Featuring reversible grooves for slip resistance and visual variety, this board blends function with form. Crafted from a wood-plastic composite, it’s easy to install with our hidden clip system and engineered to resist fading, warping, and rot. The result is a clean finish and a calm vibe, simplified. To see how this compares with other popular colours, explore our full composite decking range here.
Please Note: Order Your Free Samples
We highly recommend ordering our free samples to confirm the colours before placing an order, as digital photos can vary significantly between screens.
Benefits of Our Slate Grey Boards
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Stunning Slate Grey
A modern yet versatile shade that suits every garden style, from contemporary courtyards to rustic retreats, this colour does it all!
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Incredibly Versatile Size
Not too big, not too small, perfect for creating the outdoor space of your dreams in a garden of any size.
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Dual-Groove Design
Two stylish surfaces in one board, allowing you to switch between wide and narrow grooves depending on your personal preference.
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Budget-Friendly
All the premium composite benefits at a price that fits most home improvement budgets.
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Length
3600mm
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Width
150mm
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Finish
Grooved
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Thickness
22mm
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Colour
Slate Grey
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Installation
Grooved (requires decking clips)
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Weight (per board)
Approx. 8.7kg
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Material
High-Density Polyethylene & Wood Fibre Composite
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Warranty
10 Years Residential
Expert Advice for Slate Grey Composite Decking
Want to know more? Our in-house expert, Allan, gives his take on our Slate Grey Composite Decking, and we’ve selected some of our best guides to help you decide if this is the right choice for you.
A Word from Our Expert, Allan:
Our Slate Grey board is the original in our Home Choice Collection, featuring a distinctive dark grey colour with a subtle blue tint. It was developed through years of customer feedback and rigorous testing to deliver the perfect balance of proven quality and real value. These boards are truly tried and tested—they’ve been installed in UK gardens for nearly a decade, so we know they last.
Over the years, we’ve also discovered a key tip from our customers: thanks to the classic sanded surface, most light scuffs or scratches can be gently blended away with a soft wire brush. It’s a unique benefit that helps keep your deck looking pristine.
FAQ About Our Slate Grey Composite Boards
1 Will the slate grey colour fade over time?
Yes, as with all composite decking, you can expect up to 20% fading in the first few months due to UV exposure. This natural weathering process results in a softer, more natural tone, producing a lighter dark grey appearance.
2 Is the slate grey grooved decking slippery when wet?
Not at all. The grooved surface provides excellent slip resistance, particularly when using the narrow-groove side, making it safe in all weather conditions.
3 Can I install slate grey grooved composite decking myself?
Absolutely. Our decking boards are lightweight and grooved for use with a hidden fastener system, eliminating the need for visible screws or professional installation.
4 Do I need any special tools to install slate grey decking?
No. Just basic tools like a saw, drill, and tape measure. Follow our simple installation guide, and you’ll have your deck up in no time.
5 Is the slate grey grooved decking safe for kids and pets?
Yes! Our boards are splinter-free, toxin-free, and stay much cooler underfoot than traditional metal or dark-stained wood decking, so everyone can enjoy long summer days outside!
6 What’s the difference between this and solid decking boards?
Our hollow-core design delivers strong performance for domestic use while remaining lighter, easier to install, and more affordable than solid composite decking.
As Seen In
Delivery Information
| Delivery Type | How Long? | Delivery Cost |
|---|---|---|
| Urgent | Estimated 4-7 Days | £79.99 |
| Normal | Estimated 10 to 21 working days* | FREE |
| Royal Mail Standard (Small Parcels) | 3–5 Working Days | £8.00 |
| Royal Mail Standard (Large Parcels) | 3–5 Working Days | £29.95 |
| Collection | Collection from our warehouse | FREE |
| Sample Packs | 3–5 Working Days | FREE |
