Set concrete palisades right and stable

Concrete palisades are relatively easy to install. For a professional execution, however, a lot has to be considered in order to obtain sufficient stability. The following instructions explain what is important.

Pay attention to approval

Individual construction may require some communities to submit an execution plan first. Therefore you should inquire about the respective obligations in advance.

Apply filter layer

Below the palisades, a so-called filter layer of gravel must be created. It should be at least 15 to 20 cm deep in any case.

If the subsurface below the filter layer is not sufficiently stable, it may be necessary to make the load bearing capacity with a sufficiently thick layer of lean concrete. However, this depends on the height and weight of the palisades as well as the particular soil condition.

Drainage if there is insufficient seepage

If concrete palisades are used to intercept or secure an embankment, attention must be paid to a corresponding watertight covering of the bank side palisade surface.

On the other hand, in the case of slopes that do not have sufficient seepage capacity, additional drainage must be laid. In any case, an expert should be consulted during the planning phase.

Note the installation depth

Concrete palisades must be installed in the ground at least one third of their height for sufficient stability. For palisades of, for example, 330 mm high, at least 110 mm must be within the soil.

When planning the stockade height, this must be taken into account accordingly.

Set concrete palisades professionally

  • concrete palisades
  • Lean concrete or quick-setting concrete
  • gravel
  • Concrete tub and concrete stirrer
  • spade
  • Guideline and pegs
  • tape measure

1. Substrate preparation

Measure and set the palisade line exactly. Mark start and end points with a wooden stake. Stretch a guideline between the two wooden pegs. It later serves the exact alignment of the individual palisades and the exact maintaining of the direction.

Then dig out a trench, the depth of which corresponds to at least one third of the palisade height and the height of the filter layer (around 20 cm). Check the load capacity of the trench bottom. If it is not sufficient, a concrete bed for stabilization must be created.

The trench should be dug approximately 60 cm wide for a sufficiently strong lateral attachment for average sized palisades. The guideline should run centrally over the ditch.

2. Create a frost-free foundation

The frostreie foundation is a 20 cm high gravel layer with which the trench is filled first. When the concrete bed is constructed, it comes to the hardened concrete floor.

3. Create palisade row

Place the palisades exactly along the stretched guideline. Pay attention to exact distances and the same height of the palisades.

After setting the palisades are laterally filled with concrete. He serves as a lateral support. The concrete has to harden completely before you can continue working. Depending on the type of concrete, this can take a few days. Meanwhile cover the ditch with building foil. The height of the side support should be up to about 5 or 10 cm below the trench edge.

4. Close the trench

The remainder of the trench is filled with gravel and above a layer of soil after the concrete has set. The soil layer should be tamped.

Tips & Tricks

The palisade row can also be secured against displacement during the hardening of the concrete by appropriate constructions. But in most cases this is not absolutely necessary.

Video Board: Decorative Metal Fence Installation Tips: Installing Posts and Panels