Fassadenverkleidung-Rechner — Formel
## How to Calculate Siding
### Formula
**Net Area = (Perimeter × Height) - (Doors × 21 sq ft) - (Windows × 15 sq ft)**
**Siding Needed = Net Area × (1 + Waste %)**
Siding is often sold in "squares" (100 sq ft). Vinyl siding panels typically cover about 2 squares (200 sq ft) per box. Lap siding exposure varies by product.
### Formula
**Net Area = (Perimeter × Height) - (Doors × 21 sq ft) - (Windows × 15 sq ft)**
**Siding Needed = Net Area × (1 + Waste %)**
Siding is often sold in "squares" (100 sq ft). Vinyl siding panels typically cover about 2 squares (200 sq ft) per box. Lap siding exposure varies by product.
Lösungsbeispiel
A house with 160 ft perimeter, 9 ft walls, 3 doors, 12 windows, 10% waste.
- Gross area = 160 × 9 = 1,440 sq ft
- Openings = 3 × 21 + 12 × 15 = 63 + 180 = 243 sq ft
- Net area = 1,440 - 243 = 1,197 sq ft
- With 10% waste = 1,197 × 1.10 = 1,317 sq ft
- Siding squares = 1,317 / 100 = 13.2 squares