Workshop Floor Concrete Thickness. Many of these requirements are defined by the class of floor the owner wants—note that decorative concrete is typically a class 1 floor. For slabs drying from one side, the depth is 40% of the thickness. I would tie a mat of 1/2 rebar 18 on center each way for reinforcement and use fibermesh in the concrete as well.
Concrete floor thickness with poke thru
First of all the number quoted is the nominal thickness. Standard thickness of the garage floor slab used worldwide is 6 inches. It needs to be thicker if heavy equipment will rest on it.
Gallery of Workshop Floor Concrete Thickness
For slabs drying from two sides, the depth is 20% of the thickness. If you want a surface that will stand up well to abuse, get 4500 or better concrete. Existing concrete floors should be test drilled to verify minimum floor thickness and to confirm building drawings. Retail stores and commercial offices will call for at least 5 to 6 inches of concrete, while industrial buildings and parking lots can call for 7 to 8 inches of concrete.
