Relocate granite stones professionally

The trend is also in the garden and terrace design towards more naturalness. This means that a lot of natural stone is laid. One of the most popular natural stones are granite stones, finally convince by a variety of benefits. Since it is natural stone, the preparation work is of great importance. Below you will receive detailed instructions from us so that you too can lay your granite stones professionally.

Shapes and dimensions of granite stones

Granite offers a multitude of advantages. Particularly noteworthy would be explicitly an enormous hardness, frost resistance and skid resistance. This means that granite stones are predestined for outdoor use like hardly any other floor covering. You can buy granite stones in different sizes.

  • as large paving: 14 (13/15) cm, 16 (15/17) cm, 18 (17/19) cm
  • Raupflaster: irregularly broken granite stones
  • Small patches: 8 (7/9) cm, 8.5 (7/10) cm, 9 (8/10) cm, 9.5 (8/11) cm, 10 (9/11) cm
  • Mosaic patches: 4 (3/5) cm, 5 (4/6) cm, 6 (5/7) cm, 7 (6/8) cm

The values ​​in parentheses indicate the acceptable tolerances.

You can also easily calculate the need for granite stones. As base calculation, always use granite stones of 10 cm. 100 bricks with the tolerances (90 or 110) make one square meter. Based on these quantities, calculating other quantities is easier.

Lay granite stones outside

Lay granite stones: the substructure

Outdoor granite stones can be laid in two common ways.

  • on concrete, glued (natural stone glue)
  • on substructure, set in crushed sand or split

For a substructure.

  • unbound (in sand or grit bed)
  • tied in a mortar bed (trass cement)

Creating a granite stone bed

The standard method is the setting of granite stones in crushed sand or split. You have to form a substructure. To do this you need to lift a bed about 40 cm deep. This is filled with gravel in several layers (support and drainage layer). Each individual layer must be compacted accurately (jogger).

Bedding layer and joints

Then follows a layer of crushed sand or grit, the bedding layer, which should have 5 cm. In the bedding layer, the granite stones are embedded around 1 to 1.5 cm. The joint dimension is between 3 and 5 mm. You can grout with sand (crushed sand) or chippings. There are also special grout products for weeds and special grout for outdoor granite stones.

Deviations from the "standard bed"

Often the idea of ​​laying granite stones follows the "practical" conditions in a garden. Over the years, trails are becoming visible, which are much used, but unsightly. The father of the thought is then usually a beautification of these paths, which have arisen for practical reasons.

Special substructures for granite stones

But now it is so that here the underlying soil is mostly compacted accordingly. So not necessarily such a massive substructure, as previously described, be applied. Depending on individual peculiarities, it may be sufficient to create a suitable grit or sand bed, or to make the underlying gravel layer only 10 to 15 cm high. However, it always depends on the concrete events.

Combination bonded / unbound granite stone laying

In addition, a distinction is made between bonded laying (in the mortar bed) and unbound (laying in chips or crushed stone) laying. Explicitly for paths that are to be paved with granite stones, but also on terraces, is usually laid unbound, the final row but then tied into a special, frost-resistant concrete bed made of trass cement and grit. On the outside, a mortar back is created, but not up to the top of the stone reaches, so that later not visible.

The preparation works decide on quality and durability

According to the explanations, you can now choose the right laying technique for your project with granite stones. Explaining the differences beforehand was important because there are no major differences in the actual laying work. But as you could read, probably with the underlying substructure. In any case, the correct execution of the preparatory work or substructure is important. Thus stands and falls the long-term durability of the paved areas.

Step-by-step instructions for laying granite stones

  • granite stones
  • Gravel (grain size 0/45)
  • Crushed sand or grit (bedding layer)
  • Joint filling: chippings, crushing or joint sand, special grout
  • possibly trass cement
  • possibly weed fleece
  • Mini excavator or shovels and wheelbarrow
  • Jogger
  • Angle grinder with suitable cutting disc, cup wheel for smooth grinding
  • alternatively (professionally) a stone wet saw with table
  • Hammer for plasterer
  • rubber hammer
  • guide

1. Preparatory work

According to the conditions on your construction site, you must excavate the soil at different depths as described.

2. Insert base course (gravel)

Bring the base layer layer by layer. For a base layer of 30 to 40 cm, the individual layers should be at most 10 cm high and then relatively time-consuming compacted with a vibrator.

3. Apply a bedding layer

When you are done, the bedding layer comes. The can again be 5 to 10 cm thick and consist of various, further described above materials (crushed sand, grit).

4. Lay bound curbs (as needed)

If you want to place bounded curbs in a frost-resistant trass-cement bed, this step will follow next. The upper edge of the granite stones should always be flush with the turf.

5. Lay granite stones (unbound)

Then you can already lay laying the unbound granite stones. These are pressed 1 to 1.5 cm into the bed and aligned with plaster and rubber mallet. The joints to the next stones should be 3 to 5 mm. Always orient yourself by your taut guideline.

6. Compact granite paving and grout

For unrestricted laying, fill the joints with chopped or crushed sand. Then the joints are poured in with water. In fixed laying, the joints are filled with trass cement. Depending on requirements (unbound installation), the granite stone surface must now also be compacted with the vibrator - especially if the paved area is also to be used by cars.

Tips & Tricks

Granite stones can be laid in many different patterns. Because the choice is so enormous, you should let all laying patterns have a correspondingly long effect. Some providers also use software to lay a photo on a photo you have submitted, so that you can get a very realistic, plastic idea. The house journal offers many more interesting articles, guides and instructions for working with natural stones. Of course also for laying granite slabs in the interior and living area.

Video Board: How to Move a Granite Slab