Pipe Bedding 4/20 mm delivered in London
4/20 mm graded bedding is the workhorse size for larger-diameter and deeper drainage. The wider grading gives strong interlock and good haunch support under 225 mm and above, and it places quickly in volume — which matters when a trench run is measured in hundreds of metres rather than tens.
Into London and across Greater London 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. Same-week dispatch on stocked lines to all 32 boroughs and the City, with most orders on site within 24–72 hours. Tipper, grab, HIAB and bulk-bag options for restricted-access sites in Zones 1–2, plus night and weekend windows where daytime access is not practical.
Specification
- Nominal size
- 4/20 mm graded
- Typical use class
- Bedding, haunch and surround
- Material
- Primary crushed rock or gravel
- Compaction
- Strong interlock, good haunch support
- Supply formats
- Loose tipper, grab lorry, artic, bulk bag
- 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 London sites
- Bedding and surround to 225 mm and larger drainage
- Deep trench work where haunch support is critical
- High-volume adopted sewer and highway drainage runs
- Attenuation and soakaway fill where void ratio matters
London demands a supplier that understands logistics as well as materials. Most central drops are timed to 30-minute windows with grab or HIAB access, and our hauliers operate FORS Silver, ULEZ and DVS-compliant vehicles for schemes that require compliant transport. Muckaway is the other half of the job here — constrained sites need muck off before stone can come on.
What shapes Pipe Bedding 4/20 mm supply in London
Drainage packages on basement digs, borough highway packages and public-realm schemes around London take Pipe Bedding 4/20 mm in daily call-offs rather than one bulk drop, so bedding lands as each run is dug rather than sitting in the way. Timed 30-minute delivery windows, ULEZ and DVS-compliant vehicles and single-lane mews accesses decide whether it arrives by tipper, grab or bulk bag. Where the same site is also producing clay and made ground that usually needs classifying before a disposal route can be booked, we plan the removal and the delivery together so the lorry is not running one leg empty. The same routes serve Croydon, Watford and Romford.
Questions we get asked
Is 4/20 mm suitable for adopted sewers?
It is widely used for adopted drainage bedding and surround, but the size and class must match the adopting authority's detail and your engineer's specification. We can supply grading and test data to support submission.
Can you deliver 4/20 mm in artic loads?
Yes — for bulk civils programmes we deliver 28–29 tonne artic loads direct to site on a booked call-off schedule, which is the lowest cost per tonne where access allows.
Do you deliver inside the Congestion Charge zone?
Yes — we run ULEZ and DVS-compliant vehicles and coordinate Zone 1 drops around the 07:00–22:00 charging window, or schedule night deliveries for low-disruption sites.
Material out as well as in, around London
Most deliveries into London 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 pipe bedding 4/20 mm in London?
Send us the tonnage, postcode and access — quote back within one working day.