Decomposed granite typically weighs between 1.3 and 1.5 tons per cubic yard, though the exact weight depends on moisture content and compaction level. Dry, loosely piled decomposed granite is lighter at around 1.3 tons per cubic yard, while damp or well-compacted material can reach 1.5 tons or slightly more. Some sources cite weights as high as 1.6 tons per cubic yard for particularly dense or moisture-rich material. The variation occurs because decomposed granite is a natural material derived from weathered granite rock and contains particles of varying sizes—from dust-fine to small pebbles—which affects how densely it can pack. If you need precise weights for a specific project, it's worthwhile to contact your local supplier, as their material may vary based on the granite source and how it's been processed. For practical purposes in landscaping, construction, or fill projects, using 1.4 tons per cubic yard as a standard estimate provides a reasonable middle ground. This weight is important for calculating truck loads, determining material quantities, and assessing structural load capacity in applications like decorative pathways or drainage layers.