Estimates only
The calculators give estimates for planning. Real quantities depend on your measurements, your supplier's product sizes, ground conditions, moisture and waste. Check your numbers and confirm sizes, weights and prices with your supplier before you order or buy.
No warranty
The site and its tools are provided "as is" without warranties of any kind. We do not guarantee that results are error free, and we are not liable for losses from ordering too much or too little material, or for any other use of the results, to the extent the law allows.
Acceptable use
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Changes
We may update these terms and will change the date above when we do. Continued use means you accept the updated terms.