Sleeper Comparison
Sleeper Comparison Chart
Side-by-side comparison of FPM concrete sleeper types — dimensions, load ratings, finishes and recommended applications.
Compare FPM sleeper types to find the right product for your project.
Technical Resources
Engineering & Sleeper
Specifications
Engineering certificates, max wall height tables and technical specifications for FPM concrete sleeper retaining walls. Required documentation for Victorian council permit applications.
Structural Specifications
Maximum Wall Height by Sleeper & Post Length
The table below shows the maximum retaining wall height achievable for each concrete sleeper thickness and post embedment length, based on FPM's engineering computations. Select the post length that meets or exceeds your required wall height.
Concrete Sleepers — 75mm
| Post Length | Reinforcement | Max Wall Height |
|---|---|---|
| 1.2m | 2-N10 | 4.0m |
| 1.5m | 2-N10 | 3.4m |
| 1.8m | 2-N10 | 2.4m |
| 2.0m | 2-N12 | 2.0m |
| 2.4m | 2-N12 | 1.4m |
| 2.7m | 3-N10 | 1.0m |
| 3.0m | 3-N10 | 0.6m |
Concrete Sleepers — 100mm
| Post Length | Reinforcement | Max Wall Height |
|---|---|---|
| 1.2m | 2-N10 | 4.0m |
| 1.5m | 2-N10 | 4.0m |
| 1.8m | 2-N10 | 4.0m |
| 2.0m | 2-N12 | 3.0m |
| 2.4m | 2-N12 | 2.4m |
Engineering note: Maximum wall heights are based on FPM's structural engineering computations for standard residential conditions. Site-specific factors (soil type, surcharge loads, water table) may reduce these values. Always consult a qualified engineer for walls exceeding 1.0m or in non-standard conditions. Download the full engineering computations below.
Engineering Certificate
Engineering Computations — Concrete Sleeper Retaining Walls
Structural engineering computations for FPM concrete sleeper retaining walls. Required for council permit applications in Victoria.
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Certified structural engineering computations. Provide this document to your council when applying for a retaining wall permit.
Council Permits
Engineering certificates are typically required for retaining walls over 1.0m in Victoria. Check with your local council for specific requirements.
Choosing the Right Sleeper
Use the wall height table above to match your required wall height to the correct post length and sleeper thickness for your project.
Need More Documents?
Call FPM on 0431 235 919 or 0421 370 700 if you need additional technical specifications or project-specific engineering advice.
Questions About Your Project?
Our team can advise on engineering requirements, product selection and installation.