Wooden Pergolas: Timber That Lasts Outdoors

A wooden pergola kit in Ireland costs €428 to €733 for a 2.4 m square up to a 3.4 m corner pergola in pressure-treated softwood. Larger timber pergolas are built to measure by a carpenter and priced on the job. How long one lasts comes down to one detail: the posts must sit on metal shoes above the ground, never in soil or concrete.

The timbers, the sizes, and the detail at the foot of the post.

Free, no obligation. One local company prices it, not five.

  • €428 to €733a timber kit
  • 2.4 mthe smallest stock size
  • Off the groundwhere the posts should sit

Which timber

TimberWhere you'll see itLooking after it
Pressure-treated softwoodWhat most kits areRe-treat cut ends. Stain or oil every two to three years
Larch or Douglas firHeavier sections, built by a carpenterWeathers to silver if left. Lasts longer than softwood
OakGreen oak frames, pegged jointsMoves and cracks as it dries. That's normal
GlulamLong spans without a middle postFactory made. Needs a finish kept up

The foot of the post

A freestanding timber pergola with slatted roof over a paved seating area in a garden

Timber rots where it stays wet, and that is at the ground. A post set in concrete holds water around its base and fails there first. A post bolted into a galvanised shoe, with a gap under it, dries out after every shower. Ask how the posts will be fixed before you ask anything else.

Sizes that work

  • 2.4 m square: a bench and a small table. The smallest stock kit.
  • 3 × 3 m: four chairs, or a corner sofa.
  • 3 × 4 m: a table for six. Usually built to measure in timber.
  • Over 4 m: needs a deeper beam or a middle post.

What timber costs

JobTypical costWhat moves the price
Timber pergola kit, 2.4 m square to a 3.4 m corner€428 to €733Size and timber. Fitting and a base are extra
Side screens and blinds, a side€265 to €489Width, fabric or slats, fixed or sliding

A timber kit is delivered, not built. A carpenter's day, post shoes and a base are extra.

Wood or aluminium?

Timber is cheaper, warmer to look at and easy to alter. It needs a coat of something every few years. Aluminium costs more, needs nothing but a wash, and is the one that takes a louvred roof: see aluminium pergolas. For building detail, see pergolabuilders.ie.

Every guide, calculator and county page

Jump straight to any specification guide, our interactive calculator, the technical glossary or your county page.

Pick your pergola

Four taps: the type, where it's going, the size and the help you want. You see our price guide for it. Your number is only asked for at the end, if you want one pergola company that covers your county to ring you.

Which pergola do you like?

Pick the nearest. You can change it.

Questions people ask

How long does a wooden pergola last?

A treated softwood pergola with its posts off the ground and a finish kept up lasts many years. Posts set in soil are what fail early.

Can a wooden pergola have a roof?

Yes: polycarbonate sheets on the rafters with a slight fall.

Will it hold a swing seat or a hammock?

Only if it was built for it. A kit pergola is sized for its own weight and climbers.

Get a price for a pergola in your garden

One pergola company that covers your county. Free, no obligation. Nothing is ordered until you accept a written price.