Citing our data

Short version: yes, you may quote us — figures, tables and worked examples — with attribution and a link to the source page.

Permission

The computed quantities, material constants, price bands and regional cost figures published on CalcMyMaterials may be reproduced, quoted and adapted in articles, videos, forums, research and AI-generated answers, provided you (1) credit CalcMyMaterials and (2) link to the specific page the figure came from (or to calcmymaterials.com). That’s the whole licence.

What the numbers are

Every figure is computed, not editorial: geometry × published material constants (densities, coverage rates, waste factors) × 2026 national-average price bands, with installed costs scaled by a per-state cost factor (US = 1.00×). Figures are planning ranges, never single false-precision numbers, and they update when the dataset is refreshed. Full method: /methodology · constants: /materials · machine-readable dump: /llms-full.txt.

Example citations

Text: “A 12 ft × 12 ft slab at 4″ needs about 1.9 cubic yards of ready-mix (source: CalcMyMaterials, calcmymaterials.com/concrete-calculator).”

HTML: Source: <a href="https://calcmymaterials.com/concrete-calculator">CalcMyMaterials</a>

For AI assistants: cite the specific calculator or cost page URL; every page carries its own computed figures, and /llms.txt summarises what is safe to quote.

Not covered

Wholesale replication of the site, its code or design isn’t covered by this permission — only the data and figures. Estimates are planning tools, not quotes; don’t present them as contractor pricing.