Gravel Driveway Calculator
Three courses, three grades, weighed and priced separately.
Project Calculators for Jobs With Several Materials
A project needs several materials at once, in the right order and at the right depths. These size the whole job rather than one material, and each links out to the calculators behind it.
French Drain Calculator
Stone, pipe, fabric and the fall across the run.
Shed Base Gravel Calculator
Pad size, border overhang and the right grade of stone.
Retaining Wall Block Calculator
Blocks, base, backfill and drain pipe from one measurement.
Paver Patio Base Calculator
Base depth by use, plus the dig depth for the whole stack.
Why a project is not one material
A driveway is three courses of different stone. A french drain needs gravel, pipe and fabric at once. A shed base is a pad that has to be bigger than the shed sitting on it. None of these are a single number, which is why they get their own tools rather than sending you to a material page.
Each one sizes the whole job and then links out to the material calculators behind it, so you can check any single course on its own.