Guide
Specifying outdoor furniture for coastal and exposed sites
Outdoor furniture on an exposed site is the shortest-lived line on most FF&E schedules, and it is usually specified as though the deck were a garden. Salt air is a different environment, and it is unforgiving of the wrong metal.
5 min read · Updated August 2026
The short answer
On a coastal site the failure mode is almost always corrosion at the fixings and the coating, not wear of the visible material. Marine-grade aluminium, stainless fixings of the right grade, and moulded polymer shells outlast powder-coated steel by years in salt air.
How the materials actually compare
In order of how well they tolerate salt air, with the qualification each one deserves:
- Aluminium — does not rust. Powder-coated marine-grade aluminium is the default for exposed sites for good reason.
- Moulded polymer and recycled polypropylene — unaffected by salt and washable, and increasingly the specification of choice on coastal decks.
- Teak — excellent durability, silvers gracefully, and needs a maintenance decision made in advance rather than discovered.
- Stainless steel — grade dependent. 316 tolerates marine exposure; 304 will show tea-staining within a season or two.
- Powder-coated mild steel — fine inland, poor on the coast. One chip in the coating and corrosion runs underneath it.
- Rattan and synthetic weave — depends entirely on the frame beneath. Weave over aluminium is a reasonable choice; weave over steel is not.
Fixings are where it starts
The single most common failure is a good frame assembled with poor fixings. Bolts, screws and brackets are small line items and are routinely value-engineered without anyone noticing.
On an exposed site the fixings should be at least as corrosion-resistant as the frame. A marine-grade aluminium chair held together with plated steel bolts will fail at the bolts, and it will stain the frame on the way.
Cushions and the winter question
Outdoor cushions need quick-dry foam (reticulated, so water passes through rather than sitting inside) and covers that can be removed and washed. Solution-dyed acrylics hold colour under UV far better than printed fabrics.
The more important decision is where they go over winter. Cushions left out on a closed park are effectively consumables. Storage that is dry and ventilated, and a labelling system that gets them back to the right unit in spring, is worth more than a more expensive fabric.
Wind, and the furniture that leaves
Exposed decks lose lightweight furniture. It is worth checking the weight of stackable chairs and the footprint of parasol bases before specifying, and worth assuming that anything which can be picked up by a person can be picked up by a gale.
Heavier pieces, ground-fixed bases and stacking arrangements that can be moved quickly by a small team are the practical answers.
Common questions
Outdoor furniture on the coast, in short.
How long should outdoor furniture last on a coastal park?
Specified correctly and stored over winter, aluminium and polymer ranges should give many seasons. Powder-coated steel on an exposed coastal deck frequently looks tired within two.
Is recycled plastic furniture durable enough for commercial use?
The good ranges are. Recycled polypropylene shells on aluminium or bamboo frames are specified widely across hospitality precisely because they are washable and colourfast, and indifferent to salt.
Does teak need oiling?
Only if you want it to stay honey-coloured. Left alone it weathers to silver-grey without losing structural durability. The decision is aesthetic — but it should be made once, for the whole site, rather than unit by unit.
Read next
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