6F5 Capping delivered in York
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 York and across North Yorkshire 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 within 24–72 hours across YO postcodes. Timed early-morning windows for city-centre and conservation-area drops; tipper and artic loads for fringe, village and commercial schemes.
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 York 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
Inside the walls, deliveries are timed, permitted and often grab or bulk-bag only. On the city fringe and at York Central it opens up to full loads and programmed earthworks. Flood-risk and archaeology conditions frequently dictate the sequence, so phased call-offs beat single bulk drops.
What shapes 6F5 Capping supply in York
River-terrace ground with flood-risk and archaeology conditions is exactly why 6F5 Capping moves in volume around York — it builds a working platform that takes plant and lorry traffic before any sub-base goes down. Timed, permitted, often grab or bulk-bag only inside the walls decide whether it arrives by tipper, grab or bulk bag. Where the same site is also producing arisings sequenced around flood-risk and archaeology conditions, we plan the removal and the delivery together so the lorry is not running one leg empty. The same routes serve Harrogate, Selby and Malton.
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.
Can you deliver inside York's city walls?
Yes — with timed, permitted windows and grab, HIAB or bulk-bag offload where a tipper cannot access or discharge.
Material out as well as in, around York
Most deliveries into York 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 York?
Send us the tonnage, postcode and access — quote back within one working day.