Wall area in, siding squares and installed cost out — for vinyl, fiber cement, wood, or metal. Then send it straight into a quote.
Ballpark, not gospel. This estimates siding squares, materials, and labor from the numbers you punch in — always verify against your supplier's specs and your own measurements before ordering or quoting.
Straight answers, no fluff. Then run your own numbers above.
Measure each exterior wall (length × height), add them up, subtract about 15% for windows and doors, then divide by 100 — one square covers 100 sq ft. A 1,800 sq ft wall area with typical openings needs about 15.3 squares before waste; add 10% waste for cuts.
Installed, vinyl runs roughly $8–$12 per sq ft, fiber cement $12–$18, wood/cedar $15–$22, and metal $12–$16. Material alone is about half of that. The calculator above breaks out materials vs. labor for each type.
10% is the standard for straightforward walls. Bump to 15% for houses with lots of gables, dormers, or angled cuts — every angle eats a board.
Vinyl wins on price and speed; fiber cement wins on durability, fire resistance, and perceived value. In 2026, fiber cement is the most common upsell — quote both and let the homeowner choose.
Got your numbers? Turn this estimate into a professional siding quote and send it before you leave the job site.