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5 endpoints

# Construction API

Same bearer token, same credit pool, same JSON envelope as every other endpoint — drop them into apps, sites, workflows, or agents without rebuilding formulas, validation, or docs.
[Start free →](/billing/checkout/?plan=free) [View OpenAPI](/v1/docs) [All categories](/tools/)
Lumber
[
Board Foot Calculator board-foot-calculator
Calculate lumber volume in board feet, cubic volume, weight, and optional cost.
1cr · v2026-04-22
](/tools/board-foot-calculator/)
Materials
[
Carpet Calculator carpet-calculator
Estimate carpet area, waste, roll length, padding, installation, and cost.
1cr · v2026-04-22
](/tools/carpet-calculator/) [
Decking Calculator decking-calculator
Estimate decking boards, joists, beams, posts, fasteners, and waste.
1cr · v2026-04-22
](/tools/decking-calculator/) [
Tile Calculator tile-calculator
Estimate tile count, boxes, grout, adhesive, sealer, waste, and optional cost.
1cr · v2026-04-22
](/tools/tile-calculator/) [
Wallpaper Calculator wallpaper-calculator
Estimate wallpaper drops, rolls, waste, coverage, and optional cost.
1cr · v2026-04-22
](/tools/wallpaper-calculator/)
API OPERATIONAL v1 · OpenAPI 3.1 · MCP 2025-06-18
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