Last updated: October 31, 2026
Estimates only
The calculators provide estimates for planning and purchasing. Real quantities depend on site conditions, product differences, workmanship and how you lay out the job. Check your measurements and product labels before buying. Consider keeping receipts and buying from stores that accept returns.
Not professional advice
Nothing here is engineering, architectural, legal or building-code advice. Structural work, roofing, footings and fences may need permits, inspections or a qualified professional. Check with your local building department, and call your utility locator service before you dig.
No warranty
This site is provided as is, without warranties of any kind. To the extent the law allows, we are not liable for losses arising from its use, including over-buying, under-buying or project costs.
Using this site
You may use the calculators for personal and commercial projects. Please don't copy this site's content in bulk or interfere with its operation.
Changes and contact
We may update these terms by changing this page. Questions can be sent to[email protected].