How Much Gravel Under Garage Slab?

How much gravel do you put under a concrete slab? You will need 3 inches of gravel under a concrete slab that is 4 inches thick. More gravel is better, but 3 inches is the minimum amount of gravel you should have with a 4” slab. Use ¾” washed and screened gravel, then compact it to level.

How Much Gravel Under Garage Slab?

The question of how much gravel to put under a garage slab is an important one for anyone looking to build a garage. Gravel is an essential component in the construction of any garage slab, and the amount of gravel needed will depend on the size of the slab and the type of gravel you choose.

The right amount of gravel will ensure that your slab is stable and will provide proper drainage. When it comes to the amount of gravel needed for your garage slab, the general rule of thumb is to use at least four inches of gravel under the slab.

This will provide a solid base for the slab and will ensure that it has the necessary drainage. The size of the gravel you choose will also depend on the size of the slab and the type of gravel you choose.

For example, smaller gravel is better for smaller slabs, while larger gravel is better for larger slabs. In addition to the amount of gravel, you will also need to consider the type of gravel you are using.

There are several different types of gravel available, and each has its own advantages and disadvantages. Some of the most popular types of gravel include crushed stone, pea gravel, and river rock.

Crushed stone is a good choice for larger slabs, as it provides

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