Cable Tray Fill Calculator
Calculate cable tray fill ratio and sizing
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Preparing your construction tool...
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How to Use This Calculator
Tray size.
Cable list.
Fill %.
Understanding Cable Tray Fill Calculations
Heat dissipation.
Stacking.
NEC 392.
Weight.
Formula & Calculations
Sum(Cable Areas) / Tray Area
Key Factors to Consider
Single layer vs Random
Spacing
Ventilation
Support
Frequently Asked Questions
1Max fill?
Usually 40-50%.