Design and statics of a concrete wall in the garden

A concrete wall in the garden meets many features and offers creative design possibilities. It can support slopes and terracements or separate garden parts as a view protection. Of course, the concrete wall is also an alternative as a garden umfriedung. Construction planning for foundation and construction is indispensable.

Function and design

The tasks of a concrete wall or concrete wall in the garden are manifold. The bandwidth ranges from the division of individual garden area via the attachment of a embankment to the basic planting and path design. Physical laws must be observed with each building a wall.

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Free-standing walls need a secure foundation. Lateral force effects from wind and, if necessary, the soil of an embankment must be statically calculated and taken into account during construction. In most cases, a concrete wall is poured in one piece on site. The dimensioning can be influenced by the choice of concrete and any reinforcement. Even relatively "slim " concrete walls reliably resist strong forces.

Reinforcements are possible inside the wall or concrete wall in the formwork as well as near the surface using metal grids or fleeces. Depending on the type of wall, simple iron bars can significantly increase the static stability of the concrete wall and allow a smaller construction.

Static requirements

The width and foundation depth of a concrete wall in the garden are the two decisive static criteria. There are rules of thumb for both dimensions:

  • The thickness of the wall should be about a third of the height of the wall
  • The depth of a foundation should be about a third of the height of the wall
  • The width of the foundation corresponds to the thickness of the wall
  • Embankment walls must have water drainage

Foundation, height and depth

In Germany, garden wall heights between 1.50 and 1.80 meters do not require approval, depending on local and state regulations. So-called customary enclosures offer a legal scope for interpretation. Usually walls up to 1.20 meters high can be built by yourself without any problems. At greater heights, at least one professional static calculation should be carried out.

Manufacturing and construction method

Many types of precast concrete elements are available in hardware stores and building materials stores. The alternative are concrete walls cast in formwork on site. Variants are possible in which the foundation and concrete wall are shuttered together or a separate structure.

Design forms of the surface

The look of a concrete wall in the garden extends far beyond a smooth gray surface. Popular and common surface designs are:

  • Sandblasted surfaces
  • Washed out exposed aggregate concrete
  • Surfaces structured with formliners
  • Chafed surfaces
  • Bush-hammered surfaces
  • Gabions through grids attached to the wall
  • Effect and color particles mixed into the concrete
  • Ground surfaces

Concrete can be "trimmed" to a stone look in a variety of ways. With the right concrete mixes, deceptively real imitations of natural stone can be created. You can do this yourself to replace a stone wall.

Concrete walls are also suitable as a substructure for stone or tile cladding. Wooden cladding creates the visual appearance of a fence. Planking, quarry stone cladding or metal plates make the concrete support corset invisible.

Tips & Tricks Remember the enormous weight that wet soil develops after rainfall or irrigation. Your concrete wall can also be relieved by struts or inclination in front of it.