Disclaimer
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All results on YardageMath are estimates for planning. They are not professional engineering, construction, legal or financial advice.
Material densities, coverage, bag yields and prices vary by supplier, region, moisture and product. The calculators apply typical industry figures and a waste allowance you can edit, but your actual project may differ. Always confirm quantities with your supplier or contractor before ordering, and confirm structural, drainage, shoreline and permitting requirements with a qualified professional and your local building department.
For retaining walls, footings, channel and shoreline work and anything load-bearing, follow an engineer's design and local code. We accept no liability for over- or under-ordering or for work carried out based on these estimates.
See also our Terms of Use and How We Calculate for the sources behind each figure.