Boulders Boulders are not in stock, but can be ordered. Sponge Boulders Size: 12”-36” diagonals Weight: 1,300-2,500 lbs Coverage: 1-8 pieces Trap Boulders Size: 8”-48” diagonals Weight: 1,300-2,500 lbs Coverage: 1-20 pieces Weathered Limestone Boulders Diagonals: 8”-14”, 14”-24” and 24”-48” Weight: 2,500-3,800 lbs Coverage: 1-25 pieces Weathered Limestone Ledge Diagonals: 12”-60” diagonals Thick: 5”-9” thick Weight: 2,000-3,500 lbs Coverage: 1-7 pieces Yukon Gold Boulders Diagonals: 24”-40” or 18”-24” Weight: 2,200 lbs Coverage: 3-8 pieces