How we make money
DIY Material Calc is free to use. We earn commissions from affiliate partnerships.
Affiliate links
When you click our links to buy materials or request trade quotes, we may earn a commission if you make a purchase or the merchant pays for the lead. This costs you nothing extra and never changes our calculations.
Our partners
- B&Q (via Impact): We earn commission on materials purchased through B&Q links. B&Q states "at least 2% commission on all home delivered and Click & Collect sales".
- Bark (via Awin): We earn a fee when you request quotes and a tradesperson responds. This helps connect you with local professionals.
Note: Amazon links are not currently active on this site. If we add them in future, this page will state: "As an Amazon Associate I earn from qualifying purchases."
Editorial independence
Our calculators use sourced data from manufacturers and industry standards. We do not alter calculations or hide costs to benefit any partner. Every constant is traceable to its source.
We show you the working, the formula, and the source for every result. If you find an error, please let us know.
Compliance
We follow the UK Advertising Standards Authority (ASA) Committee of Advertising Practice (CAP) Code and the terms of our affiliate programmes. All affiliate links are marked and our disclosure appears on every page with affiliate content.