![]() The base layer or middle layer is usually made of #57 crushed stone. This is a mixture of crushed stone up to 2″ in size. In most cases, you will have three layers of gravel: a sub-base that will be 6″ deep, a base that is 6″ deep, and a surface that is 6″ deep.Įach type of gravel will be different, with the sub-base being made of #3 gravel. The top layer can be anywhere from 4″ to 8″ depending on your preferences and the type of gravel being used. Most driveways should have a depth of 6″-8″ of gravel, but the entire driveway should be between 12″ to 18″ deep, made up of several different layers of material. A 100′ measuring tape or measuring wheel may be needed to find these measurements depending on how long the driveway is.ĭivide the measurement in inches by 36 to find the driveway’s depth in yards. ![]() Cubic yards are found by multiplying the length by the width by the depth in yards.įind the driveway’s length and width in yards by dividing the measurement in feet by 3. Gravel is commonly sold by the cubic yard, so to find the material needed for a driveway, you need to find the volume in yards.Ĭalculate How Many Cubic Yards of Gravel You NeedĮstimating gravel driveway materials is as simple as estimating the cubic yards of volume the driveway needs to be. ![]() Gravel does have a tendency to migrate, however, so many people with gravel driveways need to order new material every few years to keep the driveway looking its best. Gravel driveways are also one of the most affordable types, making them a good choice for homeowners that have large driveways or who are on a budget. Crushed stone is a common material to use for a driveway because it offers a nice clean look, resists weeds, and is easy to install.
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