Wall sq ft × material rate × stories multiplier + tear-off
Installed rates (2026): vinyl $3–$8, fiber cement $5–$12, engineered wood $6–$11, metal $7–$14, brick/stone veneer $10–$25+ per sq ft. Two-story homes multiply by 1.15x, three-story by 1.3x. Tear-off adds ~$1.50/sq ft.
Measure walls, not floors
Wall area ≈ 75–100% of floor area for a typical home, minus ~15% for windows and doors. Add 10% waste for gables and cuts.