Cornish Slate Quoins

P.O.A

Also Called:Slate corner stones

Our Cornish slate quoins offer a timeless and distinctive solution for defining corners and architectural features on both traditional and contemporary buildings. Sourced and crafted in Cornwall, these beautiful slate corner stones showcase the natural texture and colour variation that Cornish slate is renowned for.

Available in both natural split and sawn finishes, our slate quoins can be tailored to suit a wide range of design styles. The natural finish retains the rugged character and layered texture of the slate, making it ideal for heritage projects, restoration work, and traditional stone buildings. The sawn finish provides a cleaner, more refined appearance, well-suited to contemporary designs where crisp lines and consistency are desired.

Our Cornish slate quoins are supplied with bed depths of 100 mm or 150 mm, ensuring structural integrity while allowing for strong visual definition at corners, openings, and wall junctions. These dimensions make them suitable for a variety of wall constructions, from domestic dwellings to larger commercial or landscaping projects.

Each quoin is carefully selected to provide as close to a 90-degree angle as possible, the unique tones and natural variations of Cornish slate, ranging from deep greys to subtle blue hues work to create a subtle contrast. This natural variation adds depth and character, helping to create a truly bespoke finish that enhances the overall appearance of the building.

Renowned for its strength, weather resistance, and longevity, Cornish slate is an excellent choice for external masonry. By choosing our slate quoins, you are investing in a durable, sustainable, and locally sourced building stone that will stand the test of time while adding architectural interest and value to your project.

If you require bespoke sizing, finish advice, or technical guidance, our team will be happy to assist.

Natural Stone
Sustainable Material
Order Tracking
UK Wide Delivery

Product Details & Specification
Sold by Tonne OR Linear Meter
Coverage Various
Dimensions 100mm bed, varying lengths & heights
Packaging Palletised or bagged
Origin Cornwall, UK
Surface Finish Random Rubble, natural face

For specific requirements or further enquiries, please contact our team for assistance.

Application & Installation Guidance

Be sure to check if your stone requires professional installation. Please contact us for our installation guides to ensure the best results when using our stone.

Delivery & Logistics

Please contact us for local delivery in Cornwall & Devon. All products are available for mainland UK delivery only (excluding some aggregates). We can deliver all across the UK, usually within 72 hours (stock dependent). Please contact us for an accurate delivery price.

Why Choose Cornish Slate?

Cornish slate is renowned for its stunning natural beauty and exceptional durability. Natural Cornish slate features unique textures and rich colours, adding elegance to any space. It’s highly resistant to wear and tear, and it’s perfect for residential and commercial applications.

Sourced responsibly from our Cornish Quarry, our slate supports local craftsmanship while minimising environmental impact. Its versatility makes it ideal for flooring, roofing, and landscaping, seamlessly fitting various design styles.

Request a sample
Experience the quality firsthand. Simply select ‘sample’ from the product options and add this to your quote at no cost.
Natural Stone
We specialise in creating and sourcing high-quality granite, slate, limestone, sandstone and porcelain stone for interior and exterior use. Our products come straight from our Cornish quarries or our trusted suppliers.
Dedicated to Sustainability
We are dedicated to making things the right way. By investing in our local economies, paying our people fairly and using business as a force for good.
Bespoke Services
We provide a custom masonry service for trade and commercial clients, working closely with you to bring your vision to life. Whatever you need, we’ll create something one-of-a-kind for your project.
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Need help choosing the right stone?

Our in-house experts, including a qualified geologist, can assist with matching and technical guidance. Trust us to source and deliver the perfect stone for your project.