Pipe Bedding 20 mm delivered in Bristol
20 mm single size is a clean, high-void stone used for deep trench surround, soakaways and attenuation layers. With no fines it drains freely and does not slump into voids, so it is the default where the surround also has to store or convey water.
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
- 20 mm single size
- Grading
- Clean, washed, fines removed
- Material
- Primary crushed rock or washed gravel
- Void ratio
- Typically around 30% — attenuation duty
- 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
- Deep trench pipe surround
- Soakaway and attenuation stone
- Free-draining backfill behind retaining structures
- Filter layers under geotextile-wrapped drainage
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 20 mm supply in Bristol
Drainage packages on housing and infrastructure groundworks around Bristol take Pipe Bedding 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
What void ratio should I design a 20 mm stone soakaway to?
Clean 20 mm single size is commonly designed at around 30% void ratio, but your drainage engineer should confirm the figure for the material and compaction assumed in the calculation.
Is 20 mm single size the same as 20 mm ballast?
No. Ballast is an all-in mix of stone and sand for concrete. 20 mm single size is a washed, clean stone with the fines removed and is not a concreting material.
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 20 mm in Bristol?
Send us the tonnage, postcode and access — quote back within one working day.