Materials guides

Practical estimating guides — how to read a material spec, when to add waste, and when to buy bagged instead of bulk.

A cubic yard is the standard unit for bulk material. Here's the formula and a worked example.

Yards measure volume, tons measure weight. Suppliers price and load in one or the other.

Break-even is usually around 0.5–1 cubic yard. Below that, bags win on convenience.

Running short costs more than the excess — a small waste factor prevents a costly re-delivery.