The average weight of a sandstone boulder is approximately 150 pounds per cubic foot. Limestone boulders and granite boulders in most cases weigh more. They average about 175 pounds per cubic foot. To estimate the quantity, you need to convert the area into cubic feet by multiplying length x width x height.
Also, how much do large landscape boulders cost? Based on national research, the average costs for landscape boulders are: Average Minimum Cost of Landscaping Boulders: per ton. Average Maximum Cost of Landscaping Boulders: **** per ton.
Furthermore, how do you calculate the weight of a rock?
How to Calculate Weight of a RockMeasure the length, height and width (depth) of the rock. Determine the specific gravity of the rock (if you know what type of rock youre measuring, refer to the chart on the EduMine website for specific gravities of various rock types). Multiply the volume of the rock by its specific gravity.
How big is a 200 pound rock?
Rock Size Rock Weight Avg. Dimensions One Man 50 - 200lbs 12 - 18 Two Man 200 - 700lbs 18 - 28 Three Man 700 - 2,000lbs 28 - 36 Four Man 2,000 - 4,000lbs 36 - 48