Design and statics of a concrete wall in the garden

A concrete wall in the garden fulfills many functions and offers creative design possibilities. It can support embankments and terracing or separate garden parts as a privacy screen. Of course, the concrete wall is also an alternative as a garden enclosure. Structural engineering for foundation and construction is indispensable.

Function and design

The tasks of a concrete wall or concrete wall in the garden are manifold. The spectrum ranges from the division of individual garden areas over the attachment of an embankment to the basic planting and pathway design. Physical laws must be observed every time you build a wall.

Free-standing walls need a secure foundation. Lateral forces due to wind and, if applicable, soil of an embankment must be statically calculated and taken into account during construction. In most cases, a concrete wall is cast in the piece on site. The concrete selection and possible reinforcement can influence the dimensioning. Even relatively "slender" concrete walls provide strong forces of action safe resistance.

Reinforcements are possible both inside the wall or concrete wall in the formwork as well as near the surface by metal mesh or nonwovens. 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

Width and foundation depth of a concrete wall in the garden are the two crucial static criteria. For both dimensions there are rules of thumb:

  • The thickness of the wall should make up about one third of the wall height
  • The depth of a foundation should be about one third of the wall height
  • The width of the foundation corresponds to the thickness of the wall
  • Embankment walls must have a draining drainage system

Foundation, height and depth

In Germany, garden wall heights are, depending on local and state regulations, between 1.50 and 1.80 meters without permit. A legal interpretive play offer so-called local enclosures. Normally, walls up to 1.20 meters in height can easily be built by yourself. At higher altitudes, at least a professional static calculation should be performed.

Manufacturing and construction method

In DIY stores and in the building materials trade, many types of precast concrete elements are available. The alternatives are concrete walls cast in formwork on site. Variants are possible in which the foundation and concrete wall are concealed 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 washed concrete
  • Structured surfaces with formwork matrices
  • Scratched surfaces
  • Stacked surfaces
  • Gabions by wall-mounted grids
  • In the concrete mixed effect and color particles
  • Ground surfaces

Concrete can be trimmed in a variety of ways on a stone look. Deceptively real natural stone imitations can be produced with suitable concrete mixtures. You can do that yourself by replacing a stone wall.

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

Tips & Tricks

Think of the enormous weight that wet soil develops after rain or watering. Your concrete wall is also relieved by superior struts or tilt.

Artikelbild: NuiGetSetGo / Shutterstock

Video Board: 8. Retaining Walls