Firestop Pillow Calculator
Calculate intumescent pillow count, layers, and cost from opening dimensions and void percentage.
Inputs
%
Results
Total pillows
10
Void area (sq in)173
Pillows per layer10
Layers needed1
Total weight (lbs)10
Estimated cost ($)$90
Staggered0
How to Use This Calculator
- Enter Opening width (in), Opening height (in), and Void percentage (%).
- Set Pillow size (1-3) and Wall thickness (in).
- Review the Total pillows result.
- Use Void area (sq in) and Pillows per layer to inform your decision.
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