Garden furniture is flat pack’s rougher cousin: heavier boxes, more bolts, vaguer instructions, and a build site with weather. Some of it is fine DIY; some of it is the hardest “furniture” assembly there is. Here’s the field guide.
Dining sets and bistro sets
Mostly bolt-and-washer work — legs to tops, backs to seats, repeated six or eight times. Nothing is conceptually hard; the grind is bolt count and the classic mistake is tightening fully as you go. Keep every bolt loose until the piece stands square on flat ground, then tighten, or you’ll build a rocking chair set. An umbrella hole and base are the only parts that punish misalignment permanently.
Rattan sofa and corner sets
The rattan itself arrives woven; what you’re assembling is the frame geometry — corner units, clips or brackets joining sections, feet, and sometimes a rising table. Two traps:
- Section order matters. Corner sets often only join in one sequence; dry-fit the layout on the patio before fixing anything.
- Clips before cushions. Joining clips left off “for flexibility” is how sections drift apart all summer.
Weight is the reason people hire this one out: single boxes for corner sections can be genuinely two-person from the kerb onwards.
Storage boxes, sheds and gazebos
This is where “furniture assembly” shades into light construction. Large resin storage boxes are manageable but panel-fiddly. Metal sheds and gazebos add ladders, levels, dozens of near-identical panels, and — for anything with a roof — a hard requirement for anchoring against wind. UK gusts destroy unanchored gazebos every single summer; if the instructions include ground anchors, they are not a suggestion.
Many furniture assemblers take on sheds and gazebos; some don’t. Say exactly what the item is in your enquiry so the right people quote.
Working outdoors: three practical rules
- Check the forecast, not the sky. A rained-on half-built set with cardboard turning to porridge is a miserable afternoon.
- Build on the patio, place on the grass. Flat, hard surface for assembly; carry finished pieces to position.
- Retighten after a month outside. Temperature swings work bolts loose; one pass with a spanner in month one prevents the wobble.
Hiring it out
Garden jobs quote best with photos — box labels plus the space it’s going into. Send an enquiry with those and the quotes come back realistic first time. For what the visit itself looks like, see what to expect on assembly day.
Frequently asked questions
Is garden furniture harder to assemble than indoor flat pack?
Often, surprisingly so. Instructions from garden brands are frequently worse than IKEA-grade, parts arrive in fewer, heavier boxes, bolt counts are enormous on dining sets and gazebos, and you are usually working on grass or patio rather than a flat floor. Budget more time than the indoor equivalent.
What does garden furniture assembly typically cost?
Indicative ranges: £30–£60 for a bistro or small dining set, £60–£130 for a rattan corner sofa set, £80–£150 for a large storage box or small metal shed, and £100–£250+ for gazebos and pergolas depending on size. Two-person items and anchoring add to the top end.
When is the best time to book a garden furniture assembler?
Spring is the crunch: the first sunny bank holiday fills assembler diaries for weeks. If your set arrives in March or April, book assembly as soon as you have a delivery date rather than after the boxes arrive.
Prices and timings on this page are indicative, based on typical quotes we see across the UK. Your job may cost more or less — the only way to know is to get quotes for your specific items and location. This site earns a fee when we pass enquiries to assembly firms; this never changes what you pay.