Incorporating a retaining wall into a timber paling fence can be efficiently achieved using steel posts and steel 100UC galvanised H or C sleeper columns. Retaining walls are essential for properties with sloping terrain, as they help prevent soil erosion, manage water runoff and ensure long-term structural stability. Steel posts provide the necessary strength to support the additional pressure exerted by the retained soil.
Our Process
The process begins with the installation of galvanised steel posts. These posts are embedded deeply into the ground to provide superior support and withstand lateral earth pressure from the retained soil. Each post hole is filled with a minimum of 60kg of concrete to ensure stability and long-term durability.
Steel 100UC galvanised H or C sleeper columns are attached to the steel posts, allowing for the installation of treated pine sleepers to form the retaining wall component. Sleeper thickness can vary depending on site requirements, generally ranging between 50mm and 100mm. This flexibility allows the retaining wall to suit a range of site conditions while maintaining structural integrity.
Treated pine plinths (150mm x 38mm) are fixed at the base using 75mm x 14-gauge Series 500 metal drilling batten galvanised class 3 screws. Treated pine rails are then attached to the steel posts with the same screws to provide horizontal support for the palings.
Primary palings (150mm wide) are nailed to the rails with galvanised screw shank fencing coil nails (57mm x 2.7mm), spaced 30mm apart to allow for timber shrinkage. 100mm wide cover palings are then installed over the gaps to create a seamless finish and eliminate visible shrinkage gaps.
This method ensures seamless integration of the retaining wall into the fence structure, providing both functional support for sloping sites and a visually cohesive boundary solution that delivers durability, longevity, and premium finish.
