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Black Friday SaleWinter Sale Porcelain paving slabs from just £29.95 per m2

20mm Siena Basalt Paving

These Siena Basalt paving slabs are 20mm thick, making them extremely robust and well-suited for external use. Unlike our 10mm porcelain tiles, these paving slabs are able to be ‘dry-installed’ using our pedestal support system, removing the need for adhesive or mortar.

Thickness: 20mm Dimensions: 40cm x 80cm

Was £53.82 m2 Inc VAT 
Now £30.00 m2 Inc VAT
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Watch our Siena Basalt Paving Slabs in Action

To take a closer look at our range of 20mm Siena Basalt paving slabs, watch our showcase video here! Here you can see these stunning porcelain tiles in all their beauty, within stunning looking outdoor spaces – perfect for giving you the inspiration that you need to create your own space using these Basalt paving slabs.

Grip Factor - 5

All of our products are given a Grip Factor rating between 1 (very low slip resistance) and 5 (very high slip resistance). Our Siena Basalt slad have been assigned the highest possible rating of 5, making it perfectly suited for outdoor environments that see a lot of rain.

Shade Variation - High (V4)

With a V4 Shade Variation rating, our range of 20mm Siena Basalt paving slabs possess a high level of colour variation between each porcelain tile. This results in an eye-catching appearance, great for outdoor spaces design to encompass a range of tones and shades.


Our Siena Basalt pavers have been given a textured finish with a high-grip surface, making it incredibly useful within outdoor spaces such as driveways and gardens. It also offers a natural stone look, perfect for any space styled for a real-stone feel.

Dry-Install Your 20mm Siena Basalt Paving Slabs

Installing your porcelain paving slabs has never been easier! Removing the need for any sort of adhesive or mortar, our innovative paving system allows you to dry-install our Basalt paving onto our revolutionary pedestal support system, with the ability to pass any cable or wires underneath. This is a simple process that can be completed by any DIY enthusiast, however if you do require any assistance, our team of professional installers are on hand to help whenever needed.Find Out More
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