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Floor Construction - Floor Flatness - Floor Flatness Specifications

Floor Flatness Specifications

The US, UK & Germany are currently the only countries to have developed measurement standards to any degree of sophistication. There is a substantial amount of commonality between the US and UK standards and of which can found in use throughout the world. This is contrary to the German standard which is unlikely to be seen outside of Germany and other parts of Europe.

The decision on which specification to adopt is normally determined by the country of origin/influence and there are four main floor flatness specifications used internationally

In addition, there are two basic types of floors:- 

Free Movement Floors 
Free movement floors refer to areas where materials handling equipment operates in random, non-defined directions and have an infinite number of travel paths.

Defined Movement Floors 
Floors in very narrow aisle racking systems have materials handling equipment that run in defined & fixed paths between the racking, such as very narrow aisles.

 Floor Flatness Specifications




 UK and areas of UK influence

 Concrete Society's TR34 4th Ed Free Movement Specification Table 3.1

Concrete Society's Technical Report 34 (TR34 4th Ed). Table 3.2

 USA and areas of America influence

ASTM F-number system

The ACI min number system

European Countries

DIN 18202

DIN 15185, EN15620


DIN 18202

VDMA Guideline

Full Technical data can be viewed by clicking on the relevant specifications within the table above.

What is Superflat?

The Superflat specification was the most stringent of all the UK TR34 VNA specifications. It has now been superseded by the TR34 defined movement specification, is now the same as the European recognised specification EN 15620.
A Defined Traffic path takes place when material handling equipment moves up and down the floor in exactly the same wheel position each time. Very Narrow Aisle (VNA) warehouses are most commonly applied for defined traffic specifications.

The TR34 4th Edition / EN 15620 specification considers all wheels of the VNA forklift truck. This is a vast improvement on alternate specifications which do not consider all wheels.

Read more about Superflat Floor Construction. 

Floor Flatness Testing

Working with Face Consultants Ltd, a member of the CoGri Group of companies, we are able to provide floor flatness compliance testing onFloor Flatness Testing industrial concrete floors to EN 15620, TR34 standards, German (DIN), American (Fmin) amongst other standards.

Laser Grinder In AisleVery Narrow Aisle (VNA)Floor Flatness TestingFloor Flatness Testing
Click images to see larger
Floor Construction - Floor Flatness - Floor Flatness Specifications