Terms of use

These are estimates for planning

The calculators on this site produce estimates to help you plan and order material. They are not engineering advice, structural design, or a substitute for a qualified professional or your local building department.

Confirm before you order

Material densities vary with mix, moisture and gradation. Supplier minimums, batching increments, fees and prices vary by region and by day. Confirm quantities and pricing with your supplier before placing an order. We show ranges precisely because these values are not fixed.

No warranty

This site is provided as is, without warranty of any kind. We are not liable for material ordered, work performed, or costs incurred on the basis of an estimate produced here. The decision about what to order remains yours.

Use

You are welcome to use these calculators for personal and commercial estimating, and to share links to them.