What is Type A roof deck?
Type A roof deck dimensions and specs
Industry designations
- Type A Deck
- Narrow Rib
- NR
Gauge
- 22
Finishes
- Primed Gray (protects the base steel in a properly enclosed, dry environment)
- G60 Galvanized (protects the base steel in more aggressive interior environments or areas where greater corrosion resistance is required)
Maximum construction span
| No. of Spans | Deck Type | Max Const. Span |
|---|---|---|
| 1 | A22 A20 A18 | 3′-9″ 4′-8″ 6′-0″ |
| 2 or more | A22 A20 A18 | 4′-7″ 5′-3″ 6′-0″ |
