Pipe Bedding 20 mm delivered in Basingstoke
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 Basingstoke and across Hampshire 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 RG21–RG29 postcodes. Artic loads for business-park earthworks, 8-wheel tippers for estate roads, grab and bulk bags for tight plots and landscaping.
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 Basingstoke sites
- Deep trench pipe surround
- Soakaway and attenuation stone
- Free-draining backfill behind retaining structures
- Filter layers under geotextile-wrapped drainage
Chalk subgrade is the local factor — arisings often behave differently to the clay further east, and capping choice matters on wet-weather working platforms. Business-park and distribution work runs on artic loads to programme; housing sites take phased plot-level bedding, sand and topsoil.
What shapes Pipe Bedding 20 mm supply in Basingstoke
Drainage packages on business-park, distribution and housing groundworks around Basingstoke 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. Business-park and distribution sites on programme, plus phased housing plots decide whether it arrives by tipper, grab or bulk bag. Where the same site is also producing chalk and clay arisings where wet-weather handling changes the plan, we plan the removal and the delivery together so the lorry is not running one leg empty. The same routes serve Andover, Alton and Newbury.
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 north Hampshire areas do you cover?
Basingstoke, Andover, Alton, Fleet, Tadley and Whitchurch, plus Newbury and Winchester on the same routes.
Material out as well as in, around Basingstoke
Most deliveries into Basingstoke 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 Basingstoke?
Send us the tonnage, postcode and access — quote back within one working day.