| Item | Specification |
|---|---|
| Hanger wire (standard) | #12 ga. — 56 kg (125 lbs) safe load |
| Hanger wire (heavy) | #10 ga. — for heavy fixtures/gypsum-backed tiles |
| Wire spacing | Max 1200 mm o.c. along main runners |
| Wire at splices | Within 150 mm of every main-runner splice |
| Wire at fixtures | Within 150 mm each side of heavy items |
| Wire turns | Min. 3 full turns at each connection |
| Wall angle fastening | 400 mm o.c. max into studs or CMU |
| Grid level tolerance | ± 3 mm across room (CISCA) |
| Border tile minimum | ≥ 300 mm (half of 600 mm tile) |
| Plenum clearance | Min 75 mm above grid for tile insertion |
| Tile Type | NRC | CAC | Use |
|---|---|---|---|
| Standard Lay-In | 0.50–0.70 | 25–35 | Offices, corridors |
| Tegular (Reveal) | 0.55–0.75 | 30–40 | Fellowship halls, classrooms |
| High-NRC Acoustic | 0.80–0.95 | 35–42 | Music rooms, worship overflow |
| Concealed Spline | 0.50–0.65 | 25–35 | Lobbies (monolithic look) |
| Gypsum-Backed | 0.55–0.65 | 40–50 | Sound-sensitive adjacencies |
NRC: Sound absorption (higher = more). CAC: Sound blocking between rooms via plenum (higher = better).
| Accessory | Height (AFF) |
|---|---|
| Grab bars (side & rear) | 840–860 mm to centre |
| Soap dispenser | 900–1100 mm |
| Paper towel dispenser | 900–1200 mm |
| Hand dryer activation | 900–1100 mm |
| Mirror bottom edge | Max 1000 mm (accessible) |
| Coat hook | 1200 mm (accessible) |
| Baby change station (open) | 860 mm deck height |
| Max forward reach (AODA) | 1200 mm |
| Grade | Conc. Load | Application |
|---|---|---|
| CISCA Grade 1 | 1,000 N (225 lbs) | Offices, meeting rooms |
| CISCA Grade 2 | 2,000 N (450 lbs) | AV rooms, equipment racks |
| CISCA Grade 3 | 4,500 N (1,000 lbs) | Server rooms |