Most commercial building codes call for non-combustible material. Fire retardant lumber and plywood is ideal for these applications.
Advantages
- Ease of handling
- Meets or exceeds specifications
- No buckling or twisting in a fire

| Stock Sizes | |
| 2 x 4 | 8' - 16' long |
| 2 x 6 | 8' - 16' long |
| 2 x 8 | 8', 12', 14', 16' & 20' long |
| 2 x 10 | 12', 14', 16' & 20' long |
| 2 x 12 | 12', 14', 16' & 20' long |
| 1 x 4 | 12', 14', & 16' long |
| 1 x 6 | 12', 14', 16' long |
| Plywood | |
| 4 x 8 | 3/8" |
| 1/2" AC, BC & CD | |
| 5/8" BC & CD | |
| 3/4" AC, BC & CD | |
| 1 1/8" Sturdifloor | |