Leveling compound on concrete

Leveling floor structure 1

1mm-5cm - concrete slab - leveling compound - absorbent surfaces

With the Staenis leveling compound grid you can easily determine the correct height of the leveling compound to be placed. The system also has a light crack-bridging effect.

Leveling compound on concrete

Why this floor structure?

With the leveling compound grid you can easily level and reinforce uneven surfaces with a height between 1 mm and 5 cm (from 1 cm to 5 cm also possible with an adhesive screed) .

With the leveling grid you can easily determine the correct height of the leveling compound to be placed. The system also has a light crack-bridging effect.

Leveling grid

Floor construction manual

  1. The concrete surface must be load-bearing, stable, dry, clean and free of dust and contamination. Remove loose parts that impair adhesion. Temporarily switch off any underfloor heating. Always consult the technical data sheet of the leveling compound to check the compatibility of the substrate and leveling compound.
  2. Place a primer for absorbent surfaces (Primer CodeX FG 300) on the dry concrete surface (for non-absorbent surfaces you should use an adhesion primer). If the surface shows slight moisture problems, you can use an epoxy primer (FG 500 S) as a solution. For damp/polluted substrates, always consult the technical data sheets to avoid subsequent debonding.
  3. Once the previous layers have dried out correctly, place the Staenis leveling grid and adjust it to the correct height with a screwdriver. A leveling compound is placed between 1 mm and 3 cm high/thick as standard. If necessary, shorten the adjusting screws with a grinding wheel so that they do not protrude above the surface.
  4. Pour the liquid leveling compound onto the surface and, if necessary, level it on the top of the Staenis leveling grid. If necessary, deaerate the freshly poured leveling compound with a spiked roller. If desired, place expansion tape or edge insulation along the walls.
  5. FYI: If you have a height of less than 1 cm in specific places, do not place a grid here, so that you can level from 1 mm.
  6. For your information: leveling compound is applied when the supporting floor itself is stable and shows no cracks. If cracks occur in the bearing floor, there is a good chance that the leveling compound will also show cracks. This is of course counteracted by the Staenis leveling grid, but can still occur.

Side view floor construction


  1. Concrete
  2. Standard primer or epoxy primer against moisture
  3. Staenis leveling compound grid (thickness from 1 cm to 3 cm)
  4. Apply edge insulation if necessary
  5. Leveling compound
  6. Double bonding with S1 Flex Tile Adhesive
  7. Tile or floating floor covering
  8. Water-resistant, coloured joint mortar
  9. Plinth
  10. flexible silicone
Leveling floor structure 1

Placement video

Levelling your floor

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Filter quantity calculator (estimate)

0.81 m³
5 L
Amount of levelling compound or tile adhesive
73 bags of 20 kg

Cost calculation (optional)

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