Expansion Joint Calculator

Calculate expansion joint spacing and filler requirements for concrete structures

Input Parameters

Results

--
Expected Movement
in
--
Number of Joints
--
Joint Spacing
ft
--
Filler Material
ft²

Reference

Expansion = α × ΔT × L α (concrete) ≈ 5.5×10⁻⁶ per °F Typical spacing: 100-200 ft max