Square Footage & Materials Cost Calculator
Calculate total square footage for multiple rooms or outdoor areas, estimate flooring/materials cost, and include standard cutting waste margins.
For a quick square feet calculation, multiply length by width for rectangular areas or use pi times radius squared for circular areas.
Area & Cost Estimation Summary
Total Net Area:420.00 sq ft
Total Area with Waste Margin (0%):420.00 sq ft
Estimated Materials Cost:$0.00
Room Dimensions Breakdown
| Room Name | Shape / Size | Area (sq ft) | Action |
|---|---|---|---|
| Living Room | 15'0" × 20'0" | 300.00 | |
| Kitchen | 10'0" × 12'0" | 120.00 |
Frequently Asked Questions
Why should I add a waste margin to my materials estimate?
Standard flooring and tile installations require cutting materials to fit room edges. A 10% waste margin is recommended for rectangular layouts, and 15% is recommended for diagonal layouts.
How is square footage calculated for a circle?
The area of a circle is A = π × r², where r is the radius in feet.