Floor Slab Thickness Residential

Foundation and floor slabs for buildings located on expansive soils shall be designed in accordance with section 1808 6 of the california building code.

Floor slab thickness residential.

The bulk of the floor s thickness comes from the joists which are the horizontal beams that carry the floor s weight. Concrete photos articles info design ideas plus local concrete contractors for colored stamped and textured concrete patios driveways pool decks interior stained floors concrete countertops and many more decorative concrete applications. 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. The same floor if framed with 2 by 12s will be 13 1 4 inches thick.

Standard thickness of the garage floor slab used worldwide is 6 inches. For slab on ground floors it provides an understanding of the footing slab selection design detailing and construction requirements contained in as 2870 and. The granular material serves as a capillary break and a place to store the water until it can be absorbed back into the surrounding soil. 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. 1 3 minimum thickness of slab on the ground. Depending upon the type load coming upon the slab the thickness is varied. Ubc recommends minimum thickness of concrete floor slabs supported directly on the ground to be 89mm whereas bcgbc4010a apply structural principles to residential low rise constructions determined minimum thickness to be 100mm.

For a competent contractor working with a decent subbase that thickness would easily keep the average above the 5 5 8 inches needed to satisfy the average thickness tolerance. Five to six inches is recommended if the concrete will receive occasional heavy loads such as motor homes or garbage trucks. Slab on ground and other foundation systems which have performed adequately in soil conditions similar to those encountered at the building site are permitted subject to the approval. Capillary break layers under floor slabs are typically comprised of 6 to 8 inch thick layer of 3 4 inch granular material that is gap graded to increase drainage rates.

To prepare the base cut the ground level to the proper depth to allow for the slab thickness.