Siding Calculators
Get your exterior right with accurate siding estimates. Our siding calculators convert your home's dimensions into wall area, squares, and installed cost across vinyl, fiber-cement, engineered wood, and brick. Find the tools and material cost comparisons below.
Siding calculators
What you can estimate
- Wall area and siding squares
- Cost by siding material
- Waste for corners and openings
- Vinyl vs fiber-cement pricing
How to estimate siding
Siding is measured in squares, where one square covers 100 square feet of wall. Find your wall area by multiplying the home's perimeter by its height, then add 10% for simple walls or 15% for homes with lots of corners, gables, and openings that create more cut waste. Divide the total by 100 to get squares — the unit siding is ordered and priced in.
Our siding calculator turns your home's dimensions into wall area, squares, and an installed cost across vinyl, fiber-cement, engineered wood, and brick, so you can compare materials and budget accurately before getting quotes.
Siding material comparison
Siding choices range from budget vinyl to premium brick veneer. Each balances upfront cost, durability, and maintenance differently.
| Material | Cost / ft² (installed) | Lifespan | Best for |
|---|---|---|---|
| Vinyl | $4 – $8 | 20–40 yrs | Budget, low maintenance |
| Engineered wood | $5 – $11 | 20–30 yrs | Wood look, lighter |
| Fiber-cement | $6 – $13 | 30–50 yrs | Durability, fire zones |
| Brick veneer | $10 – $20 | 75+ yrs | Premium, longevity |
Siding tips
- Measure gable ends separately — a simple perimeter × height misses them.
- Budget for trim, J-channel, corner posts, and starter strip.
- Always install house wrap behind siding to manage moisture.
- Fiber-cement is worth the premium in fire-prone or humid regions.