A project planner, not a one-field answer
Real work involves more than length × width. Each tool combines multiple rooms, beds, pours, or runs; shows exact and rounded quantities; preserves assumptions; and builds a practical shopping list.
How trust is built
Calculation formulas live in typed, tested code. The result shows what was included, what was removed, and where waste was applied. Worked examples provide another way to audit the logic.
- Product-neutral inputs
- Visible formulas and assumptions
- Automated unit and browser tests
- Planning warnings on every result
What the site does not do
The site does not provide structural, electrical, gas, engineering, surveying, legal, or code-compliance advice. It does not sell products, operate accounts, or send project inputs to a server.
Last reviewed: July 20, 2026. Product functionality and disclosures should be reviewed whenever third-party services or data flows change.