or T-turn in room if required.

🧲 Grab Bars (ADA 609)

  • Height: 33–36" AFF to top of bar; Ø 1¼–2"; 1½" wall clearance.
  • Side wall: 42" min long, starting ≤12" from rear wall, extending ≥54" from rear wall.
  • Rear wall: 36" min, centered on WC (12" min one side, 24" min other).
  • Blocking: continuous plywood or metal plate backing at locations.

📏 Mounting Heights (Typical — ADA Operable Parts ≤ 48" AFF)

Toilet paper (ADA)
7–9" forward of WC CL; 15–48" AFF to outlet.
Seat cover / Towel disp.
48" max to operable part.
Soap dispenser
48" max; 15" min AFF.
Hand dryer
Operable ≤48" AFF; observe 4" protrusion rule.
Mirror
Bottom of reflecting surface ≤40" AFF (full-length exempt).
Coat hook
≤48" AFF.
Baby change
Work surface 28–34" AFF (per mfr.); operable ≤48".
Grab bars
33–36" AFF.

Protruding objects: between 27"–80" AFF, objects may project ≤4" into circulation paths.

🧯 Fire Extinguishers & Cabinets (NFPA 10)

  • Common type: ABC 2A:10B:C (5 lb) in light hazard; verify hazard class.
  • Travel distance: Class A ≤75'; Class B 30–50' (hazard); Class K ≤30'.
  • Mounting: ≤40 lb → top ≤5'-0" AFF; >40 lb → top ≤3'-6" AFF; bottom ≥4" AFF.
  • Cabinets: semi-recessed or recessed to satisfy 4" protrusion rule; labels & ID signs.

🚪 Signage (ADA 703)

  • Tactile text & Braille: 48–60" AFF baseline range; mount on latch-side wall, outside swing arc.
  • Pictograms require 6" high field; Braille below text; non-glare, high contrast.
  • Directional/overhead signs not tactile; follow wayfinding plan.

🧱 Corner/Crash Protection

  • Corner guards: 2" legs (typ.), heights 4', 8', or full; adhesive vs mechanical fasten.
  • Crash/buffer rails: height 30–36" AFF; end caps & returns; coordinate backing.
  • Kick/mop plates: sizes 8"/10"/12" on push side; match hardware finish.

🔒 Lockers (Types & Layout)

  • Body: steel, phenolic, HDPE (wet areas). Tiers: single, double, triple; z-lockers for bags.
  • Bases: 4" or 6" recessed; sloped tops reduce dust. Vent patterns per use.
  • ADA: at least one accessible section — reach ≤48" to operable parts; bench clearances 30"×48" min alongside.

🖊️ Visual Display Boards

  • Markerboards: common bottom heights 34–36" AFF (classrooms) or 40–42" general; ensure reach for ADA.
  • Tackboards: mount above markerboard or corridors at 48" max to top for accessibility zones.
  • Verify wall flatness; continuous backing; trim/joint covers aligned.

🧱 Operable / Accordion Partitions

  • STC ratings per program; perimeter seals, sill sweeps, closure panels.
  • Overhead track support: verify structure load & deflection; no MEP conflicts in pocket.
  • Life safety: sprinkler/smoke curtains as required; egress hardware where applicable.
  • Storage pockets: lined, protected edges; floor levelness critical.

🧮 Quick Math & Takeoff Shortcuts

Partition Count (ROM)

Stalls = fixture count plan. If ≥6 stalls → add one ambulatory stall + one wheelchair stall.

Panel/Screen Takeoff

LF = sum of pilasters + panels. Doors: 24" (std), 36" (ADA). Hardware sets per door.

FE Quantity

Start with 1 per 3,000 SF and travel distance limits; adjust for hazards/risk areas.

Corner Guards

Qty = count of exposed corridor corners × height option (4', 8', full). Add adhesive/fasteners per mfr.

Signage Count

Room ID at each occupiable room; egress/wayfinding per plan; restroom IDs (tactile + symbol + door symbol where required).

Locker Rows

Row length ÷ (locker width + filler). Add ends, sloped tops, trim kits, number plates, locks.

✅ Submittals & Coordination

  • Shop drawings for partitions (plans/elevations/anchor details), accessories matrix with mounting heights.
  • FE data: size/rating, cabinet type (recessed/semi), glazing, decals; location plan w/ travel distances.
  • Signage schedule (message/room #/type) + font, color, tactile/Braille proofs.
  • Backing diagrams for grab bars, accessories, crash rails, operable partition tracks.

🦺 Safety Notes

  • Locate utilities before drilling anchors in tiled walls; use proper bits and PPE (silica control).
  • Handle glass/mirrors with edge protection; use safety-backed mirrors where specified.
  • Lockout/tagout for electrified hand dryers; hot-work permits for metal cutting where needed.

📝 Self Test

  1. What are the ADA height and diameters for grab bars?
  2. List the min width/depth for a wheelchair toilet compartment.
  3. Where do you measure the 4" protruding object rule?
  4. NFPA 10 top-of-extinguisher mounting limits for ≤40 lb and >40 lb units?
  5. Minimum travel distance coverage for Class A extinguishers?
  6. What are two structural/coordination checks for operable partition tracks?
  7. Toilet paper dispenser location relative to WC centerline?
  8. Basic signage mounting zone for tactile/Braille room IDs?
  9. Name two common partition materials for wet/abuse-prone restrooms.
  10. How many ambulatory stalls are required when a restroom has 7 total stalls?

Answers: (1) 33–36" AFF, Ø 1¼–2", 1½" wall clearance. (2) 60" wide; depth 56" (wall-hung) or 59" (floor-mounted). (3) Objects between 27"–80" AFF may project ≤4" into paths. (4) ≤40 lb → top ≤ 5'-0"; >40 lb → top ≤ 3'-6"; bottom ≥4" AFF. (5) ≤ 75' travel for Class A (verify hazard). (6) Structure load/deflection & clear pocket free of MEP/sprinklers (plus egress/safety). (7) 7–9" forward of WC CL; outlet 15–48" AFF. (8) Baseline 48–60" AFF on latch-side wall, outside door swing. (9) HDPE/solid plastic and phenolic (also stainless). (10) One wheelchair stall + one ambulatory stall (≥6 stalls → add ambulatory).