Answer: Bags of mulch are usually 2 cu. ft. (sometimes more or less) so, for a 2 cu. ft. bag, it takes 13.5 bags to = a cubic yard. So, 1400 bags is equal to roughly 100 cubic yards. If you have measurements, this is the formula for figuring the material you would need Length in feet x Width in feet x Depth in inches then divide by 27. (A cubic yard = 27 cubic feet. and most mulch is laid 3 inches deep).
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