Garage Floor Slab Design

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 slab design.

Standard thickness of the garage floor slab used worldwide is 6 inches. The house i grew up in had a garage floor drain. Thickness of garage floor slab. This creates additional space under the garage that may be used for occupancy.

The rationale for requiring this little step was that it would prevent spilled gasoline gasoline vapors and carbon monoxide from getting inside the house. Garage floor drain ideas time tested technology. The inspiration for this column came from unexpected comments about a brief mention of garage floor drains in my december 1 2019 askthebuilder newsletter. 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. Today s residential building code does not include this requirement. 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.

Building codes provide minimum standards to support garage applications and should be followed. Building codes used to stipulate that the floor of an attached garage be four inches lower than the floor level of the house. Old habits die hard.