British weather is unusually hard on paving. A patio here endures freeze-thaw cycles, months of damp, algae on the shaded side and a summer that arrives without warning. The outdoor floor tiles you choose have to survive all of it while staying safe underfoot when wet.
Outdoor porcelain paving has become the default answer, and this guide covers what separates a surface that still looks right in ten years from one that stains in the first winter. Axar Tiles has supplied porcelain across the UK for over ten years.
Why porcelain outperforms stone and concrete
Porcelain is fired at temperatures that leave it almost non-porous, absorbing under 0.5 per cent water by weight. That single property drives most of its advantages as an exterior surface.
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Frost resistance. Water that cannot penetrate cannot freeze inside the tile and split it. Sandstone and limestone absorb far more, which is why they spall after hard winters.
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Stain resistance. Wine, barbecue grease and rust from garden furniture sit on the surface. Natural stone needs sealing every few years; porcelain outdoor tiles need none.
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Colour stability. Pigment is fired through the body rather than applied as a coating, so UV exposure does not fade it.
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Dimensional consistency. Every tile arrives the same thickness, making joints tighter than riven stone allows. Every Axar Tiles outdoor range is calibrated to 20mm.
The trade-off is that porcelain needs a wet saw with a diamond blade, which matters if you are laying it yourself.
What 20mm thickness buys you
Indoor tiles run 8mm to 12mm. Outdoor paving tiles are made at 20mm, and the difference is structural.
A 20mm tile carries enough breaking strength to be laid on pedestals over a flat roof or balcony, dry-laid onto compacted gravel, or bedded conventionally on mortar. Thinner tiles crack under point loads such as a table leg. All Axar Tiles outdoor ranges are supplied at 20mm.
Pedestal systems solve problems nothing else does. Adjustable pedestals sit under each corner, lifting the surface clear of the substrate so rainwater drains beneath it and the finished level can be set precisely against a threshold. On a roof terrace this is often the only workable method. For ground-level patios, a full mortar bed on concrete remains the conventional route, with a fall of roughly 1:80 away from the building and a 5mm minimum joint.
Sizes and large format options
Large format tiles have taken over from small-unit paving because fewer joints means a calmer surface and less grout to maintain.
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600x900mm is the dominant UK patio format and the size Axar Tiles supplies across its outdoor floor tiles collection. The proportion suits rectangular gardens and lays quickly.
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600x600 outdoor tiles remain popular for smaller courtyards, paths and areas with awkward angles, where a square unit produces fewer cuts.
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Plank formats suit pathways and narrow side returns, particularly in wood-effect finishes.
Choose the format against the space rather than the trend. A large format tile in a three-metre courtyard produces more waste cutting than a square one, and on a long terrace the reverse is true.
Slip resistance, and how to read it
This is the specification most people skip and the one that matters most.
Exterior surfaces are rated by pendulum test value or by the R scale from R9 to R13. For domestic patios, R11 is the sensible minimum and the level most outdoor porcelain is manufactured to. Around a pool or on a sloped path, R12 or R13 is worth the coarser texture.
Grip and cleaning ease pull against each other, as heavily textured surfaces hold more dirt in the grain. R11 is the balance point for most gardens, and it is what to ask for when comparing the best outdoor tiles across suppliers, including ours. If a product page does not state a rating, ask before ordering.
Finishes that suit British gardens
Stone effects dominate outdoor tiles UK sales because they read as natural material without the maintenance. The Axar Tiles outdoor collection runs across stone-effect ranges including Crystal, Eclipse, Canyan, Forest, Desert, Gemstone and Lime Stone.
Pale greys and creams open up small or shaded gardens and show less algae on north-facing patios. Mid and dark greys frame planting well and hide everyday marks. Warm beiges suit period brickwork and softer planting. Wood effects work for decking replacement and side passages.
Where a patio functions as an outdoor living space rather than a path to the shed, matching the tone to your interior flooring makes the transition read as one continuous room. Axar Tiles ships free samples, and tiles for exterior use look substantially different under grey British light than under showroom spotlights, so look at them wet and outdoors before deciding.
What outdoor tiles cost
Axar Tiles outdoor porcelain starts from £18/m², below most natural stone once sealing and maintenance are counted across the life of a patio. Budget for the full job rather than the tile alone: sub-base, adhesive or pedestals, jointing compound and cutting.
We deliver nationwide in two to three working days, with free delivery over £500, a price match promise, and 100 days to return anything that does not suit.
Outdoor tiles in London
Searches for outdoor tiles London reflect constraints the rest of the country does not share. Courtyards and side returns are small enough that one format choice changes the whole scheme. Roof terraces and balconies are common, making pedestal-laid 20mm porcelain the practical option rather than a premium one. Access is often through the house, so pallet delivery needs planning.
The Axar Tiles showroom at Devonshire House, 582 Honeypot Lane in Stanmore serves customers looking for patio tiles London wide. Seeing a full tile at scale before ordering is worth the trip when the whole living space hinges on one decision.
For advice on sizes, quantities or finishes, call the Axar Tiles team on 0203 355 1197 or email info@axartiles.com.
FAQ
Can indoor tiles be used outside?
No. Indoor tiles are 8mm to 12mm thick, are not rated for frost, and rarely carry adequate slip resistance when wet. Outdoor tiles are manufactured at 20mm with low water absorption specifically to handle freeze-thaw cycles.
Are porcelain outdoor tiles slippery when wet?
Not if correctly specified. Look for R11 as a minimum for domestic patios, or R12 and above around pools and on slopes. Anti-slip texture is built into the surface during manufacture rather than applied afterwards, so it does not wear off.
What size outdoor tiles should I choose?
600x900mm suits most UK patios and is the large format Axar Tiles supplies. 600x600 outdoor tiles work better in small courtyards and on paths where a square unit reduces cutting waste. Match the format to the shape of the space.
Does outdoor porcelain paving need sealing?
No. Every Axar Tiles outdoor range is porcelain, and water absorption below 0.5 per cent means there is nothing for a sealant to penetrate. This is the main practical difference from sandstone or limestone paving.
Can 20mm outdoor tiles be laid on pedestals?
Yes. The 20mm thickness is what makes pedestal installation possible, which is why it is the standard for roof terraces and balconies where drainage runs beneath the surface.
How much do outdoor tiles cost in the UK?
Axar Tiles outdoor porcelain starts from £18 per square metre. Total project cost also includes sub-base, adhesive or pedestals, jointing and cutting, so the tile is rarely the largest element on a patio.
