In construction and landscaping, the key to success of any project often depends on the strength of its foundations. Choosing the right sub-base material ensures durability, stability, and long-term performance. One of the most reliable and widely used options in the UK is MOT Type 1, also simply known as “Type 1”.
This crushed aggregate is popular for landscaping and large-scale construction projects, and its strength and versatility make it an excellent material choice. But what makes MOT Type 1 so effective, and how can it be used to achieve the best results? In this guide, we explain what Type 1 MOT is and why it is such an important building material. Finally, we cover the top five uses of Type 1 MOT in landscaping and construction.
Type 1 MOT is a graded aggregate usually made from limestone, granite, or recycled crushed concrete. It contains particles ranging from 40 mm stone down to fine dust, with the smaller particles filling the gaps between larger pieces. This helps the material pack tightly into a strong, solid base.
Compaction is the key to its performance. Once compressed, MOT Type 1 forms a firm foundation, resists movement, supports heavy loads, and drains well. The UK Ministry of Transport originally specified the material, which is why they call it “MOT.” Today, strict standards ensure consistency and quality, giving contractors a high level of trust in the integrity of the material. This means they can count on MOT Type 1 for uses from a simple garden path to a sub base for public highways.
Driveways and car parks must cope with heavy loads and frequent traffic and without a solid foundation, they quickly develop ruts, potholes, and uneven surfaces.
By using MOT Type 1 as the sub-base, you create a compacted, load-bearing layer that prevents these problems. The interlocking particles resist movement, keeping your driveway or car park stable for many years.
Its permeable nature allows natural drainage, preventing standing water that can damage the finished surface. Whether laying tarmac, concrete, or block paving, starting with MOT Type 1 ensures long-lasting results.
Order yours here: Bulk Bag Type 1 MOT Sub-Base.
Patios and paved areas are only as good as the foundations beneath them. Laying paving slabs directly on soil risks sinking, cracking, and uneven surfaces.
Landscapers always recommend Type 1 MOT as a sub-base. When compacted, it provides a level and stable platform for paving to rest on. This prevents the surface from shifting or breaking down over time, even with heavy use.
For garden pathways, MOT Type 1 also helps resist weed growth from below while ensuring proper drainage. A solid foundation of Type 1 MOT means your outdoor space remains attractive and functional for years.
Outdoor buildings such as sheds, garages, and garden rooms are increasingly popular. A common mistake is failing to prepare the right base. A shed placed directly on grass or soil may well shift and sink, leading to structural problems in the future. In contrast, a compacted layer of MOT Type 1 provides a strong and level base.
This stable base spreads the building's weight evenly, helps doors open correctly, keeps walls straight, and keeps the structure safe. Whether building a small timber shed or a larger garden office, MOT Type 1 is the essential first step.
See our product here: Type 1 MOT Sub-Base Bulk Bag.
Artificial grass provides a low-maintenance lawn that looks good all year round. However, a professional finish depends on proper groundwork.
If artificial grass is to be laid on soil, you need a stable base that resists sagging and allows water to drain. MOT Type 1 is the ideal choice. It creates a solid foundation that prevents water build-up and keeps the turf even and firm.
Typically, you add a layer of compacted sharp sand on top of the Type 1 MOT before laying the artificial grass. Together, this creates a surface that looks natural, feels solid underfoot, and withstands heavy use.
On construction sites, temporary roads and hard standing areas are essential. Vehicles and heavy machinery must navigate the site safely and avoid becoming stuck.
Not many materials can handle the constant pressure from diggers, trucks, and loaders. Engineers created MOT Type 1 for this purpose. Once compacted, it resists rutting and deformation, even under extreme loads.
This makes it the industry standard for robust site access roads, storage areas, and working platforms. With Type 1 MOT, your project can continue smoothly and safely in all conditions.
Why choose MOT Type 1 over other aggregates? Here are the main reasons:
At Peppard Building Supplies, we stock high-quality Type 1 MOT Sub-Base in convenient bulk bags (minimum 850kg). It is ideal for both the Trade and DIY.
Our MOT Type 1 is suitable for many projects, including building sub bases for floors, shed and garden rooms, driveway sub bases, and construction site preparation. It offers the strength and reliability you need.
Order now: Bulk Bag Type 1 MOT Sub-Base.
Whatever the size of your project, using MOT Type 1 ensures a strong, long-lasting result. By choosing the right sub-base, you protect your work and guarantee durability for years to come.
Ready to begin? Order your Bulk Bag Type 1 MOT Sub-Base today from Peppard Building Supplies and give your project the foundation it deserves.
