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Cantilever Retaining Wall Quantity Calculator
Reinforced concrete cantilever retaining wall on strip footing. Computes excavation, concrete, formwork, and reinforcement scheduled to BS 8666:2020.
Slug · cantilever_wall · v1.0
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Cantilever Retaining Wall — a worked example, measured four ways
The same assembly at default dimensions, rendered as a Bill of Quantities under each measurement standard. Switch the standard to see how the bill changes. Change the inputs in the calculator to compute your own.
CESMM4 · 13 items · units m³, t, m², m
| Code | Description | Unit | Quantity |
|---|---|---|---|
| E.4.2.5 | General excavation, maximum depth 2-5m, commencing from existing ground level | m³ | 956.75 |
| E.5.3 | Disposal of excavated material off-site | m³ | 434.19 |
| E.6.3.2 | Filling, imported selected granular material, Class 6N to SHW | m³ | 344.75 |
| E.6.2.1 | Filling, excavated material | m³ | 522.56 |
| F.1.1.1 | In-situ concrete blinding, C8/10, thickness 150mm | m³ | 11.06 |
| F.6.2.3 | In-situ reinforced concrete C32/40, cantilever retaining wall (stem and base) | m³ | 74.38 |
| G.5.1.4 | Reinforcement, high-yield steel bars to BS 4449 grade B500B, 12mm diameter, straight bars (BS 8666 shape 00; bar marks 02, 03) — preliminary schedule, confirm with detailed design | t | 2.16 |
| G.5.1.5 | Reinforcement, high-yield steel bars to BS 4449 grade B500B, 16mm diameter, straight bars (BS 8666 shape 00; bar marks 05, 06, 07, 08) — preliminary schedule, confirm with detailed design | t | 4.92 |
| G.5.2.5 | Reinforcement, high-yield steel bars to BS 4449 grade B500B, 16mm diameter, bent bars (BS 8666 shape 11; bar marks 01, 04) — preliminary schedule, confirm with detailed design | t | 2.59 |
| G.1.4 | Formwork to vertical and battered faces | m² | 225.07 |
| I.4.4.2 | Perforated land drain, HDPE, nominal bore 150mm | m | 25 |
| L.5.2 | Granular surround to pipe, 20mm single-size aggregate | m³ | 4 |
| E.7.2 | Geotextile separator, 200 g/m², including laps | m² | 22 |
Procurement take-off: the total quantity to order of each material, from the same compute. Supplier-neutral, so you buy anywhere.
- Concrete Blinding11.06 m³
- Concrete Reinforced74.38 m³
- Disposal434.19 m³
- Excavation General956.75 m³
- Fill General522.56 m³
- Fill Selected344.75 m³
- Formwork225.07 m²
- Geotextile Separator22 m²
- Pipe Land Drain25 m
- Pipe Surround4 m³
- Reinforcement9.67 t
Illustrative example at default dimensions · engine ref fe4c35 · not a tendered quantity