Standard Concrete Floor Slab Thickness

Typically a project specification will reference aci 301 specifications for structural concrete which in turn references aci 117 specifications for tolerances for concrete construction and materials.

Standard concrete floor slab thickness.

6 8 inches 0 15 0 2 m side walks barn and granny floors. To prepare the base cut the ground level to the proper depth to allow for the slab thickness. The thicker the slab the more weight it can support. In developing the load and resistance factors for aci 318 building code requirements for structural concrete the slab thickness standard deviation was considered to be 0 47 in.

Enter chart with slab stress 2. Recommended thickness of concrete slabs. The standard concrete garage floor is six inches thick and with use of proper control joints should be thick enough to withstand normal use. This is largely based on the types and the number of vehicles you plan to park on it.

4 5 inches 0 1 0 125 m farm building floors home basement floors. Slab thickness is 0 46 in. Type of use how thick you pour your concrete floor can be determined by how the floor is going to be used. A standard deviation of about 1 2 in.

The bulk of the floor s thickness comes from the joists which are the horizontal beams that carry the floor s weight. Add standard and customized parametric components like flange beams. Five to six inches is recommended if the concrete will receive occasional heavy loads such as motor homes or garbage trucks. Minimum thicknesses are set for standard concrete construction but calculations are also based on the bearing capacity of the soil and the heaviest concentrated load the concrete will carry.

13 mm means that about 68 of a floor will have a. Parking slabs are thicker up to 12 but have far more rebar. Industry standard is 4 6 inches depending on the use of slab. Slab thickness tolerances has long been a point of contention between contractors and specifiers.

Concrete is stronger when it s thicker but resources are wasted if the thickness exceeds what s necessary for the structure s performance. Anticipated loading requirements also play a part and change these numbers. Generally speaking a concrete residential highrise is 7 8 slabs office are 9 10 and hotels somewhere in between. Joists in home construction are usually made with 2 by 10 or 2 by 12 lumber.

Standard concrete floor slab thickness in residential construction is 4 inches. Concrete slab on grade thickness analysis.