Cement & Aggregates
MOT Type 1 Sub-base delivered across Hertfordshire
MOT Type 1 is a crushed stone sub-base, graded from 31.5 mm (often sold as 40 mm) down to dust, that compacts into a firm, free-draining layer under driveways, patios, paths and floor slabs.
Builders, trades and self-builders in Hertfordshire can order MOT Type 1 for delivery to Watford, Berkhamsted and the towns in between.

Hertfordshire at a glance
- Covering
- 18 towns across Hertfordshire
- Postcode areas
- WD, HP, SG, AL, EN, CM
- Delivery
- Standard mainland delivery
- How it arrives
- Bulk bags or tipped loads
- Neighbouring areas
- Bedfordshire, Buckinghamshire, Greater London
MOT Type 1 Sub-base we supply in Hertfordshire
- HardcoreBroken masonry fill for bulking up ground.
- Bulk bags and loose loadsBulk bags for most jobs; loose loads where access and volume suit.
- MOT Type 1 sub-baseGraded crushed stone to Specification for Highway Works clause 803.
- Recycled Type 1Crushed recycled aggregate graded as Type 1, where suitable.
- ScalpingsCheaper granular fill for less demanding areas.
MOT Type 1 Sub-base delivered in Hertfordshire towns
- MOT Type 1 Sub-base in Watford
- MOT Type 1 Sub-base in Hemel Hempstead
- MOT Type 1 Sub-base in Stevenage
- MOT Type 1 Sub-base in St Albans
- MOT Type 1 Sub-base in Welwyn Garden City
- MOT Type 1 Sub-base in Cheshunt
- MOT Type 1 Sub-base in Hatfield
- MOT Type 1 Sub-base in Bishop's Stortford
- MOT Type 1 Sub-base in Borehamwood
- MOT Type 1 Sub-base in Hitchin
- MOT Type 1 Sub-base in Hoddesdon
- MOT Type 1 Sub-base in Letchworth Garden City
- MOT Type 1 Sub-base in Harpenden
- MOT Type 1 Sub-base in Bushey
- MOT Type 1 Sub-base in Hertford
- MOT Type 1 Sub-base in Rickmansworth
- MOT Type 1 Sub-base in Potters Bar
- MOT Type 1 Sub-base in Berkhamsted
Estimating your MOT Type 1
A 4 × 4 m area at 150 mm compacted is 2.4 m³. At about 2.1 tonnes per cubic metre plus 10% that is 5.5 tonnes, or around 7 bulk bags. Try the sub-base calculator
Delivery to Hertfordshire: what helps
Bulk bags are usually crane-offloaded where access allows; very large quantities can be priced as loose tipped loads where access allows. Our standard mainland delivery area covers Hertfordshire.
- Tell us the best drop point, such as a driveway, front garden or the kerb, and whether a lorry can park close to it.
- If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.
- If neighbours share the access, it helps to let them know a lorry is coming.
Choosing MOT Type 1
Virgin or recycled?
Recycled Type 1 can be a good option where it meets the specification; ask what your project or local authority requires.
Compaction
Lay and compact in layers with a plate compactor. Allow extra material because it compacts down.
MOT Type 1 Sub-base questions
What is the difference between Type 1 and scalpings?
Type 1 is graded to a specification so it compacts into a strong, stable layer. Scalpings are less controlled and suit less demanding areas.
How deep should a driveway sub-base be?
Around 150 mm of compacted MOT Type 1 is common for domestic drives on firm ground; soft ground or heavier vehicles need more. Follow your installer or the paving maker's guidance.
Is there a minimum order for delivery to Hertfordshire?
There is no fixed minimum. For very small orders we will tell you honestly if the delivery cost outweighs the materials, so you can decide.
Do you deliver MOT Type 1 to trades and homeowners in Hertfordshire?
Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.
MOT Type 1 Sub-base in neighbouring areas
- MOT Type 1 Sub-base in Bedfordshire
- MOT Type 1 Sub-base in Buckinghamshire
- MOT Type 1 Sub-base in Greater London
- MOT Type 1 Sub-base in Surrey
- MOT Type 1 Sub-base in Essex
More materials delivered across Hertfordshire
- Damp Proofing & Membranes in Hertfordshire
- Metal Stud & Ceiling Systems in Hertfordshire
- Mineral Wool Insulation in Hertfordshire
- OSB, MDF & Chipboard in Hertfordshire
- Adhesives, Sealants & Foam in Hertfordshire
- Roofing Materials in Hertfordshire
- Underground Drainage in Hertfordshire
- Building & Sharp Sand in Hertfordshire
Send your list, get a delivered price
Tell us what you need and where it is going. We check the quantities and come back with a delivered price before you commit.
