Number of bags = 1/volume of gravel in each bag .
It depends on the volume of the bag and how deep you want the gravel to be.
1
4000PSI, 12bags, .5cum3sand 1cu.m3 gravel
14 .
you would need 23 bags OK
Number of bags = 1/volume of gravel in each bag .
You would need 54 bags of 0.5 cubic feet pea gravel to equal 1 cubic yard.
It depends on the volume of the bag and how deep you want the gravel to be.
It would obviously depend on how thickly you wanted to cover the surface, and how 'tall' a single unit of pea gravel was. You would need 736 bags per foot depth.
A cubic yard is 3x3x3= 27 cubic feet so you would need 27/.5 = 54 bags
1
4000PSI, 12bags, .5cum3sand 1cu.m3 gravel
Sand bags or gravel
14 .
I need to know how thick the layer of gravel is meant to be.
Area is 170 square feet. Depth is 6 inches or 1/2 foot, so volume to be filled is 170 x 1/2 = 85 cubic feet. Each bag has 5 cubic feet of gravel, so you would need 85/5 = 17 bags