Rebar Calculator
Estimate a simple rebar grid for rectangular slabs. Enter slab dimensions and bar spacing to get total bars, linear feet, and weight.
| Slab Length | feet | |
| Slab Width | feet | |
| Spacing | inches (common: 12" or 16") | |
| Rebar Size | ||
| Bars along length: | 11 |
| Bars along width: | 11 |
| Total linear feet: | 220.0 |
| Approx weight (#4): | 147.0 lb |