Garage Floor Slab Design

The house i grew up in had a garage floor drain.

Garage floor slab design.

This creates additional space under the garage that may be used for occupancy. Today s residential building code does not include this requirement. Thickness of garage floor slab. You will also need some type of steel reinforcing in the garage floor slab portion of the design such as 10 gauge wire mesh that is formed in 6 x 6 squares.

Building codes used to stipulate that the floor of an attached garage be four inches lower than the floor level of the house. Depending on the region and the garage plans this slab can be poured on a compacted subgrade which can include sand or gravel. Garage floor drain ideas time tested technology. The rationale for requiring this little step was that it would prevent spilled gasoline gasoline vapors and carbon monoxide from getting inside the house.

A 6 inch thick slab weighs only about 75 psf and live loads anything that is not part of the building itself including vehicles typically don t exceed 50 psf in a garage. The thickness of the garage floor slab depends on many factors such as types of loads coming upon the slab climatic condition design mix of the concrete and span of the concrete. Standard thickness of the garage floor slab used worldwide is 6 inches. That means that the soil under a typical garage slab only has to be able to support 125 psf.

Old habits die hard. Radiant heat also emanates up from the floor so the garage. Recommend design process for residential garage floor joists the use of wood members to support a garage floor is a common practice for sloping lots.