Free material calculater for boulder weights and coverage
4'' to 5'' boulders = 1 boulder per ton CALCULATE A CUBIC YARD: length x width x depthdivided by 27 = the cubic yard (use .5 for 6 inch measurements) 1 YARD COVERS A AREA AT: 2" deep162 square feet 3" deep108 square feet (note: all figers are approx. natural stone sizes and weights change with the stone.