When you lay stones on pathways and patios in the garden you should remember to choose stones that are approximately the same size so that the surface you are laying is not too uneven to walk on.
Also perform the preparatory work carefully. If it is wet where the stones are to be laid you should dig deeper and place a drainage layer of macadam in the bottom under the base course. Otherwise the stones can move both vertically and horizontally in the winter when the ground frost comes. The chances of the stones returning to their original position when spring comes is very small.
The size of our material is usually specified in millimeters. This means for example that macadam 11/16 is a crushed rock material where most particles are
between 11 and 16 mm
Some of our plants can also supply ungraded crushed rock to you in a practical large sack.
It is important that the sand course is compacted properly and that the layer is never more than about 4 cm thick. If it is thicker there is a risk of the course being too elastic and the stones can then slide around, as on a layer of clay, as soon as it rains. Remember never to lay natural stone when it is raining as this will destroy the laying sand course.
If a large area is to be covered with slabs, it can be advantageous to use machines. It is often worthwhile to hire a small excavator for more extensive excavation work.
Rock flour 0/2 and 0/4 can be used both as a substrate for the slabs as well as in joints. Macadam 2/4 can also be used for a greater drainage effect.