Building advice for fences

[JohannesR]

Hi!

I have a somewhat crazy idea that involves building a plank 7 m wide and about 3 m high. I wonder if there is anyone who can seriously answer if it will hold and not become wobbly if built with ground anchors 900 mm, 5 of them, and then uprights and then horizontal paneling on it?

Tips and advice are gratefully received,

 

[larsbj]

It depends a lot on both wind and ground conditions, but I would recommend real plinths with a cast footing if you want to be secure against wind load and frost heave.

 

[JohannesR]

OK I live in the Uppsala area, how long do the plinths need to be? How many are needed for 7 meters?