Calculate concrete volume and reinforcement for round and rectangular columns.
| Column Size | Min Rebar (ACI 318) | Typical Use | Cu Yd per 10ft |
|---|---|---|---|
| 8" round | 4 - #4 | Light residential, deck posts | 0.13 |
| 10" round | 4 - #4 | Residential, light commercial | 0.20 |
| 12" round | 4 - #5 | Standard residential/commercial | 0.29 |
| 16" round | 6 - #5 | Heavy commercial | 0.52 |
| 12"×12" square | 4 - #5 | Standard structural | 0.37 |
| 16"×16" square | 6 - #6 | Heavy structural | 0.66 |
| 18"×18" square | 8 - #6 | Multi-story commercial | 0.83 |
| 24"×24" square | 8 - #8 | High-rise, industrial | 1.48 |