For natural durable retaining walls and edging products, our hardwood and pine sleepers are readily available. Coming in many different sizes and lengths makes them an easy product for transportation and installation.
Timber retaining walls have been a statement for structural landscapers and home gardeners for decades. Timber is sourced from responsible logging sites and renewable growth forests. Not only is your sleeper wall is going to look great, but it’s working towards a more sustainable future.
Timber sleepers are treated to a hazard level of H4 and are suitable for in ground contact use. The use of a treatment will deter pests and prevent natural decay for years to come. Drainage and silt protection is also a must, this will prevent wet rot caused by water sitting behind the retaining wall. It is vital to install adequate drainage behind any retaining wall to aid in the dispersion of water; this can be achieved with a weed mat being fixed to the back side of the retainer wall. Drainage placed behind the wall should be 10-20mm clean, dirt-free drainage aggregate such as river stones or coarse crushed rock. Encasing the drainage material with a Geo Cloth will help prevent any finer materials getting through. Sleeper walls can be installed by homeowners if a few rules are adhered to.
A retaining wall is a ‘class 10b’ (non-habitable) structure under the Building Code of Australia (forming volumes one and two of the National Construction Code).
Queensland building regulations advise you will not need building approval for a retaining wall if: