How to use the weight table
Landscape suppliers sell some materials by the cubic yard and others by the ton, and trucks are limited by weight. Find the material, then read the typical weight per cubic yard in pounds or US tons. To convert an order the other way, use the yards-per-ton column. Calculators measure volume first (length × width × depth ÷ 27 for cubic yards), then multiply by these densities.
Worked example: a 10 × 12 ft gravel pad 4 in deep is 10 × 12 × 4/12 ÷ 27 = 1.48 yd³. At 1.40 tons per yard that is about 2.07 tons, before any allowance for compaction.
Why the numbers vary
Bulk density is not fixed. Three things move it most:
- Moisture. Wet sand, soil and mulch can weigh noticeably more than the same volume dry. These figures are for typical moist material as delivered.
- Gradation. Material with a mix of particle sizes, such as crusher run, packs more solid into the same volume than uniform stone, which leaves voids.
- Compaction. Loose material is measured as dumped. Once spread and compacted, base materials occupy less volume, so order extra for compacted bases.
The figures here are typical values compiled from supplier data, not test results for any one quarry or yard. When a supplier quotes its own weight per yard, use that number.
Hauling it yourself
Heavy materials fill a truck's payload long before they fill its bed. Light materials such as mulch do the opposite. The truck table gives rule-of-thumb loads; the exact payload for your vehicle is printed on the tire and loading information placard on the driver's door jamb. Overloading affects braking and steering, and some yards will not load beyond a vehicle's rating.
Common material weight mistakes
- Mixing up short tons (2,000 lb) with metric tonnes (2,205 lb).
- Ordering by the ton from a volume estimate without converting.
- Forgetting that compacted base needs more loose material than the finished volume.
- Loading a pickup to the top of the bed with gravel or soil.