Roofing Tools

Shingle Bundle Calculator

Calculate shingle bundles, squares, underlayment, ridge caps, and starter strips needed for your asphalt shingle roof project.

Roof Specifications

Material Estimate

Roofing Squares 0 squares
Shingle Bundles 0 bundles
Adjusted Roof Area 0 sq ft
Underlayment Rolls 0 rolls
Ridge Cap Bundles 0
Starter Strip Bundles 0
Drip Edge (feet) 0 ft
Est. Material Cost $0

Coverage Guide

  • 3-Tab: 33.3 sq ft/bundle
  • Architectural: 32.8 sq ft/bundle
  • Designer: 25 sq ft/bundle
  • Square: 100 sq ft (3 bundles 3-tab)

Formula

Squares = Area ÷ 100 × Pitch × Complexity

Bundles = Squares × 3 × (1 + Waste%)

Ridge = Linear ft ÷ 25 ft/bundle

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