Decking Tiles UK: Interlocking Deck Tiles for Patios and Balconies

What are decking tiles?

Decking tiles are small square panels that lay on a hard surface and connect to each other, so you can make a deck-style floor over a slab, patio or old boards without framing. Retailers name them decking tiles, deck tiles, garden deck tiles and, in searches, decking deck tiles. The products we found fall into three materials.

Tile	Size	Price	Per m² of floor	Notes
Wickes acacia hardwood	300 by 300 by 24 mm	from £2.60 each	about £28.89	1 year guarantee; 0.09 m² per tile; VAT status not stated
Wickes softwood	500 by 500 by 50 mm	£13.25 each	about £53.00	5 year guarantee; 0.25 m² per tile; solid surfaces only
eDecks composite	295 by 295 by 20 mm	£4.62 each, £3.24 from 200	£53.09 to £37.23	made from recycled plastic and hardwood; VAT included
eDecks hardwood	300 by 300 mm	£7.97 each	about £88.56	interlock without tools
eDecks Balau hardwood	500 by 500 mm with integral bearers	£45.02 each	about £180.08	VAT included
Cladco composite (2022 list)	600 by 600 by 17 mm	£18 including VAT	about £50.00	5.5 kg; a 2022 price list, so historic

The per m² column is the tile price divided by its area, before delivery, and it makes the tiles directly comparable.

Where can you lay decking tiles?

On a hard, level surface. eDecks says its composite tiles can go straight on existing decking, slabs or concrete if level, with a slight fall so water runs off. They have a raised interlocking base for drainage. Wickes’ softwood tile should only be used on solid surfaces, laid on a solid level base and not in direct contact with soil, and it tells you to keep it clean and recoat all sides with preservative or stain. Wickes’ acacia tile is sold for indoor and outdoor use, with a pre-screwed plastic base, and Wickes recommends fixing it to the base to prevent movement and applying wood oil frequently.

We found no maker statement approving tiles on grass, or on a balcony or roof, so ask before you use them there. For a framed deck on soil or grass, see the ground guide.

Do decking tiles need a frame?

Not the ones we checked. The point of a tile is that it doesn’t need joists. A level surface is the frame. If the ground isn’t firm and flat, use a framed deck instead; start with the decking calculator.

Can you tile on a deck?

That is a different question, and the answer is “not directly on boards”. Ceramic and porcelain tiles are rigid, and timber moves with moisture.

BS 5385-3:2024, published in May 2024, means plywood and wood-based boards need an intermediate layer, such as an uncoupling membrane, a reinforced tanking system or a tile backer board, according to a Palace Chemicals technical director.
BAL’s data sheet says the same, as of May 2024, and gives two options: overlay with tile backer board, or uncoupling matting. The timber must be the correct grade, dry, rigid and stable, with adequate ventilation below, and screwed to joists at 300 mm centres. BAL’s blog, written about interior floors, suggests 15 mm marine grade plywood screwed at 300 mm centres.
An Ardex datasheet from Australia and New Zealand says that, except for external-grade plywood, timber is unsuitable for tiling externally because of moisture instability.

None of these covers open garden deck boards, which have gaps and move more than a sheet floor. Ask the adhesive maker and a tiler before you spend, and expect to build a different substrate. Palace Chemicals says an existing timber base must carry a static load of up to 0.8 kN per m² without noticeable deflection.

What does a decking tile cost to look after?

Timber tiles need oiling or recoating, which is the same upkeep as timber boards; see timber decking. Composite tiles need cleaning only. Wickes’ composite guide says to avoid bleach and keep a pressure washer at 1,200 psi or under, 250 mm away.

Questions

What are decking deck tiles?

Square panels, usually 300 to 600 mm, that interlock or clip together so you can cover a floor without building a frame. They come in timber, composite and artificial-grass versions.

Can I lay decking tiles on grass?

We found no manufacturer wording that allows it. Wickes' softwood tile says to use it only on solid surfaces such as concrete slabs and not in direct contact with soil. A tile on grass would also have nothing to drain onto, so check with the maker.

Do decking tiles need joists?

The ones we read don't. eDecks says its composite tiles need no fixings or joists, and can be laid straight on existing decking, slabs or concrete if level, with a slight fall for run-off. Wickes recommends fixing its hardwood tile to the base to prevent movement.

Can you put tiles on a deck?

You can, but with an intermediate layer and not directly on boards. Since BS 5385-3:2024, BAL says plywood and timber are no longer suitable bases for tiling directly; a tile backer board or an uncoupling membrane goes between. None of the guidance we read covers garden decking boards, so ask the adhesive maker.