Dense material is defined as rock, dirt, brick, roofing materials and concrete. The price may vary due to amount of material and it's weight. Ardents Hauling reserves the right to charge the appropriate amount according to the dump charges involved. This requires a call to determine a reasonable price. The Ten yard Dump Trailer is terrific for garage, yard and household tasks. You can Email us at ardenttrailers@yahoo.com or Call: (925) 595-1448.