Floor Flatness Specifications

Table 1: Measurement Standards

Geographical Regions Free Movement Floors Defined Traffic Floors
UK and areas of UK influence Concrete Society’s Technical Report 34 (TR34 4th Ed) Free Movement Specification Table 3.1 Concrete Society’s Technical Report 34 (TR34 4th Ed) Defined Movement Specification Table 3.2
USA and areas of American Influence ASTM F-Number system The ACI F-min number system
European countries DIN 18202TR34 4th Ed Free Movement Specification Table 3.1 DIN 15185, EN 15620:2008*TR34 4th Ed Defined Movement Specification Table 3.2
Germany DIN 18202 VDMA GuidelineDIN 15185EN 15620:2008*

Measurement standards for floor flatness tolerances have only been developed to any degree of sophistication in the US, UK and Germany.

There is considerable commonality between the US and UK floor flatness standards, which are found in use throughout the world. This is unsurprising, as FACE is the common link and it is no coincidence that the designation F is found in the US standard. The higher the F-Number, the higher the floor tolerance is and the flatter and more level the floor.

The German DIN standard is unlikely to be encountered outside of Germany and some other parts of Europe.

The decision on which flatness specification to choose is usually dependent on the country of origin and there are four main floor flatness specifications used internationally.

The Full Technical data can be viewed by clicking on the relevant specifications within Table 1.

Click here to discover why floor flatness tolerances are so important

* Replaced 2021. New version has no flatness requirement.

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