Pipe Bedding 4/20 mm delivered in Preston
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 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
- 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 Preston 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
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 4/20 mm supply in Preston
Drainage packages on infrastructure and link-road work plus phased housing sites around Preston 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. 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
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.
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 4/20 mm in Preston?
Send us the tonnage, postcode and access — quote back within one working day.