TIMBER
RETAINING WALLS.
Natural timber finishes. Substantial landscape works. Installation planned around drainage, ground conditions and future maintenance.
01 · CLEAR PROJECT FIT
Timber retaining for a defined construction package.
Our focus is installation packages with clear wall extents, retained levels, access requirements and construction responsibilities. We work with owners, builders and project teams to establish those details before confirming the quotation and programme.
For an existing wall, the assessment also considers demolition, retained ground, nearby structures, fencing and reinstatement requirements.
02 · GROUND CONDITIONS & STRUCTURAL LOADING
The wall starts with the ground and the loads.
Ground conditions across Melbourne’s west and Western Victoria can vary considerably. Where clay soils are present, the soil classification, geotechnical information and project engineering need to address the conditions at the actual wall location.
Retained height, terrain, nearby buildings, driveways, fences and other surcharge loads inform the wall design. Where steel H-beam posts are specified, their section, spacing, footing dimensions and embedment depths must follow the project engineering.
We review the available drawings, soil information and service constraints so excavation and installation requirements can be included in the construction scope.
03 · TIMBER, STEEL & SERVICE-LIFE CONSIDERATIONS
Specify the materials for their working environment.
Timber species, structural grade, sleeper dimensions and preservative treatment need to suit the designed application and exposure conditions. Steel posts and associated components must also match the project specification.
Treated timber has a finite service life. Its performance depends on the selected material, treatment, moisture exposure, drainage, workmanship and ongoing maintenance. We discuss these considerations alongside the appearance of the wall and access for future maintenance or replacement.
Material selection is resolved before procurement so the installation follows the agreed specification.
04 · DRAINAGE & SITE INTERFACES
Coordinate the water behind and above the wall.
The drainage system forms part of the retaining package. Drainage aggregate, separation or membrane details, subsoil drains, backfill and the discharge arrangement need to be coordinated with the engineered design and surrounding works.
Surface runoff, existing drainage, boundaries and nearby services must also be considered. The quotation identifies responsibility for excavation, drainage installation, outlet connections, backfill and reinstatement.
For replacement work, we review existing drainage and access before defining what is removed, retained or rebuilt.
05 · CONSTRUCTION & PROJECT COORDINATION
A planned sequence from setout to reinstatement.
Before mobilisation, we confirm the current drawings, wall alignment, top and bottom levels, access and agreed responsibilities for service identification, approvals and inspections.
Construction is sequenced around excavation, footing preparation, steel installation, sleeper placement, drainage and backfill. Where the wall forms part of a larger build, we coordinate the retaining works with adjacent trades and the project programme.
If ground conditions or site interfaces differ from the agreed information, we raise the issue and document the required response with the responsible parties before proceeding with the affected work.
06 · PRICING & SCOPE
Send the information that defines the package.
Accurate pricing starts with a clear construction brief. For a substantial timber retaining project, send:
- Site address and project contact.
- Current structural drawings, specifications and wall schedules.
- Terrain profiles or survey levels, including proposed top and bottom of wall levels.
- Wall lengths, heights and the extent of demolition or replacement.
- Available geotechnical reports and underground service information.
- Nearby structures, driveways, fencing and other loading requirements.
- Machine access widths, delivery restrictions and working-space constraints.
- Drainage outlet information, required construction dates and staging requirements.
We review this information to define materials, foundations, excavation, drainage, spoil handling and reinstatement. Engineering, permits, inspections and works by others are identified in the inclusions and exclusions, with assumptions and unresolved items made clear.
If engineering is still being developed, include the available plans, site photographs and proposed wall dimensions so we can identify the information needed to progress the package.
Ready to define your timber retaining package?
Send your drawings and site information for a construction scope review. We’ll clarify the outstanding details and confirm the next step towards an itemised quotation.
Request a timber retaining package assessment ↗
Email plans to info@outwestretainingwalls.com.au or call 0401 671 335.