Acceptance of these terms
By using this website, you agree to use its calculators and content under these terms. If you do not agree, do not rely on or continue using the website.
Planning estimates
Calculator results are planning estimates based on the measurements and optional supplier information you enter. Results can change because of measurement error, material variation, moisture, compaction, packaging, supplier rounding, waste, delivery practices, taxes, fees, labor, site conditions, and other project-specific factors.
The website does not promise that a result is suitable for a particular purchase, installation, construction method, planting plan, legal requirement, or professional decision.
Your responsibility
You are responsible for confirming measurements, units, product labels, supplier quantities, prices, delivery terms, project requirements, and any professional or regulatory requirements that apply to your project. Review the calculation details and assumptions before using an estimate.
Availability and changes
The website may be corrected, updated, interrupted, or removed. A calculator, formula explanation, source link, or feature may change when errors are found or the product scope changes. Continued availability is not guaranteed.
Website content
The site design, original text, calculator interface, and software may not be republished as a competing service or represented as your own work without permission. You may use calculator results for your own project planning and may copy or print an estimate using the provided controls.
External standards and source materials remain the property of their respective publishers and are linked for reference.
Changes to these terms
These terms may be updated when the website or its services change. The effective date at the top of this page identifies the current published version.