MOT Type 1 Sub Base - 25Kg Bag - Pack Of 20

MOT Type 1 Sub Base provides a trade-friendly, compactable aggregate designed for driveways, patio...

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B&Q - Mot Type 1 Sub Base 25Kg Bag Pack Of 5Discount Materials125Kg Total

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Product Information

Full details

The MOT Type 1 Sub Base 25kg bags (Pack of 20) are designed for both professional contractors and DIY enthusiasts who require a reliable, compactable foundation for driveways, patios, and pathways. This high-quality aggregate provides an exceptionally stable base that prevents sinking or movement in finished paving projects, though users should be prepared for the physical labor involved in handling 500kg of material in individual, manageable units.

All features

Model Part Number	1386489
Brand	B&Q

Extended Product Information

FAQs

What is the total weight of this pack?

This pack contains 20 bags of 25kg each, for a total weight of 500kg.

Can I use this for a gravel driveway?

Yes, MOT Type 1 provides an excellent stable base that prevents gravel from sinking into the soil.

Do I need a compactor machine?

For optimal results, a mechanical plate compactor is highly recommended to ensure the aggregate binds correctly.

Does the colour of the aggregate stay consistent?

As this is a natural quarried product, slight variations in colour and grading may occur between batches.

Can this be used for light landscaping?

Yes, it is suitable for paths and patios where a stable, flat surface is required.

Troubleshooting

Sub-base feels soft or bouncy after compaction

The layer is likely too thick. Excavate or break down the layer to 50-75mm and compact again with a mechanical plate compactor.

Difficulty in leveling the aggregate

Ensure the sub-grade is properly leveled and compacted before pouring the MOT. Use a rake to distribute evenly before the final pass of the compactor.

Pros and Cons

Pros

Individual bags allow for easy handling in tight spaces
Creates a solid, non-shifting foundation for paving
Suitable for both domestic and heavy-duty trade projects
Reduces the risk of structural failure in patios and driveways

Cons

Material colour and grading can vary between batches
Requires significant physical labor to move and compact
Total weight (500kg) requires adequate storage space

Setup, Compatibility & Care

To ensure the best results, clear the site of organic material and debris before laying the sub-base. A geotextile membrane should be placed between the sub-grade soil and the MOT Type 1 to prevent the aggregate from sinking into the earth over time. While the material is weather-resistant, store bags in a dry, covered area if not using them immediately to prevent excess moisture from making the bags unnecessarily heavy. Because this is a natural product, expect minor variations in stone size and coloration throughout the pack.