Different things go into knowing how much a cubic yard of sand weighs. First understand that a cubic yard is 3 feet by 3 feet by 3 feet. Each cubic yard will contain 27 cubic feet. Now you see how much we are talking about. The weight of this is usually between 2600 and 2700 pounds based on density and as to whether or not the sand is wet. This will usually cover about 100 square feet if it is 3 inches deep.