Affiliate disclosure

Done By You may earn a commission from links on this page, at no extra cost to you.

When you follow a product or tool link from a results page, that link may be tracked through an affiliate network. If you buy something, we may receive a small commission. You never pay more because of it.

Some pages also include a sponsored recommendation from a third-party publisher. These are labelled as sponsored wherever they appear.

How this affects estimates

It doesn't. Every calculator uses the same formulas and material assumptions regardless of what's linked. Product suggestions are generic searches for the item the math says you need — not a specific brand we were paid to name.

Accuracy

All results are estimates based on typical materials, pricing and conditions. Prices move, sites vary, and codes differ by jurisdiction. Confirm quantities and permit requirements locally before you buy or build.

Your email

If you unlock a materials list with your email, we store it to send you those results and occasional project guides. You can unsubscribe from any email.