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Ridge Cap Calculator

Calculate ridge and hip cap material needed. Get linear feet and bundle count for asphalt ridge cap shingles.

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Calculator

ft

Main ridge (peak) length

ft

Total hip ridge length (0 for gable)

%

5-15% for cuts and transitions

Ridge Cap Calculation

Total LF = (Ridge + Hip) × (1 + Waste%)

Add waste for cuts

Bundles = Total LF ÷ 33.3

Most bundles cover ~33.3 linear ft

Ridge cap bundles typically cover 33 linear feet. Hip roofs need more cap than gable roofs. Add 10% waste for cuts at transitions; use 15% for steep or complex roofs.

Reference: ARMA, manufacturer specs

Frequently Asked Questions