Pipe Bedding 4/20 mm delivered in Oxford
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 Oxford and across Oxfordshire 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. Stocked aggregates, bedding and topsoil are usually on site within 24–72 hours across OX postcodes. City-centre drops inside the bus-gate network are booked to a timed early-morning window; Harwell, Culham, Didcot and Bicester take full tipper or artic loads to your call-off dates.
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 Oxford 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
Central Oxford work is dominated by restricted access — narrow college lanes, bus gates and conservation-area constraints mean grab and bulk-bag drops often beat an 8-wheel tipper. Out of town it flips: science-park and housing plots take full artic loads of Type 1 and capping against a call-off programme, with muckaway running back to licensed facilities in the same movement.
What shapes Pipe Bedding 4/20 mm supply in Oxford
Drainage packages on college estate work, science parks and housing plots around Oxford 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. Narrow college lanes, bus gates and conservation-area constraints in the centre decide whether it arrives by tipper, grab or bulk bag. Where the same site is also producing muckaway running back to licensed facilities on the same movement as delivery, we plan the removal and the delivery together so the lorry is not running one leg empty. The same routes serve Abingdon, Bicester and Didcot.
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.
Can you deliver inside Oxford's bus gates and conservation areas?
Yes. We schedule early-morning timed windows and use grab lorries, HIABs or bulk bags where an 8-wheel tipper cannot turn or discharge. Tell us the access constraint when you request a quote.
Material out as well as in, around Oxford
Most deliveries into Oxford 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 Oxford?
Send us the tonnage, postcode and access — quote back within one working day.