Estimate reinforcement quantity, total steel length, steel weight, and rebar material requirements using contractor-grade rebar takeoff formulas.
Slab takeoff — 24×24 ft · 6 in · #4 @ 12 in OC · 1 layer
| Rebar Size | Total Bar Runs | Total Length | Est. Weight | Waste | Ordering |
|---|---|---|---|---|---|
| — | — | — | — | — | — |
24×24 ft, #4 @ 12 in.
20×40 ft, #4 @ 12 in.
40×30 ft, #5, 2 layers.
50×80 ft, #5, 2 layers.
This rebar estimating calculator builds a two-way grid takeoff for bid-ready steel takeoff numbers. Cross-check spacing with the rebar spacing calculator and mesh layout on the rebar grid calculator.
One continuous bar in one direction across the effective span. Total runs equals bars each way times layers.
Commercial orders often use tons; retail yards may price per stick. This tool shows both.
Wall preset uses face length and height as the grid footprint—verify vertical vs horizontal bar schedules on your detail.