6F5 Capping delivered in Peterborough
6F5 is a coarse graded capping material to Specification for Highway Works Clause 613, used to build a working platform over weak subgrades before the sub-base goes down. On soft ground it is far more economical than importing extra Type 1, and it spreads and compacts into a stable layer that protects the formation through the wet.
Into Peterborough and across Cambridgeshire we supply it loose by tipper, by grab lorry where a stockpile has to be loaded or reached over a boundary, or in bulk bags for plots a lorry can't discharge into. Stocked lines are typically delivered within 24–72 hours across PE postcodes. Artic and 8-wheel tipper loads for volume earthworks on the A1/A47 corridors; grab and bulk bags for restricted plots in the city centre and older suburbs.
Specification
- Grading
- Coarse graded, nominal 0–125 mm
- Specification
- SHW Clause 613 capping (Class 6F5)
- Material
- Primary crushed rock
- Typical layer thickness
- Commonly 300–600 mm, per design
- Supply formats
- Loose tipper, artic bulk loads
- Typical load
- 16–20 t tipper, 28–29 t artic
Lead time
Stocked line — most postcodes in England and Wales are dispatched within 24–72 hours of order confirmation. Scotland and Highland deliveries are typically 3–5 working days. Programmed civils schedules are booked in advance and delivered to your call-off dates.
Typical uses on Peterborough sites
- Capping layer over weak or CBR-deficient subgrades
- Temporary haul roads and site working platforms
- Highways and adopted road construction to SHW spec
- Bulk fill and level-up on earthworks schemes
Fen-edge ground conditions push a lot of Peterborough work towards capping and geotextile working platforms before any sub-base goes down, so 6F5 and 6F2 move in volume here. Plot-scale drainage packages take bedding stone in daily call-offs, and land-drainage and soil-import work draws on BS3882 topsoil through the growing season.
What shapes 6F5 Capping supply in Peterborough
Fen-edge ground that usually needs a capping and geotextile platform first is exactly why 6F5 Capping moves in volume around Peterborough — it builds a working platform that takes plant and lorry traffic before any sub-base goes down. Open fen plots with daily call-off drainage packages decide whether it arrives by tipper, grab or bulk bag. Where the same site is also producing arisings from plot-scale drainage and soil-import work, we plan the removal and the delivery together so the lorry is not running one leg empty. The same routes serve Wisbech, Stamford and Huntingdon.
Questions we get asked
What is the difference between 6F5 and 6F2 capping?
Both are capping materials under SHW Clause 613. 6F5 is typically a coarser graded fill used where a thicker, robust platform is needed; 6F2 is the finer of the two gradings and is widely used as general capping fill. Follow your earthworks specification for which class is required.
How thick should a 6F5 capping layer be?
Thickness is a design decision based on subgrade CBR and the loading above — commonly 300–600 mm. Your geotechnical engineer should specify it; we supply the tonnage against the design.
Do you deliver into the Fens as well as Peterborough itself?
Yes — Wisbech, March, Whittlesey, Spalding and the surrounding villages are on our standard Peterborough routes.
Material out as well as in, around Peterborough
Most deliveries into Peterborough pair with a removal: the lorry takes your arisings to a licensed facility and comes back loaded, so you pay for one movement rather than two.
Need 6f5 capping in Peterborough?
Send us the tonnage, postcode and access — quote back within one working day.