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Garden furniture materials: how each one actually ages outdoors

The set is sold on a photograph taken in June. What decides whether you still own it in five years is the material and whether parts are sold separately.

By THRYV News Desk·Published August 20, 2026·Updated August 23, 2026·7 min read
Garden furniture materials: how each one actually ages outdoors
Garden · Illustration commissioned for THRYV. Photography is replaced with original imagery as each story is produced.

The takeaway

Outdoor furniture fails in predictable places: cushion foam before covers, powder coat at the fixings, untreated hardwood where water sits. Recycled HDPE lumber and powder-coated aluminium tolerate year-round exposure with little maintenance; hardwood matches them only with annual oiling. Replacement-part availability matters more than warranty length.

Every garden furniture range photographs well. The difference between sets shows up in the second winter, and it is almost entirely a question of material and of whether the manufacturer still sells the part that failed.

How each material behaves

  • Recycled HDPE lumber: colour runs through the material, so scratches do not expose a substrate. Heavy, expensive, and effectively maintenance-free outdoors.
  • Powder-coated aluminium: light, rust-free, and repairable with touch-up paint. Damage concentrates at fixings and stacking points.
  • Teak and eucalyptus: durable if oiled annually; left bare they silver, which is cosmetic, but standing water at joints is not.
  • Steel: strong and cheap, but any coat breach becomes rust. Check whether the frame is galvanised beneath the paint.
  • Resin rattan: weatherproof frame at a low price; the cushions, not the weave, are what fail.

Cushions are the consumable

Fabric is usually rated for UV and water; foam rarely is. A cushion that spends summers outdoors compresses and holds water at the core, and once it does, the cover being washable is irrelevant. Sets whose cushion covers and inners can be bought separately outlast sets whose cannot, regardless of the frame.

Ask one question before buying

Can I buy a single slat, fixing kit or cushion inner in three years? A five-year warranty on a set with no spare-parts listing is a promise to replace the whole thing, which is a different offer from being able to repair it.

Storage and covers

Frames in HDPE, aluminium or resin can stay out year-round. Covers help wood and steel by slowing finish damage, but a cover that traps moisture against timber does more harm than none; ventilated covers and raising furniture off standing water matter more than the cover's fabric rating. Cushions should come indoors whatever the label claims.

Buy the material and the spare-parts list. The photograph is the same in every catalogue.
THRYV News Desk

Brands mentioned

    Sources

    This article is original writing by THRYV. We link to primary reporting and official documents rather than reproducing them.

    1. Choosing and caring for garden furnitureRoyal Horticultural Society
    2. Ecodesign and repairability requirementsEuropean Commission
    3. Furniture flammability and product safetyUS Consumer Product Safety Commission

    Why you can trust this article

    Written and edited in-house by the THRYV News Desk. We do not republish or reword agency copy, and we do not invent quotes, statistics, testimonials or ratings. Where figures move frequently, we point you to the primary release rather than printing a number that will be out of date. Advertising and affiliate partnerships have no influence on our reporting — see our editorial standards, fact-checking policy and affiliate disclosure. Spotted an error? Write to newsroom@thryv-news.com.

    General information only. Not personalised financial, medical or legal advice.

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