Composite or timber decking in Malta?

Most people arriving in Malta from the UK or northern Europe have a mental model of decking that starts with softwood boards from a builders' merchant and a tin of preservative. That model does not survive contact with what is actually on sale here. Walk the local supply chain and the outdoor "wood" is almost entirely wood-plastic composite (WPC). This article works the numbers from the published prices of two Maltese stockists, and is honest about the large holes in them.

What is actually on the shelf

Kenneth Hardware Stores (KHS) in Żabbar lists a full composite decking system: boards, joists, clips and an edge angle. There is no natural-timber decking on that page and no installation price. BigMat Malta's outdoor wall panelling is Vox panels in wood composite — the indoor Linerio and XS Line panels on the same page are polystyrene. In both cases, the product that looks like wood outdoors is not wood.

That is the first finding, and it is a useful one: no Maltese retailer we found publishes a price for timber decking boards. If someone quotes you for a timber deck here, they are pricing an import or a workshop build, not a shelf item with a public price. You cannot sanity-check it against a local list price, because there isn't one.

The composite arithmetic, supply only

KHS publishes these:

One board covers 0.140 m × 2.9 m = 0.406 m². At €28, that is about €69 per m² for boards alone — the figure already carried on our rate card. Note that this is bare coverage: boards are laid with an expansion gap, and you will cut waste into every run, so order above the theoretical count.

What else a laid deck needs

Boards are not a deck. On a flat terrace or a garden base you also need joists underneath, a clip at every board-to-joist crossing, a starting clip at the perimeter, an edge trim, and fixings into the substrate.

KHS does not publish a recommended joist spacing, so the table below is our arithmetic across three plausible spacings, not a manufacturer instruction. Ask your installer which spacing the board can actually span. The joist works out at €4.14 per linear metre (€12 ÷ 2.9 m), and with a 140 mm board pitch there are 7.14 board runs per metre of width.

So roughly €81 to €89 per m², supply only, and that still excludes the €0.55 stainless starting clips, the €9.50 angle for edges (whose length KHS does not publish, so it cannot be costed per linear metre), substrate fixings, delivery and labour.

The cheap route: click-together tiles

The 30 x 30 cm WPC tiles are €4.50 each. That is 11.11 tiles per m², or exactly €50 per m² — cheaper than boards before you have even counted the joists and clips the tiles do not need. The composite pebble tiles at €9.95 each come to €110.56 per m².

Tiles suit an existing, sound, already-draining roof terrace where you want a warmer surface over the screed or tiles and may want to lift it again. They are not a structural solution: they will follow whatever they sit on, including its falls and its puddles. Boards on joists let you correct a surface; tiles do not.

Outdoor composite cladding

BigMat's Vox outdoor panels are 385 cm long and priced at €28 (ash, beech, oak) and €38 (honey oak, golden oak, oak). BigMat does not publish the panel width or coverage, so these cannot honestly be converted to a price per m² — you will need to ask for the coverage figure before comparing them with anything. Installation is offered on request and is not priced on the page.

The maintenance argument

The Check Your Traders pergola guide, published 10 July 2026, makes the point plainly for timber in this climate: it needs regular maintenance against Malta's strong sun and coastal conditions, and can be painted or stained. The same guide concludes that aluminium gives the best long-term value for pergolas because it resists corrosion and weather. That reasoning transfers to a horizontal deck, which gets more sun than a pergola post and, on a coastal roof, more salt.

What the guide does not give is a re-coating interval. Nobody we found publishes one for Malta. So the honest version of the composite case is narrow: there is no coating to re-apply. It is not a claim about lifespan, colour-fastness or surface temperature, none of which our sources address.

Maltese constraints that change the job

Roof terraces in apartment blocks. The roof is frequently common property under the condominium rules, not yours to build on by default, even where your deed gives you exclusive use. Get the condominium position settled in writing before ordering materials.

Shell form. If you have bought in shell, the terrace slab is likely unwaterproofed and unlevelled. Decking laid over an untreated roof hides the membrane you have not yet installed. Sequence the waterproofing first; nothing in our sources covers deck substructure over a membrane, and that detail needs a specialist.

Gozo. Every board, joist and tile crosses on the ferry. Composite is heavy, and delivery is a real cost line that no stockist on our list publishes. Order in one trip, with waste allowance included, rather than three.

Permits. The planning side — what falls under the Development Notification Order and what does not — is dealt with in our separate pergola and decking article, not here.

Why our rate card says "quoted on site"

Our rate card carries composite decking with the unit m² and no price band. The note records exactly what this article has: boards are about €69 per m² to buy from khsmalta.com before joists and clips, and laying is quoted on site. The source field says it outright — a gap, KHS board prices only, no installed figure.

That is not evasion. No Maltese source publishes an installed price per m² for decking in either material. The variables that decide labour here — substrate condition, falls, perimeter cuts, roof access by stairs or crane, whether the terrace needs levelling first — are site facts, not catalogue facts. For context on how we do publish bands where they exist: our timber pergola line is €1,500–€3,000 per pergola, with Planning Authority fees separate.

If a quote for decking arrives without a breakdown, ask for it split into boards, joists, clips, trims and labour. With the KHS list prices above, you can check the first four yourself.