Retaining Wall Specifications Timber

This determines the necessary dimensions of the sleepers and posts.

Retaining wall specifications timber.

Member sizes and post embedment depths shall be as outlined in tables 1 and 2 for preservative treated softwood and hardwood respectively. Cantilevered tilt up walls 13. Earthquake seismic design 7. One of the most important retaining wall specifications to consider is the load that the wall will need to bear.

Timber is a preferred material for landscaping purposes. 10 batter as shown. Retaining walls are great for creating terracing and raised gardens where space is limited. In ground durability class 1 timber species or timber preservative treated to h5 should therefore be used.

Counterfort retaining walls 12. Several factors add to the load on a wall including lateral earth pressure from soil surcharge loads axial forces wind forces and impact loads. Retaining walls are perfect for creating a focal point in your garden highlighting a special feature or levelling off areas to create a flat lawn. Designing the cantilever wall stem 9.

Initially constructed from original old railway sleepers our research tells us that around 15 years was a fairly average life span for these class 1 timber hardwood walls. Pier and pile foundations 11. These retaining walls have been used for a long time in australia. The natural appeal and versatility of timber is ideal for this application.

Retaining wall systems include cantilevered round or sawn timber mass wall and crib wall construction. An engineer will be required to plan and design walls greater than one metre including the footings and drainage. Building codes and retaining walls 5. The heartwood of naturally durable species durability class 1 that are suitable for retaining walls include ironbark grey gum tallowwood forest red gum and bloodwood.

Walls up to one metre in height follow a basic design and can usually be constructed using standard proprietary wall systems. Soil bearing and stability 8. Gabion walls 16. Retaining walls up to 1 m high timber retaining walls up to one metre high can be constructed as shown in figure 1.

Wood retaining walls 14. Walls exceeding 400 mm high should have a 1. Forces on retaining walls 6. Pick a building material that will work with the look and feel of your yard.

The purpose of this technical data sheet is to provide sufficient detail to enable the correct design and. Retaining walls can be constructed with various materials from stone to wood. But a retaining wall made of timber will be straight. On a steep site they give your garden structure highlight natural features and.

Preparing a troublesome site one that includes clay soil or a natural spring for example can raise costs substantially.