Cable Tray Firestop Calculator
Calculate intumescent pillow count, wrap strips, and sealant for cable tray penetration firestopping.
Inputs
%
Results
Intumescent pillows
10
Opening area (sq ft)1
Wrap strips needed6
Edge sealant (fl oz)36
Exceeds 40% fill (0/1)0
Total installed cost ($)$368
How to Use This Calculator
- Enter Tray width (in), Tray height (in), and Cable fill (%).
- Set Wall thickness (in) and Fire rating (hrs).
- Review the Intumescent pillows result.
- Use Opening area (sq ft) and Wrap strips needed to inform your decision.
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