Lay natural stone slabs loosely in a grit bed

Especially in the garden, natural stone slabs can be easily laid loosely in a grit bed. The dead weight ensures a firm and secure position. To prevent under-flushing and the wandering of individual panels, some non-visible construction and attachment methods are used. Also the choice of the split and the compaction decide.

Construction and substructure materials

The construction of a bed of chippings is always the same. In principle, it is a shallow pit whose bottom has been compacted. Gravel, sand, gravel and / or grit are poured into the "earth bucket". The well-thought-out distribution and careful selection of the filling material allows the natural stone slabs to be laid without mortar and glue.

The structure in the excavated pit ideally consists of three layers, which become finer and finer towards the top:

  • The base layer consists of coarse gravel
  • The middle or base layer is formed of medium gravel
  • The actual bedding is made from a layer of grit

For a path or area of ​​more than one meter wide or one square meter, excavation of about forty centimeters above ground level is recommended. The base layer should be filled up to about 15 centimeters high. It serves primarily as a frost barrier.

About twenty centimeters high, the middle or base layer of gravel is poured thereon. The bedding are then still about five centimeters Aufschichtungshöhe available.

Fix sidewalls underground or as a visible deckle

If a natural stone path is created, the lateral attachment should be planned. If the walls of the soil remain after excavation, the dumping can be done without further support measures.

If it is sandy, damp or unstable soil, it is recommended to use stabilizing curbs. For aesthetic reasons, these can also end below the upper layer of crushed stone.

The bottom of the pit should be compacted with a pounder or shaker. The individual layers (gravel, gravel, grit) are easily compacted with a slight rolling over.

Tips & Tricks

When grouting natural stone you ideally "extend" the grit bed. You can add some sand to the grit for better slurry and distribution.

Product Image: Shutterstock / Shutterstock

Video Board: How to lay a path with Wickes