| Choice of Metals |
| ALUMACAST |  | Corrosion resistant, maintenance-free aluminum alloy for exterior and interior use. |
| lFERACAST |  | Cast iron all purpose usage. Withstands heavy industrial punishment. |
| BRONZACAST |  | Rich bronze finish makes this an ideal choice when fine architectural effects must be achieved and maintained. |
| NICKELCAST |  | A combination of cast nickel and bronze designed to blend with stainlesss steel architecture. |

|
| Tread Width - - - (Holes in end lugs for 1/2" diameter bolts) |
| 4" | 1 3/8" | 1 1/4" | 1 3/8" |
| 5" | 1 1/2" | 2" | 1 1/2" |
| 6" | 1 1/2" | 3" | 1 1/2" |
| 7" | 1 3/4" | 3 1/2" | 1 3/4" |
| 8" | 2" | 4" | 2" |
| 9" | 2" | 5" | 2" |
| 10" | 2" | 6" | 2" |
| 11" | 2" | 7" | 2" |
| 12" | 2" | 8" | 2" |