Outdoor Porcelain Tiles – Black Slate
Premium black slate-effect outdoor porcelain paving tiles featuring deep charcoal tones and a natural stone texture. These contemporary slabs are slip-resistant, weatherproof, low maintenance, and perfect for modern patios and outdoor spaces.
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Original price was: £579.00.£499.00Current price is: £499.00. (inc VAT)
Bring bold sophistication to your outdoor space with these striking black slate-effect porcelain paving tiles. Featuring rich graphite and deep charcoal tones with subtle natural stone variation, these 900 x 600mm slabs create a dramatic contemporary finish that instantly elevates patios, pathways, terraces, and garden spaces.
The dark slate-inspired colouring delivers a sleek architectural look that pairs beautifully with modern landscaping, outdoor kitchens, fire pits, timber cladding, and minimalist garden designs. Delicate textured detailing and authentic stone shading replicate the appearance of natural black slate while offering the superior durability and low-maintenance benefits of premium porcelain.
With a substantial 20mm thickness, these outdoor porcelain tiles are engineered for strength and long-lasting performance in all weather conditions. The colour remains consistent over time, resisting fading from sunlight, while the slip-resistant surface provides practical safety and style throughout the seasons.
Ideal for creating seamless indoor-outdoor transitions, the elegant black finish adds depth, contrast, and a luxury feel to any exterior setting — especially when combined with modern planting schemes, lighting, or contemporary furniture.
Key Features:
Deep black and charcoal slate-effect finish
Authentic natural stone appearance
Large-format 900 x 600mm design
Durable 20mm outdoor porcelain construction
UV, frost, stain, and scratch resistant
Slip-resistant textured surface
Low-maintenance alternative to natural slate
Perfect for modern patios and contemporary gardens
Create a refined outdoor environment with the timeless beauty of dark slate tones and the performance of high-quality porcelain paving.
Frequently Asked Questions
Laying Information
You can absolutely DIY – and many people do! But it’s not your average weekend project. Laying paving well takes planning, precision, and a bit of muscle. If you’re confident using tools and can follow detailed steps, it’s a very achievable project. That said, for large areas or tricky layouts, getting a professional in can save you time (and potential do-overs).
A full mortar bed supports every part of the slab, which helps prevent cracking, wobbling, and water ingress.
Avoid the old “dots and dabs” method – it might be quicker, but it can lead to uneven slabs and those dreaded water stains over time.
You’ll need to dig down around 160mm (about 6 inches). That’s enough to make space for a 100mm sub-base, 40mm mortar layer, and the 20mm sandstone slab.
It’s all about giving your patio a solid foundation – no shortcuts here if you want it to last!
We’d recommend a 1:4 or 1:5 mix of cement to sharp sand. Some like to add a bit of soft sand for improved workability.
The texture should be like thick bricklaying mortar – not too dry, not too sloppy. You want a mix that holds its shape and creates suction under the slab.
Give it a little breathing room – let the mortar set for 24-48 hours before grouting.
When you’re ready, use a mix of 1 part cement to 3 parts plastering sand. It should be damp like brown sugar – no drips, no sloppiness. And try to be neat: any grout left on the slab can harden and stain.
Why Choose Port Stone
Finest Quality
We source materials from around the world to bring you the best products we can find.
We truly believe that quality matters and only choose materials that make the cut
Trust in the Experts
Our teams install these materials in customers’ gardens year round.
Our experts understand the difference that quality makes and ensure we only choose the best materials
Try Before You Buy
Make sure you know exactly what you’re getting with our free sample service.
You can be sure the product you’re ordering will look great in your home.
Great Value
By importing the products ourselves and selling direct to you, we’re confident that you can’t get a better deal anywhere else.
We even guarantee it.
What Our Customers Say
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