GraniTop is our proprietary Microtopping product designed to enhance the latest fashion in modern smooth concrete flooring. Installed in minimum thickness of 2 mm it can be done in various colors although the most desired is a shade of grey. If the sub-base is a concrete slab, and to avoid random cracking, the floor may require control joints the spacing of which depends on concrete thickness. Joints can be left open or grouted in the desired grout color. Stainless steel rods can also be inserted to fill the joints.