Building an arbor

Soldato
Joined
14 Jul 2005
Posts
9,518
Location
Birmingham
Planning to build a wooden garden arch/arbor to replace an old metal one that is almost falling over and which is carrying a mature climbing rose.

Just wondering if anyone's made one and what timber you used.

I was originally thinking 8 ft 3x3 posts, with 1 ft concreted in the ground leaving 7 ft above. But this might not be enough. I could instead go for 10 ft 4x4 posts possibly buried 2 ft into the ground which will make an 8ft tall structure. Obviously an intermediate size could be 4x4 posts 8ft long with 1 ft buried. I can also get 4x3 posts.

I don't want to dig down more than 2 ft. Even that might be difficult hence originally planning for 1ft.

Top cross member was planning to be 6x2.

Would be built around a prefab piece of 6x2 trellis on each side. So the structure will be just over 2 ft front to back.
 
Last edited:
The depth depends, its just a small structure with holes in so wind load isnt like a row of.fencing when you go 600mm deep. I wouldnt overthink it tbh.

Softwood fence posts will be fine, oak posts look better.
 
If I were you, I’d probably skip the 3x3 and, if you’re replacing a metal arch with a fully grown rose, go for a 4x4. Just so it doesn’t look a bit flimsy in a year or two. If you dig the posts about 45 cm deep and attach the top brace properly, 2.4 m seems sufficient to me. Drive-in stakes can work, but for a heavy rose I would still opt for posts set in the ground.
 
Back
Top Bottom