Clinker - which joint width?

Very decisive for the optical effect of clinker is the respective joint width in connection with the stone format. How the optimum joint width is determined, and which joint width applies to which stone, is described in detail in this article.

stone formats

Stone formats are set by default for clinker. So you can only choose from a - relatively limited - selection of stone formats. In this context, the so-called "layer height" also plays a role: the layer height indicates the height of the clinker row together with the joint height.

Layer height set?

The applicable standards also provide the right (optimal) joint width for each block format. The layer heights are chosen so that an even number of layer rows per meter is always achieved.

Clinker - which joint width?: joint

An overview of the standard formats, their designations, dimensions and the corresponding layer height can be found in the table below

stone formatabbreviationHeight of stoneWide stonelayer heightLayers per m
WaalformatWF50 mm210 mm62.5 mm16
thin formatDF52 mm240 mm62.5 mm16
Long thin formatLDF52 mm290 mm62.5 mm16
Waal thick formatWDF65mm210 mm76.9 mm13
normal formatLDF71 mm240 mm83.3 mm12
Twice-thin format2DF113 mm240 mm125 mm8

It is striking that multiples of 12.5 often play a role here. This is related to the so-called octametric measure, as described in DIN 4172.

In the case of the octametric measure, the basis for all the bricks and for the masonry is the meter. Halving the meter further and further, one eventually comes to the so-called meter-eighth - 12.5 cm.

This size is used as a basic quantity for planning bricks and masonry. The usual brick dimensions are based on this basic measure. This explains the layer heights (and the joint width determined with them).

Differences to tiles

Unlike tiles, you are therefore not free with clinker in the design of the joint width, the joint width is already set normative here. However, the joint colors also play an important role in the appearance of the clinker facade. The selected color makes it possible to influence the optical effect of clinker surfaces very sustainably.

Tips & Tricks

Be sure to show the combination of stone and chosen joint color. The optical effect can usually be clearly recognized and estimated only with larger sample areas.

Video Board: Fitting planks on a clinker vessel (small boats) - Part 1