Siding Calculator

Calculate siding material needed for exterior walls. Estimate squares, panels, trim, and total cost.

Project Name *

What would you like to calculate? *

Wall Height (ft) *

Height of the wall

Wall Width (ft) *

Width of the wall

Number of Walls *

Total walls to cover

Opening Area (sq ft) *

Windows, doors, etc.

Siding Type *

Siding Width (in) *

Width of each siding board

Price per Square ($) *

Cost per square (100 sq ft)

Waste Factor (%) *

Add for cuts and waste

🏠 Siding Formulas:
Wall Area: Height × Width × Number of Walls • Siding Area: Wall Area - Openings • Squares: Siding Area / 100 • Boards: (Area × 12) / (Siding Width × 12)

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Siding Estimate

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Step-by-Step Calculation

Detailed siding analysis

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Siding Area

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sq ft

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Squares

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squares

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Boards

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boards

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Cost

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Material Details

Complete siding breakdown

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Formula Reference

Siding formulas

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Siding Tips

Choosing and installing siding

🏠 Construction Disclaimer: Siding calculations are estimates. Actual measurements and professional consultation are recommended. Results are for educational purposes.