Standard Volume-to-Weight Conversion Factors Paper Product Volume Weight (lbs) Source Books, hardback, loose 1 cubic yard 529.29 Tellus Books, paperback, loose 1 cubic yard 427.5 Tellus Egg flats one dozen 0.12 U.S. EPA Egg flats 12 x12 0.5 U.S. EPA Paper sacks 25# size 0.5 U.S. EPA Paper sacks 50# dry goods 1 U.S. EPA