Blue Black Granite Cobbles 200x100 2CM | 500 Pcs 10 Sqm Bulk Pallet

Introduce a clean geometric layout, high-load durability, and a striking dark palette to your property with premium Blue Black Granite Cobbles 200x100 2CM. Supplied by Paving and Slabs Ltd, this cost-effective bulk trade pallet contains 500 individual machine-cut pieces configured to cover a 10 square metre (10 Sqm) footprint. Crafted from high-density natural granite, these rectangular setts feature a deep charcoal-to-black colorway that offers excellent contrast alongside light-coloured masonry, render, and modern timber designs across the UK.

Engineered to provide professional consistency, each stone block is machine-cut for clean, uniform sizing that speeds up onsite installation. The surface is treated with an advanced flamed finish—a thermal process that fractures the stone texture at a microscopic level to create a highly textured, slip-resistant face. This high-friction grip ensures that driveways, courtyard aprons, and garden paths stay safe to walk and drive on through damp autumn weather and icy winter frost cycles.

Elongated Design Flexibility for Driveway Aprons & Modern Borders

The rectangular 200x100mm layout is highly valued by UK landscape architects because it opens up classic interlocking patterns that square blocks cannot achieve. Arrange these setts in a structural 45° or 90° herringbone bond to distribute vehicular weight evenly across driveways, or lay them in a running stretcher bond to elongate garden walkways. They also make an ideal decorative border framing larger patio spaces, creating a premium outline alongside smooth porcelain or light sandstone flags.

To match these blocks with complementary paving options, browse our full Paving Slabs catalog or check out our high-performance Driveway Paving and Pathway Paving lines. For a beautiful contrast, pair these black granite setts with smooth Porcelain Paving Slabs or light-toned Grey Paving Stones. If you are handling the groundwork yourself, make sure to follow our professional guidelines in our master Paving Installation Guide and structural Drainage Guide.

Professional Installation Advice & Low-Fuss Care

For load-bearing driveways, these 2CM calibrated granite cobbles must be laid over a well-compacted sub-base consisting of 100-150mm MOT Type 1 aggregate and fixed into a **full, continuous wet mortar bedding layer** (4:1 sharp sand and cement mix). Avoid using loose sand beds or spot-bedding methods for vehicle paths, as trapped water can shift individual setts during winter freeze-thaw cycles. Point the boundaries using an exterior-grade natural stone jointing compound or resin mortar to actively prevent weed growth.

Ongoing maintenance is minimal due to the high density and low porosity of natural granite stone. Periodically brush away loose garden debris and clean the area with an annual pressure wash to keep moss and algae at bay. Applying an impregnating stone sealer after installation is highly recommended to protect the stone against oil drips and enhance the depth of its black colorway. For detailed maintenance steps, see our specialist articles on how to clean and seal natural stone and cleaning and maintaining paving slabs.

Frequently Asked Questions