Utility Access Chamber Quantity Calculator
Utility access chamber from a ten-type catalogue spanning BT/Openreach jointing chambers, water meter chambers, valve chambers, and cable draw pits, with BS EN 124 frame and cover. Computes chamber unit (Nr), cover and frame, excavation, granular surround, and disposal.
Slug · utility_chamber · v1.0
Paid tier
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Utility Access Chamber — 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 · 10 items · units sum, nr, m³
| Code | Description | Unit | Quantity |
|---|---|---|---|
| A.4.3 | Provisional sum (Statutory undertaker): BT/Openreach Jointing Chamber Type 2 (JC2), 915 × 445mm plan, 915mm internal depth, to BT NWK Build Practice / Openreach PIA | sum | 1 |
| A.4.3.fix | Attendance on statutory undertaker: BT/Openreach Jointing Chamber Type 2 (JC2), 915 × 445mm plan, 915mm internal depth, to BT NWK Build Practice / Openreach PIA | nr | 1 |
| A.4.1 | Provisional sum (Prime Cost): Cover and frame, ductile iron to BS EN 124, B125 loading, 815mm clear opening | sum | 1 |
| A.4.1.fix | Fixing only: Cover and frame, ductile iron to BS EN 124, B125 loading, 815mm clear opening | nr | 1 |
| E.4.3.4 | Excavation for foundations, maximum depth 1-2m | m³ | 5.15 |
| E.5.3 | Disposal of excavated material off-site | m³ | 1.12 |
| E.6.3.2 | Filling, imported selected granular material, Class 6N to SHW | m³ | 0.11 |
| E.6.2.1 | Filling, excavated material | m³ | 4.03 |
| E.6.5.1 | Filling, imported sub-base, Class 6N per SHW 601 Table 6/1 row 6N | m³ | 0.17 |
| L.5.2 | Granular surround to pipe, 20mm single-size aggregate | m³ | 0.57 |
Procurement take-off: the total quantity to order of each material, from the same compute. Supplier-neutral, so you buy anywhere.
- Disposal1.12 m³
- Excavation Foundation5.15 m³
- Fill General4.03 m³
- Fill Selected0.11 m³
- Fill Sub Base0.17 m³
- Manhole2 nr
- Manhole2 sum
- Pipe Surround0.57 m³
Illustrative example at default dimensions · engine ref f132e1 · not a tendered quantity