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Good afternoon @Karamia466
Mmmm is that a picture of what you have now?
My thinking it would look pretty much like yours with maybe a couple of stays (diagonal braces) for the posts.
A barge board secured across multiple studs above the doorway so you can insatll some solid hooks/eyebolts into it.
The posts dug in at least 600mm (probarlly deeper 800mm) with a diagonal brace inline with the edge of the shadecloths fastening point. So post then 800mm from the post another hole around 400mm deep, the diagonal post goes into this and leans against the tall post. (Notched is best)
Concrete them in and let the concrete go off for a week before putting it under pressure of the sail.
Done
Hello @Karamia466
Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about installing shade cloth.
This is a popular topic and has been discussed a few times. I suggest having a quick look at our best advice - How do you install a shade sail? Please note that if your shade sail is quite large, I recommend engaging the services of a professional shade sail installer. Based on the size of your shade sail, they will be able to calculate how deep the post should go and how big and deep the post hole should be. They will also be able to tell you how many bags of cement will be necessary for each post.
If you have any other questions we can help with, please let us know.
Eric
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