MOT Type 1 Sub-Base

Type 1 Sub Base - Available Online in Bulk Bags or Loose by the Tonne with Nationwide Delivery

In Stock

MOT Type 1 Sub-Base

Type 1 Sub Base - Available Online in Bulk Bags or Loose by the Tonne with Nationwide Delivery

In stock
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ALL QUANTITIES BELOW 10 TONNES ARE AVAILABLE IN BULK BAGS ONLY
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Product Name Qty
850kg Bulk Bags including delivery including delivery
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Loose Tonnes Obtain a bespoke quote for loose delivery

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How to measure?

Take a metric tape measure and measure the length, width and depth of the area to be filled. The length and width measurements should be recorded in metres and the depth in millimetres. Now take these figures and enter them into the quantity calculator to reveal the approximate quantity required for your job. 

Remember: 

1 metre is equivalent to 1000mm or 100cm 

1 centimetre is equivalent to 10mm


MOT Type 1 Consists of:

Generally Granite, Limestone, Basalt or Gritstone crushed. Sizes range from 40mm down to dust to create an easily compacted aggregate. MOT Type 1 also known as DOT Type 1 named after the Department of Transport (DOT) specification for granular sub-base material is the most widely used approved sub-base in the construction industry. In order for a product to be classed as 'Type 1' quality it must comply with the Department of Transport Specification for Highway Works, clause 803 (SHW 803). MOT Type 1 can be made from Granite, Limestone or clean Crushed Concrete. The product is crushed to 40mm down to dust creating an aggregate containing a range of particle sizes that is easy to compact with excellent load bearing qualities. This product is not to be confused with scalpings which have a higher fines content and subsequently less load bearing capability. MOT Type 1 is a must for any highly trafficked area and is most commonly used as a sub-base for highways, car parks, footpaths, driveways, hard standings and building bases. Any application where a firm sub-base is required needs type 1! Mainland Aggregates Ltd take pride in being one of the leading MOT Type 1 Sub Base suppliers, and can supply in bulk bags or loose by the tonne.

Ideal for:

Hard-standings, haul roads, building sub-bases, path/road/highway/driveway/patio sub-bases. A must for applications that require certified material to be used.

Availability:

Loose or Bulk Bags

Minimum Order Quantity:

10 Tonnes Loose or 1 Bulk Bag

Coverage:

1 x Bulk Bag will cover approx 5sqm at 100mm depth

Bag Weights:

850kg per bag

Stone Density:

Approx 2 tonnes per cubic metre.


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Frequently Asked Questions

What is MOT Type 1?

MOT Type 1 is a product made from crushed Granite, Basalt, Gritstone or Carboniferous Limestone (depending on source). The size range is generally 40mm down to dust.

What Can MOT Type 1 Be Used For?

MOT Type 1 is a suitable sub-base for driveways, footpaths, concrete bases, car parks, patios etc.

Is MOT Type 1 Suitable For A Driveway Sub-Base?

MOT Type 1 is perfect for driveway sub-bases where the finished surface is to be gravel or tarmac. Block Paved driveways may require a more permeable sub-base such as MOT Type 3 to comply with Sustainable Urban Drainage regulations (SUDS).

How Do I Calculate The Quantity Of MOT Type 1 I Require?

MOT Type 1 should be laid at 150mm depth when used as a driveway sub base for car traffic. Heavier loadings will require a deeper sub-base and may need to be calculated by a structural engineer. Generally path sub bases should be 75mm depth whilst patio sub bases laid at 100mm depth. Typically, one of our Bulk Bags will cover 5m2 at 100mm depth. For larger areas you may wish to use our quantity calculator located at the top right hand side of this page under the grey "How Much Will I Need" tab. Simply enter your measurements to reveal the required tonnage. Please be sure to enter the length and width figures in metres and the depth in millimetres to give the correct quantity.

How Do I Install MOT Type 1?

MOT Type 1 should be spread with a shovel and compacted with a whacker plate or vibrating roller in layers. It is important the product is properly compacted to prevent settling later on. The depth of installation will depend on the project but we generally recommend 150mm for driveways, 75mm for paths and 100mm depth for patios

What Are The Specifications For MOT Type 1?

MOT Type 1 is produced to comply with the Specification For Highways Works Clause 803 (SHW803). This ensures a consistent product that is resistant to frost heave.

Is MOT Type 1 Free Draining?

MOT Type 1 does allow the passage of water, albeit at a slower rate than other products such as MOT Type 3

Where Can I Buy MOT Type 1?

MOT Type 1 can be purchased right here! Bulk Bags can be purchased at the top right hand corner of this page. Simply enter the delivery postcode and the delivered price will be shown. You can then add the item to the shopping cart and complete the checkout process where you will be offered our available delivery dates. Larger loose orders of 10 tonnes or more will require a bespoke quote to enable us to apply any bulk discounts. A quote request can also be submitted at the top right hand corner of this page. Deliveries are usually made within 3-5 working days.