Pipe Bedding 4/20 mm delivered in Chelmsford
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 Chelmsford and across Essex 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 lines within 24–72 hours across CM postcodes. Artic loads for A12-corridor commercial sites, 8-wheel tippers and grab for estate and city-centre work.
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 Chelmsford 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
Growth-area housing dominates: drainage packages, estate roads and plot finishing on a rolling programme. City-centre regeneration adds constrained, permit-controlled drops. London clay arisings are the norm, so classification and muckaway routing are planned alongside supply rather than after it.
What shapes Pipe Bedding 4/20 mm supply in Chelmsford
Drainage packages on growth-area housing and city-centre regeneration around Chelmsford 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. Rolling housing programmes plus constrained permit-controlled city-centre drops decide whether it arrives by tipper, grab or bulk bag. Where the same site is also producing London clay arisings routed and classified alongside supply, not after it, we plan the removal and the delivery together so the lorry is not running one leg empty. The same routes serve Braintree, Basildon and Brentwood.
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 central Essex areas do you deliver to?
Chelmsford, Braintree, Witham, Maldon, Billericay, Brentwood and Basildon on the same routes.
Material out as well as in, around Chelmsford
Most deliveries into Chelmsford 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 Chelmsford?
Send us the tonnage, postcode and access — quote back within one working day.