Curbing a path requires some preparatory work. First and foremost, however, is the selection of the right one Curbs. These should match the rest of the cobblestone paths or stand out clearly, as they can be used to set accents. 
Furthermore, you should pay attention to the size and shape of the curbs, because with small ones
When laying, a Guideline a direction and route are set so that the curbs can really be laid straight. A furrow is then dug along this guide line, the depth of which depends on the curbs that should be laid here.
Depending on how far the curb should protrude above the surface of the ground, the furrow must be dug. To ensure that the furrow is the same depth in all places, the use of a guide line is also a good idea, and a folding rule is also a very good aid. Furthermore, a spirit level should not be missing.
To get a solid base, the furrow should be dug two to three centimeters deeper than needed and then filled with gravel. This not only ensures better stability, but also makes it easier to insert the curbs. However, if the curbs are subject to heavy use, anchoring them in concrete is even more suitable and even mandatory for widths of 20 centimeters or more.
Once the furrow has been prepared accordingly, the curbs can be placed. A special hammer is used to shake the stones into the correct position. The curbs must be stabilized so that there is no shift to the left or right of the curb. There are special casings for this.
Alternatively, you can also fill the sides with sand and gravel. If it is a production that is to be poured with concrete, then a boarding for stabilization is absolutely necessary.
