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Siding Coverage Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.

Formel

Squares = Exterior Area / 100 sf × 1.10 (10% waste)

Trin-for-trin guide

  1. 1Measure all exterior wall surfaces, subtract openings, add waste
  2. 2Apply the formula using your project measurements
  3. 3Add required safety factors or waste allowances per code

Løste eksempler

Input
1500 sf exterior, 200 sf windows/doors
Resultat
Squares = (1500-200)/100 × 1.10 = 14.3 squares

Almindelige fejl at undgå

  • Not applying code-required safety factors or derating
  • Forgetting to account for waste and cut losses in material estimates

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