Methodology

Every calculator on ProjectYards pulls from the same canonical set of material densities and coverage rates, listed below. These reflect standard, widely-cited construction industry figures. Actual material density can vary by supplier, moisture content, and compaction — always confirm exact quantities with your supplier before purchasing.

Material densities (tons per cubic yard)

Weight-based densities

Bag yields

Every calculator also carries a disclaimer: estimates only — verify with your supplier. Structural applications (footings, load-bearing work) should be reviewed by a licensed professional or engineer.