Siding Calculator
Calculate siding materials needed for walls and gables with precise area calculations
Calculate Siding Area
Wall Dimensions
Doors
Standard: 7 ft
Standard: 3 ft
Windows
Standard: 4 ft
Standard: 3 ft
Waste Factor & Cost Estimation
Recommended: 5-15%
Siding Calculation Results
Calculation Formula (Competitor Validated):
Project Analysis
Example Calculation
8m × 14m Wall with Openings (Competitor Example)
Wall dimensions: Height: 8m, Width: 14m
Openings: 1 door (2m × 0.9m) + 2 windows (1.2m × 0.9m each)
Waste factor: 5% for standard installation
Calculation Results
Wall area: 8m × 14m = 112 m²
Door area: 1 × (2 × 0.9) = 1.8 m²
Window area: 2 × (1.2 × 0.9) = 2.16 m²
Net area: 112 - 1.8 - 2.16 = 108.04 m²
With 5% waste: 108.04 × 1.05 = 113.44 m²
This matches the competitor's result of ~108 m² (our formula includes precise waste calculation)
Standard Dimensions
Doors
Windows
Popular Siding Types
Understanding Siding Calculations
How the Calculator Works
Our siding calculator uses the industry-standard formula validated against competitor calculations. The key is accurate area measurement, proper opening subtraction, and appropriate waste factors for optimal material estimation.
Key Calculation Steps
- •Wall Area: Height × Width (÷2 for gables)
- •Opening Area: Doors + Windows
- •Net Area: Wall Area - Opening Area
- •Total Siding: Net Area × (1 + Waste%)
Waste Factor Guidelines
Siding Squares
Installation Considerations
Material Planning:
- • Calculate accurately to minimize waste
- • Order 5-10% extra for future repairs
- • Consider color matching for future additions
Installation Tips:
- • Start from bottom and work upward
- • Ensure proper vapor barrier installation
- • Leave expansion gaps per manufacturer specs