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Calcimator

Expansion Joint Gap Calculator

Calculate sealant volume, packing depth, and system type for expansion joint firestop based on gap width and movement.

Inputs

Results

Width-to-depth ratio

2

Movement (%)25%
Packing depth (in)5
Sealant volume (fl oz)398.9
Cartridges (20 oz)20
System type (1-3)2
Material Cost$236.04
How to Use This Calculator
  1. Enter Gap width (in), Joint length (ft), and Expected movement (in).
  2. Set Fire rating (hrs) and Gap depth (in).
  3. Review the Width-to-depth ratio result.
  4. Use Movement (%) (%) and Packing depth (in) to inform your decision.
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