Concrete Rebar Spacing Calculator — ACI 318

Input Parameters

Project Information

Project Name

Engineer

Checked By

Project No.

Date

Member & Bar

Member Type

Bar Size

Bar Layout

Layout Mode

Number of Bars per Layer

Target Center-to-Center Spacing (in)

Geometry & Cover

Member Width, b (in)

Clear Cover (in)

To face of stirrup/tie, or to bar if none

Stirrup / Tie Size

Max Aggregate Size (in)

Reinforcement Layers

Number of Layers

Crack Control (Optional)

Check maximum spacing for crack control — ACI 318-19 §24.3.2 (tension reinforcement, beams & one-way slabs)

Notes

Remarks

Enter parameters and click Calculate to see results