Companies occupying retail space and warehouse operators, for the most part want flat floors. They may be interested in appearance or functionality depending on the intended use of the floor.
It is recommended that the designer/architect/engineer understand the owner’s requirements and specify these parameters in the contract documents in F Numbers.
The FACE Company solved a vague and misunderstood specification about floor tolerances and gave the industry a method to specify and measure floor levelness and flatness in the 1980’s. The F Number system is now an ACI standard and is widely accepted in the industry.