Pipe Bedding 4/20 mm delivered in Bristol
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 Bristol and across South West England 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. Tipper and grab loads delivered across Bristol, North Somerset and South Gloucestershire within 24–72 hours. Bulk-bag drops and timed windows arranged for Old City and harbourside sites with restricted access.
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 Bristol 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
Bristol's pipeline is dominated by housing and infrastructure groundworks — sub-base, bedding stone and capping in, muck and hardcore out — with WAC testing needed on many of the city's former industrial plots.
What shapes Pipe Bedding 4/20 mm supply in Bristol
Drainage packages on housing and infrastructure groundworks around Bristol 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. Hill-side streets and phased housing parcels decide whether it arrives by tipper, grab or bulk bag. Where the same site is also producing made ground on ex-industrial plots that routinely needs WAC testing, we plan the removal and the delivery together so the lorry is not running one leg empty. The same routes serve Bath, Weston-super-Mare and Clevedon.
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.
How quickly can you deliver into central Bristol?
Stocked aggregates and bedding usually land within 24–72 hours, with timed windows for harbourside and Old City sites booked a couple of days ahead.
Material out as well as in, around Bristol
Most deliveries into Bristol 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 Bristol?
Send us the tonnage, postcode and access — quote back within one working day.