Take heed if you're planning to build a run and fill it with sand. I ordered three yards of sand yesterday. Depending on the amount of moisture, sand and dirt weigh approximatily 2 - 2 1/2 tons per cubic yard. @#$%^^% WHAT A JOB moving it into the new run! Have your sand dumped inside the run BEFORE you build the run. Ah'm tard already, and I just got started.