How Much Cement, Gravel and Sand do I Need? | GoodHome IDS
Crushed stone is a material that is typically used as a base or underlayment, upon which the stuff that actually shows -- for example, the concrete of a patio-- will rest. Guessing is rarely a good solution to such dilemmas when undertaking a big project, so let's look at a (relatively) simple way to figure out the correct amount.