🛠️ DIY 123 UK Regs Matrix

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Explore verified deterministic tools calibrated to UK Building Regulations and British Standards.

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DIY 123 (diy123.uk)

The United Kingdom's largest deterministic DIY calculation matrix. Powered by 100,000+ regional British Standards, Part A-P Building Regulations & trade pricing estimators.

Trade Sectors

Building & Bricklaying

Carpentry & Timber

Part P Domestic Electrical

Microgeneration & Solar

Standards & Legal

British Standards (BS EN)

Approved Documents A-P

NHBC & RICS Tolerances

RICS Estimating Benchmarks

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