🏠 Siding Calculator

⚙️ Settings

📐 Wall Dimensions

Add each wall's dimensions. Select "Triangle" for gable end walls.

🚪 Door & Window Openings

Add openings that don't need siding (doors, windows, vents).

💰 Cost Estimate

📊 Results

🖼️ Wall Layout Preview

❓ Frequently Asked Questions

What waste factor should I use for siding?

A 10% waste factor is recommended for most projects. For complex walls with many corners or openings, use 12-15%. For simple rectangular walls, 7-8% may suffice.

How much is a square of siding?

In the siding industry, one square equals 100 square feet (about 9.29 square meters). Siding materials are typically sold by the square.

How do I calculate siding for a gable?

A gable is typically triangular. The area equals base width times height divided by 2. Select the triangle wall type in the calculator and enter the base width and height.

Is fiber cement siding more expensive than vinyl?

Yes, fiber cement siding (like Hardie board) typically costs 2-3 times more than vinyl siding. Vinyl runs about $5-10 per sq ft, while fiber cement runs $12-20 per sq ft. However, fiber cement is more durable and fire-resistant.