Important Disclosures
These calculators produce planning estimates only.
They do not constitute structural, building, gas, or electrical advice,
nor a certificate of Building Regulations compliance. Results are
derived from your inputs and UK trade defaults — they do not
account for site conditions, regional pricing, supplier minimums,
or unique construction constraints.
BuildMetricLab is a planning aid. We are not chartered engineers,
architects, or Building Control surveyors. For structural, gas,
electrical, drainage, or Building Regulations matters, consult
a suitably qualified professional — a Gas Safe registered
engineer, NICEIC-approved electrician, or chartered structural
engineer as applicable — before committing to work.
BRIGHTSCALE LABS LIMITED (ENGLAND AND WALES)
BuildMetricLab is operated by Brightscale Labs Limited, a UK company
building free, high-quality educational calculators for the
construction trade and self-builders. All tools are provided
for planning and educational purposes and do not replace
professional consultation.
Registered office:
8 Flay Field, Tithebarn, Exeter, England, EX1 3YA.
Company Registration Number: 16990009.
This site collects no personal data, sets no cookies, and runs
no analytics. Calculations happen in your browser only —
inputs are never sent to a server.
© 2026 Brightscale Labs Limited. All calculator outputs are estimates
for educational use only — verify every figure with a suitably
qualified professional before acting on it. BuildMetricLab and
Brightscale Labs Limited accept no liability for losses arising from
decisions made on the basis of these tools.