Guides

The questions that come before and after a quantity calculation — what suppliers charge, what goes wrong on site, and how to judge what arrived.

The calculators answer how much. These answer everything either side of that: what a supplier will actually send and charge, what fails on site and what it costs, and how to check what turned up on the truck.

Every figure in these guides names the document it came from, with its edition and section, the same as the calculators.

Calculators

Checking Topsoil and Compost Before the Truck Tips It — The properties a topsoil specification makes you measure, what a texture class name really claims, and the one failure mode you have to test for yourself.
Why the Yard Split Your Order Into Two Loads — The federal axle and gross weight limits, the bridge formula and the state spring thaw rules that decide whether your order arrives on one truck or two.