Free construction tools

Less guesswork.
More accuracy.

Estimate materials for renovations and building projects. Enter your measurements, get clear results and avoid unnecessary purchases.

Explore calculators →How does it work?

✓ No sign-up ✓ Free to use ✓ Mobile friendly

Tool collection

What would you like to calculate?

Six useful calculators, each with transparent assumptions.

Built for real-world projects

Buy the materials you need — not more.

Results use straightforward mathematical formulas. In this version “AI” is part of the brand name, not a generative model.

01

Measure

Enter your dimensions and material specifications.

02

Calculate

Get approximate quantities including waste allowance.

03

Double-check

Confirm the manufacturer’s specifications before purchase.

Good to know

Before ordering materials

Metric measurements

Use the unit shown next to each field: m, cm or mm. For example, 90 cm = 0.90 m. Both comma and dot are accepted.

Effective coverage

A board’s nominal width can differ from its installed coverage due to overlaps or tongue-and-groove joints.

Waste allowance

Allow for cuts and defects. Calculated amounts are estimates, not guaranteed bills of materials.