How to Choose Gravel for a Driveway
Gravel driveways are ideal for people who need a stable surface to get to and from their house, but don't want the expense of installing a concrete or asphalt driveway. While you can make a gravel driveway by just dropping gravel onto the ground, a properly-built driveway is around a foot deep and has several different levels of gravel. Not only is the size of the gravel in each layer important, but the shape makes a difference as well. Does this Spark an idea?
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Instructions
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Select only angular gravel, as apposed to rounded gravel, for use in your driveway. The flat surfaces on angular gravel will lock together, preventing the driveway from shifting when something heavy moves onto it.
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Choose gravel that is up to 4 inches in diameter for the deepest section of your gravel driveway. Most of the pieces should be about the size of a baseball. This will normally be either #3 or #4 gravel, whichever is available to you.
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Select gravel that is about an inch in diameter for the middle depth of your gravel driveway. Most of the pieces should be about ping-pong ball sized, which will be known as #57 or #56 gravel.
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Choose the smallest available sized gravel for the top layer of your driveway. This gravel will range between 1-inch diameter pieces all the way down to gravel dust. This gravel will be either #21-A or #21-B.
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References
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