05 · Yard
Gravel and mulch calculator
Length × width × depth, plus 10% waste. Bags and an approximate tonnage so you can order bulk instead of a pallet of sacks.
Material
Beds and trees. 2–3 in is the usual cap; thicker just floats away.
Volume ft³ = L × W × (depth in inches / 12). We add 10% for compaction and edge waste. Bag size is 2 ft³. Bulk is cheaper above ~1 cubic yard.