Does patio furniture come assembled?

The short answer

Most patio furniture does not come assembled. Chairs, dining sets, sectionals and umbrellas almost all ship flat-packed, because shipping air is expensive and outdoor furniture is bulky. The exceptions are folding and stackable pieces, most molded resin furniture, and some cast aluminum, which arrive ready or nearly so. But the more useful version of this question is the one nobody asks: how it assembles tells you a great deal about how long it will last, because the joint you bolt together is the joint that fails.

What ships assembled and what does not

Joint type predicts lifespan

This is the part worth taking away from the page. There are three ways outdoor furniture is joined, and they have very different consequences:

• Bolted. Through-bolts with nuts, usually stainless. Strongest option over time because it can be tightened, and the furniture can be taken apart for storage, repair or re-hardwaring. POLYWOOD's warranty and Trex's both sit on top of bolted construction, and that is not a coincidence.
• Screwed. Screws into the material rather than through it. Fine initially; the hole wallows over years of movement and the screw loses purchase. Common on wood furniture, where it is at least repairable with a longer screw or a dowel.
• Welded or crimped. Permanent. Excellent rigidity on day one and no maintenance available on day three thousand. A crimped tube joint on a budget set is the specific thing to look out for: it cannot be tightened, it works loose, and it cannot be fixed.

That is why a flat-pack box is not automatically a sign of a cheaper product. The best HDPE furniture on this site is fully bolted and arrives in pieces precisely because it is built to be serviceable — see our most durable patio furniture roundup and the heavy-duty roundup.

The hardware in the bag

Open the hardware bag before you open anything else. It tells you what the manufacturer thinks of its own product:

• Stainless bolts and nylon-insert lock nuts are the good answer. Stainless will not seize and the lock nut will not back off. 304 versus 316 matters only near salt water, and brands that publish their hardware grade tend to be the ones worth buying.
• Zinc-plated steel bolts are a time-limited part. The plating wears, the bolt rusts, and it seizes in the hole so you cannot even take the furniture apart later. Worth replacing with stainless at assembly on anything you intend to keep.
• Nylon or plastic washers are doing a job, not padding. On mixed-metal joints they insulate the metals from each other and prevent galvanic corrosion. Do not leave them out.
• A supplied wrench that bends is a hint. Use your own tools.

Assembling it properly

1. Lay the parts out and count them against the manifest before starting. Missing-part claims are easier on day one than on day three.
2. Start every fastener loose, then tighten in stages, working around the piece rather than finishing one joint at a time.
3. Work on grass or cardboard, not on the deck you just finished. Slat edges and bolt threads mark boards.
4. Snug, not gorilla-tight. Over-torquing a bolt through poly lumber crushes the material around the hole and creates the wallowing you were trying to avoid.
5. Re-check the bolts after the first season. Everything settles. Ten minutes with a wrench once a year is most of what bolted furniture ever asks of you.
6. Keep the hardware bag and the instructions. Spare bolts and the exploded diagram are what make a repair possible in year ten.