Type 1 Limestone — Delivered.
MOT Type 1 vs DOT Type 1, explained.
Buying Type 1 for a sub-base? Before you order, understand the difference between certified MOT Type 1 and the cheaper DOT Type 1 alternative — and get the right material for your job at the best delivered price.
Order Type 1 online
Both grades, delivered loose to your site
Certified gradeMOT Type 1
Highway specification
Certified 40mm-to-dust limestone sub-base for roads, driveways and commercial builds.
View & get priceBest valueDOT Type 1
Value alternative
Uncertified 40mm-to-dust limestone — ideal for patios, paths and domestic sub-bases at a lower cost.
View & get priceFrom our quarries to your site
Our own fleet delivers Type 1 limestone loose, direct from the quarry
What is Type 1 Limestone?
Type 1 is a crushed limestone aggregate, graded from 40mm down to dust. When compacted in layers, the dust binds the larger stones together to form a hard, load-bearing sub-base — the foundation beneath roads, driveways, patios and paths.
Both MOT Type 1 and the cheaper DOT Type 1 are the same crushed limestone. The difference is certification and grading control — which decides whether the material is right for a highway or just for your back garden.
Two grades, one material
- Both are 40mm-to-dust crushed limestone
- Both compact to a firm sub-base
- MOT Type 1 is highways-certified
- DOT Type 1 is the value alternative
MOT Type 1 vs DOT Type 1
Choose the right grade for your project
Side-by-side
| Attribute | MOT Type 1 | DOT Type 1 |
|---|---|---|
| Specification | SHW Clause 803 certified | Uncertified grade |
| Grading | 40mm down to dust | 40mm down to dust |
| Compaction | Excellent — hard, stable base | Good — firm domestic base |
| Best for | Roads, driveways, commercial | Patios, paths, garden projects |
| Price | Premium grade | Lower cost alternative |
Which one should I choose?
Roads & commercial
Choose MOT Type 1. Certified to highway spec for traffic loads and building control sign-off.
Driveways
Choose MOT Type 1 for vehicle load. DOT Type 1 works for light foot-traffic drives.
Patios & paths
Choose DOT Type 1. Same firm sub-base at a lower price — ideal where no spec is required.
Why order from Bulk Aggregates
Fast delivery
Same or next-day in most postcodes
All-in pricing
Price includes delivery & VAT
Quality assured
Right material, every load
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Type 1 Limestone FAQ
What is Type 1 Limestone?
Type 1 is a crushed limestone aggregate graded 40mm down to dust. When compacted it forms a hard, load-bearing sub-base used under roads, driveways, patios and paths.
What is the difference between MOT Type 1 and DOT Type 1?
MOT Type 1 (sometimes "DOT Type 1" in the certified sense) is tested and certified to the Highway Authority specification (SHW Clause 803), making it suitable for roads and commercial construction. The cheaper "DOT Type 1" alternative is the same crushed limestone but uncertified — fine for domestic projects where a highways spec isn't required.
Which one do I need for a driveway?
For a driveway that will take vehicle traffic, MOT Type 1 is recommended for the strongest, most stable sub-base. For lighter use (patio, path, shed base) DOT Type 1 offers the same look and good performance at a lower price.
How much do I need?
A typical sub-base is laid 100–150mm deep. As a guide, 1 tonne covers roughly 5m² at 100mm compacted depth. Use our tonnage calculator, or get a quote and we'll confirm the right quantity.
Do you deliver to my area?
We deliver Type 1 limestone across our coverage area with same-day or next-day delivery available in many postcodes. Enter your postcode in the quote form for an instant delivered price and earliest delivery date.
Get your Type 1 price in seconds
Enter your postcode and quantity for an instant delivered price — MOT Type 1 or the cheaper DOT Type 1 alternative.