Pipe Bedding 20 mm delivered in Preston
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 Preston and across Lancashire 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. 24–72 hours on stocked lines across PR postcodes. Artic loads for infrastructure and industrial platforms, 8-wheel tippers for estate work, grab and bulk bags for 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 Preston sites
- Deep trench pipe surround
- Soakaway and attenuation stone
- Free-draining backfill behind retaining structures
- Filter layers under geotextile-wrapped drainage
Wet-weather working is the recurring theme in Lancashire — capping and geotextile platforms get used heavily, and programmes are planned so material lands when the site can take it. Infrastructure and link-road work takes volume sub-base; housing sites take phased bedding, sand and topsoil.
What shapes Pipe Bedding 20 mm supply in Preston
Drainage packages on infrastructure and link-road work plus phased housing sites around Preston 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. Programmes planned so material lands when the site can actually take it decide whether it arrives by tipper, grab or bulk bag. Where the same site is also producing wet arisings where timing the movement matters as much as the route, we plan the removal and the delivery together so the lorry is not running one leg empty. The same routes serve Blackburn, Chorley and Blackpool.
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.
Which Lancashire areas do you deliver to?
Preston, Leyland, Chorley, Blackburn, Blackpool, Kirkham and Lancaster on the same haulage routes.
Material out as well as in, around Preston
Most deliveries into Preston 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 Preston?
Send us the tonnage, postcode and access — quote back within one working day.