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📏 Rebar Spacing Calculator

Estimate reinforcement bar count and actual spacing.

Enter your values

Results are preliminary estimates. Use project-specific specifications, drawings, product data and local requirements for final decisions.

Result

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    Calculator guide

    How this calculator works

    Bars ≈ ceil(Effective width ÷ Spacing) + 1

    Formula

    Bars ≈ ceil(Effective width ÷ Spacing) + 1

    Important limitation

    This is a layout aid and not reinforcement design.

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    Important: 5iBuild calculations are general estimates. Verify drawings, specifications, product data, local rates and applicable codes or regulations before construction or procurement.