About BuildRuler

BuildRuler makes free calculators for the questions that come up before every home project: how much mulch, rock, soil or concrete to order, how many boards and panels to buy, how to lay out stairs and battens, and what the job should cost.

Each calculator shows its formula, draws your project to scale so you can sanity-check the input, and lets you replace our typical figures (material weights, prices) with your supplier's. See how we calculate.

BuildRuler is part of the same family as CarRuler and PolicyRuler. The site is supported by ads.

Questions or corrections: hello@buildruler.com.