Structural Slab Garage Floor

Standard thickness the standard concrete garage floor is six inches thick and with use of proper control joints should be thick enough to withstand normal use.

Structural slab garage floor. Is forming a 30 x 28 x 6 concrete slab for a garage. A 20 foot square of freshly poured concrete will shrink about a 1 8 of an inch in each direction. The foundation is a combination of stepped footings and tall exterior walls with some beam pockets and the aforementioned sloped ledge. Very recently i came across a structural garage slab almost identical to what you described above.

The contractor did the right thing and called for a pre pour inspection. In a structural concrete slab the thickness of the slab is not a factor in. Buy precast cement pads. When i ask for the design document btw not submitted at plan review just decided at the last minute to make the floor structural the contractor said that this was.

It comes in rolls about four feet wide and can be laid on top of the crushed rock and pulled up as you pour the slab with a hooking pole to about 1 1 2 below the finished floor surface. The cost of concrete for a slab garage floor includes the delivery of concrete and any material overages as a result of waste. The cost of the garage floor slab is divided into concrete cost and labour cost and an extra top coating cost. Homeadvisor s concrete slab cost calculator gives average installed concrete costs per square foot or size 30x30 24x24 40x60 for garage floors sheds backyard slabs and more.

My company day s concrete floors inc. This video will teach you how to form a concrete slab. When a garage floor is first poured the concrete begins to harden contractors say cure and when this process takes place the concrete shrinks a little. The cross sectional area of the steel is inserted into engineering formulae found in aci 318 to determine the load carrying capacity for a given slab design.

It doesn t include labour supplies such as reinforcing bar or building permit fees. To ensure the strength and durability of your floor you need to know how thick to pour your concrete. 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. A structurally reinforced slab on ground uses a composite of concrete and structural steel to support the design load structural steel may be rebar or wwf.

The slab needs to slope 1 8 inch per foot so a sloped ledge was designed into the exterior foundation walls for the steel decking to rest on.