What is the density of sand?

The density of sand is affected by whether the sand is packed (rammed) or loose, and whether it is wet or dry. When it is packed, the grains of sand are forced into tighter formation and more matter is in the volume. read more

Coarse sand paper has a bigger particles and lower sand density rating than fine sand paper similar to the volume example above. Sand paper makes more sense in terms of unit area, so even though the sand coating has thickness and volume, they typically don't represent the sand density in volume terms. read more

The density of sand depends on how wet it is; completely dry sand is 80 pounds per cubic foot, damp sand is 100 pounds per cubic foot, wet sand is 120 pounds per cubic foot, and wet packed sand is 130 pounds per cubic foot. read more