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In extreme cases of wind:
If the vertical posts are very hollow and weak, add curved braces/brackets which extend below center-line of the post. Or at least a 1/3 down the post.
These can be made of 1/2" steel for example. Or 2x16 wood cut down. Or LVL. Whatever works. Anything is better than no triangulation.
The world is your oyster as to design.
Very strong but also decorative.
That will help keep things square to lateral/side forces.
An open top such as lattice will let air flow through but provide some shade.
A solid top will provide rain cover but might act as a sail and try to pull on the entire structure.
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Meanwhile other things are still happening.
Last edited by john70t; 08-29-2020 at 09:53 PM..
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