Granite Setts and Cobbles

Yes, granite setts are highly suitable for driveways due to their density, strength and ability to withstand vehicle loads over time. They are widely used in the UK for both domestic and heavier-duty driveway applications when installed correctly.

A proper installation includes a well-compacted MOT Type 1 sub-base, typically around 150 mm to 200 mm for driveway use, followed by a full mortar bed to provide continuous support. For sawn granite setts, applying a slurry primer to the underside is strongly recommended, as this improves bonding and reduces the risk of future movement. For a full step-by-step guide, see How to Lay Granite Setts for a Driveway.

Granite setts are generally more expensive than standard paving slabs due to both the material and the labour required for installation. Prices typically vary depending on size, thickness and finish.

Smaller setts require more units per square metre and more jointing work, which can increase overall installation cost. Pricing is also influenced by factors such as groundwork preparation and layout complexity. For a detailed breakdown, see Granite Setts Cost per m².

Common granite sett sizes include 100 x 100 and 100 x 200, as well as mixed size options with a width of 155 and lengths of 350, 250 and 150. These provide flexibility in layout, from structured coursed patterns to more traditional mixed designs.

For most residential driveways, 50 mm thickness is already very suitable and performs well under normal domestic use. For heavier traffic or more demanding conditions, 80 mm and 100 mm thicknesses are recommended, offering additional strength and long-term stability.

A stable base is essential for long-term performance. A compacted MOT Type 1 sub-base is typically used, followed by a full mortar bed to support the setts evenly. This ensures the paving can handle load without settlement.

Jointing is equally important, as it locks the setts together and helps prevent water ingress. Consistent joint spacing and proper filling are key to maintaining both structural integrity and appearance over time.

Granite setts generally do not require sealing, as granite is a dense natural stone with good resistance to staining and weathering. While sealing can be used in certain cases, it is not essential for normal driveway use.

Maintenance is straightforward, usually involving regular sweeping and occasional washing. A low-pressure washer can be used for deeper cleaning if required. Frequent sealing is not necessary and typically provides limited long-term benefit.

Granite setts are extremely durable and can last for several decades when installed correctly. In most residential driveway applications, a lifespan of 30 to 50 years is entirely achievable.

The longevity depends mainly on the quality of the installation, including the sub-base, bedding and jointing. The stone itself is highly durable, and most long-term issues are related to groundwork rather than the material.

Cropped granite setts are split rather than precisely cut, resulting in a more rustic and traditional appearance with greater variation in shape and surface.

Sawn granite setts are machine cut for more consistent sizing and cleaner edges. Within sawn setts, the two main finishes are sawn and flamed, which provides a textured surface for better grip, and sawn and tumbled, which softens the edges to create a more aged and balanced appearance.