Mulch, Topsoil, and Aggregate Volume
Mulch, topsoil, or gravel for a bed, in yards, bags, and tons.
Example
You enter
- Area (ft²) 1000
- Depth (in) 3
- Bulk density (ton/yd³: mulch 0.5, topsoil 1.1, gravel 1.4) 1.1
- Bag size (ft³, default 2) 2
- Truck load (yd³, default 10) 10
You get
- Volume 9.26 yd^3
- Bags 125
- Tons 10.19
Details, formula, and sources
Bulk landscape material: yd^3 = area x depth/324, bags = ceil(yd^3 x 27 / bag), tons = yd^3 x density, loads = ceil(yd^3 / load). 1000 ft^2 at 3 in topsoil (1.1 ton/yd^3) -> 9.26 yd^3, 125 bags, 10.2 tons, 1 load; lighter mulch (0.5) is 4.6 tons at the same volume. The supplier's product density governs.
yd^3 = area x (depth/12)/27 x (1 + waste%); bags = ceil(yd^3 x 27 / bag_ft3); tons = yd^3 x bulk_density; loads = ceil(yd^3 / load_yd3).
Bulk landscape-material take-off from area, spread depth, and product density, first-principles volume, by name.
The area-by-depth volume, the 27 ft^3 per cubic yard conversion, and the density-to-weight step are public arithmetic; product densities come from the supplier.
Estimate. AHJ and licensed professional govern.
Field names used by the API: area_ft2, depth_in, bulk_density, bag_ft3, load_yd3, yd3, bags, tons
- Volume yd^3 = area x depth/324 (depth in inches), x waste allowancefirst-principles volume
- Quantities bags = ceil(yd^3 x 27 / bag), tons = yd^3 x density, loads = ceil(yd^3 / load)arithmetic
- Product density mulch ~0.5, topsoil ~1.1, gravel ~1.4 ton/yd^3; supplier's value governsscope of this tile