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Rebar Calculator
Calculate rebar grid quantities, linear footage, and standard 20ft sticks
Rebar Grid Standard: Rebar quantities are calculated for a two-way grid pattern (lengthwise and widthwise bars) based on specified spacing on center (OC). Includes a 10% lap splice and waste allowance.
Slab Dimensions & Spacing
Calculation Results
⚠️ Rebar placement requires proper chairs or bolsters to maintain concrete cover (typically 2-3 inches from bottom/sides). Always verify structural engineering design and local building codes.