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The answer depends on the depth to which the area is covered and, to some extent, that will depend on the size of the gravel.
I need to know how thick the layer of gravel is meant to be.
You will need about 463 cubic yards (around 594 tons) of gravel for this area.
That's not enough information. You need to know the width of the trench, and how much volume 1 ton of gravel is equivalent to.
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The answer depends on the depth to which the area is covered and, to some extent, that will depend on the size of the gravel.
I need to know how thick the layer of gravel is meant to be.
You would need about 13 cu yards or about 15 tons.
You will need about 463 cubic yards (around 594 tons) of gravel for this area.
you would need 23 bags OK
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You will need about 3.7 cubic yards (around 4.75 tons) of gravel.
That's not enough information. You need to know the width of the trench, and how much volume 1 ton of gravel is equivalent to.
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.
Approximately 24.7 cubic yards or 31.7 tons of gravel.
Can't answer unless we know the depth of the gravel and width of the area.
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