Disclaimer
Last updated: 2026
These calculators provide planning estimates based on the information entered. Actual material quantities can vary due to product specifications, moisture, compaction, site conditions, installation practices and supplier packaging. Confirm final quantities and product requirements with your supplier or qualified professional.
Estimates, not exact requirements
Every number produced by YardPlanHQ is an estimate from the arithmetic you can review in the Calculation Methodology. Suppliers deliver by their own measures, bag volumes differ by brand, and most organic materials settle or compact after installation. Buying the calculated number to the last bag is your decision, not a guarantee we make.
Not professional advice
Content here — including the guides linked from Guides — is general information for a general audience, not professional consulting. For projects with structural elements (retaining walls, driveways carrying vehicles, drainage systems), consult a qualified professional about depths, compaction, base layers and local codes. No content on this site should be your only source for those decisions.
Weight and density figures
Where weight appears, it comes from a published density range and its source is recorded; it remains an estimate that varies with moisture and grading. Where we cannot find a credible source, we omit weight rather than publish a convenient guess.
No accuracy guarantee
The site is free and provided "as is" without any warranty of accuracy or fitness for a purpose. Read the Terms of Use for full and binding language.