Pipe Bedding 20 mm delivered in Luton
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 Luton and across Bedfordshire 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 LU postcodes, with same-week dispatch on bulk sub-base and capping. Full artic loads for airport and industrial schemes; tipper, grab and bulk-bag options for town-centre and residential infill.
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 Luton sites
- Deep trench pipe surround
- Soakaway and attenuation stone
- Free-draining backfill behind retaining structures
- Filter layers under geotextile-wrapped drainage
Airport-perimeter and industrial work here is programme-driven — capping and Type 1 in volume, sequenced to a daily load target. In the town centre and on the busway corridor it is tighter: phased drops, timed offloads and grab access on infill residential plots. Muckaway with classification is a constant on former industrial land around the Vauxhall Way corridor.
What shapes Pipe Bedding 20 mm supply in Luton
Drainage packages on airport-perimeter, industrial and town-centre residential work around Luton 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. Airport-perimeter gate control in one direction, tight busway-corridor infill in the other decide whether it arrives by tipper, grab or bulk bag. Where the same site is also producing former industrial arisings where classification is a constant, we plan the removal and the delivery together so the lorry is not running one leg empty. The same routes serve Dunstable, Houghton Regis and Harpenden.
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 areas around Luton do you cover?
Luton, Dunstable, Houghton Regis, Leighton Buzzard and the M1 corridor down towards St Albans and Hemel Hempstead, plus Hitchin and Harpenden on the same routes.
Material out as well as in, around Luton
Most deliveries into Luton 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 Luton?
Send us the tonnage, postcode and access — quote back within one working day.