Porcelain Decking Boards & Aluminium Substructure System

Colour options: 6

Size: 141 x 1217 x 26mm

Weight: 8.33kg per board

Slip resistance: R11

FREE LAYOUT DESIGN SERVICE

Fire: Class A1 Non Combustible

Porcelain Decking, Aluminium Substructure & Aluminium Pedestals

Porcelain Decking Boards with Aluminium Substructure

Safe, stylish, and built to last

Transform your outdoor space with a decking solution that combines the beauty of timber with the strength and safety of porcelain. Designed for modern living and strict building standards, these porcelain decking boards are perfect for balconies, terraces, and rooftop spaces.

If you’re looking for a decking solution that delivers exceptional performance, long-term value, and modern elegance, look no further. Our Porcelain Decking Boards are designed to provide a premium finish with unmatched durability and safety—perfect for both residential and commercial outdoor environments.

These boards offer the natural look of timber without any of the usual drawbacks. Made from high-quality vitrified porcelain, they won’t warp, fade, or become slippery over time. Whether you’re decking a city balcony, a rooftop terrace, or a luxury garden patio, this system offers peace of mind, impressive style, and minimal maintenance.

Key Features

Fire-Safe by Design
These decking boards are fully non-combustible with a Class A1 fire rating. That makes them ideal for high-rise balconies and other areas where fire safety is a top priority.

Looks Like Timber – Performs Like Porcelain
Enjoy the rich, natural appearance of wood without the hassle. These boards don’t fade, rot, or stain. Their non-porous surface resists moss and mildew and can be cleaned easily with just water and a brush.

Strong, Lightweight & Easy to Install
Each board is engineered to be tough but manageable, providing strength without excessive weight. Paired with an aluminium substructure, the system creates a level, long-lasting deck that installs quickly—even on uneven surfaces.

Slip-Resistant & Weatherproof
With a high slip-resistance rating (R11), these boards stay safe underfoot in wet conditions. They’re also frost-resistant, making them ideal for year-round use in all weather.

Sustainable & Long-Lasting
Made with 40% recycled content and fully recyclable at the end of their lifespan, these boards offer a 25-year warranty and can last up to 100 years. It’s a low-maintenance, eco-conscious choice.

Perfect For

  • Balconies – Especially in high-rise buildings, where fire ratings are essential.

  • Roof Terraces – Stylish and durable, with great drainage performance.

  • Commercial Outdoor Areas – Built to withstand heavy use without wearing out.

  • Garden Decks & Patios – For homeowners who want a premium, low-upkeep finish.

How It Works

Just send us the details of your project—including size, slope, and preferred finish—and we’ll create a free layout plan with all the components you need. Installation is quick and simple thanks to the aluminium joist system, which ensures a perfectly level surface with minimal fuss.

Ready to upgrade your decking?

Contact us at sales@castlecomposites.co.uk or call 01555 870 003 for your free design plan and expert advice.

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Sarah M
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Once again, a great company to deal with, helpful and reasonably priced. Highly recommend
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Charlotte profile picture
Charlotte
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Impeccable service from this company! From start to finish they have showed patience, kindness and honesty throughout. As for the product.......beyond our expectations!! After almost a year of deliberation and with limited options due to placement we decided on the grassflex tiles and 100% made the right choice. Great quality! Thank you
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Pam Jordan profile picture
Pam Jordan
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Just had a 15m garden wall built, topped by porcelain coping stones. Customer service was wonderful, and Fraser was so incredibly quick to answer any questions l asked. Samples were sent first and ordering was easy. Thank you Fraser for all your help. A great company to deal with!
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J
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Absolutely amazing service from start to finish! Fraser was super helpful, replied promptly to all my queries, delivery was quick and smooth. Trully great team providing best service, was kept updated on my delivery which was super fast, would definitely recommend this company! Thank you Fraser. Kind Regards Jara
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Carole McGregor profile picture
Carole McGregor
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Fabulous service from this company and Martin in particular who took me through the order process step by step. So easy to deal with. Very happy with the copes and pier caps ordered. Great quality and speedy delivery. Would definitely use again.
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Lucy Zorina profile picture
Lucy Zorina
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Absolutely amazing customer service from Fraser Brown! We had a delivery of outdoor tiles this morning, and our construction team was struggling to figure out how to use the levelling discs supplied. Fraser immediately stepped in and provided a direct WhatsApp number so the team could send videos and speak to him directly. The issue was resolved within five minutes. A huge thank you to Fraser for such responsive and hands-on support — truly appreciated!
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Truman Burbank
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Great products at good prices. Highly recommend.
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L McGinness profile picture
L McGinness
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A great experience with Castle Composites! We purchased the EPDM Rubber Tiles in ‘Sunburst’ for the kids’ play area section of our garden. Fraser was a wonderful help - from the first phone call enquiring about the product, showing us samples at the warehouse, liaising throughout the ordering and production process (and for helping with a later change to increase our order quantity within the same batch), to ensuring smooth delivery, Fraser’s customer service was fantastic and very much appreciated. The play area is now fully installed in our garden and we are delighted with the finished product. Thank you!
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Ernest Machin
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Excellent service from a great company with fantastic staff and a wonderful product. We have just used Castleflex tiles for our large patio and are very pleased with the end result. They look great and were easy to lay.