Calculating stone needed for flower bed border?

Is there a trick or calculation I can use to figure out how much stone I'll need for the border of a flower bed?

Calculating stone needed for flower bed border?
Since you didn't give any idea what size of area you want to cover or the depth you want to cover, I can't calculate for you.





Most landscaping products are sold bulk by the cubic yard (cu yd). You've got to figure out how many square feet of ground you want to cover, and the depth you want the stone to be, and find out how many cu yds you'll need to buy.





A cu yd is 36" x 36" x 36", or 3' x 3' x 3', so a cu yd will cover 324 sq ft to a depth of 1".





1 cu yd = 3 ft x 3 ft x 36 = 324 sq ft at 1" depth.





Then just divide 324 sq ft by the number of inches you want as the depth. So if you want the stone to cover 2" deep, divide 324 by 2.





1 cu yd = 324 sq ft at 1" depth / 2 = 162 sq ft at 2" depth





For example, suppose you wanted to create a border 2 ft wide by 114 feet long, and you wanted the stone to be a depth of 2".





area to cover = 2 ft x 114 ft = 228 sq ft





Then divide your area to cover by the number of square feet coverage you get from a cubic yard at the depth you want.





228 sq ft / 162 sq ft at 2" depth = 1.41 cu yds





If you ordered 1.5 cu yds of stone, you'd have plenty.





If you're buying stones by the bag, the bag will state how many cu yds or how many cu ft are in the bag.





If you need to calculate the number of cu ft you need, just multiply the number of cu yds you calculated by 27 because there are 27 cu ft in a cu yd. (3ft x 3ft x 3ft = 27 cu ft)





So for our example,





1.41 cu yds x 27 cu ft/cu yd = 38.07 cu ft of rock needed





Then just divide by the number of cu ft in a bag to determine the number of bags needed.





If you're confused, just give me the dimensions of the area you want to cover and the depth you want the stone to be (perhaps by adding an edit to your question) and I can show you how I calculated the answer using your numbers.
Reply:Measure the size of your border in feet %26amp; then buy the amount of stone you need going by how much stone is in each bag. The bag should tell how many feet/yards it'll cover.
Reply:Here are the caculations you will need depending on how it is sold...........





cubic foot= Length X width of border, then divide by 15.


sq. foot= Length x width of border, then divide by 9


cubic yard= length x width of border, then divide by 27

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