I've re-installed a new down wood fence between my yard the neighbors with the usual 8' 4x4 PT posts, PT rails, and cedar panels. The fence runs along the side of the house and it starts at the end of a driveway slab. The start of the fence in a 8' 4x4 PT post sunk in 18" of concrete and 6" of packed dirt. Opposite this post is the side of the garage.
Previous owner had installed a PT 4x4 on the side of the garage, lagged into a stud on the garage siding. The gate that was installed was in disrepair, so I am installing a new one and split that gate in half, so there's one 4' wide panel and a 3' wide panel to fill a 7' space.
My concern is that installing a gate that is hinged on end post of the new fence will cause that post to lean in toward the side of the garage and causing the gate to sag and look bad.
Are there any bracing techniques that I can use to help prevent this leaning? I thought I had previously read about nailing a 2x4 to the backside of the 4x4 and then using longer lag bolts to attach the hinges by going all the way through the 4x4 and the 2x4. Maybe including a metal plate on the backside?
I'm not sure that driving a wedge at ground level will do much because the soil is packed in there, it's only hand-packed and only been that way for 2 months or so since installing that new post.
I don't have another post behind it in order to cable off to that to provide pull tension away from the garage.
I hope I'm missing something obvious...Are there some other ideas?
Thanks in advance.