How much Type 1 is needed per square metre of driveway?
When planning a new driveway, you’ll need a layer of sub base material. In the UK, Type 1 is the most popular sub base material for driveways. But how much Type 1 is needed per square metre of driveway?
What is type 1 for a driveway?
There are several types of sub base material available, each is suitable for different uses. Type 1 is a commonly used sub base material and is suitable for a wide range of applications.
Type 1 sub base usually consists of a mixture of rock and stone. It typically provides a stable base layer for driveways (as well as roads and other hard surfaces).
How much Type 1 is needed per square metre of driveway?
You’ll usually need around 250kg of Type 1 sub base per square metre of driveway, based on a depth of 15cm.
To calculate how much Type 1 you need for your whole driveway follow these steps:
- Measure the length and width of your driveway area
- Work out how many square metres you need to cover
- Multiply that number by 250kg
If you’re planning to lay a sub base layer of more than 15cm then you’ll need to adjust the calculations. We wouldn’t recommend laying a sub base layer of less than 15cm for a driveway.
Top tip: Ideally, you need to apply your Type 1 in two layers or 7.5cm and use a vibrating plate to compact each layer as you go.
Are you planning a new driveway? Don’t miss a thing with our new driveway checklist.
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