They are big joints with a ton of surface area for glue.
How to build a large gate that won t sag.
Built with standard diy woodworking joints the gate will twist unless it is braced or pulled into tension.
It s sturdy doesn t sag and opens up on both side so i can drive my suburban in.
You need to make sure that hanging the gate won t pull the posts to one side.
The unhinged free side sags from its own weight and from the trauma of being slammed.
The way you anchor the post will depend on the size of the fence but in general you need to make sure the post doesn t wiggle with weight.
The old fashioned technique of using diagonal.
You should also check and see that the post is level straight up and down.
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May 24 2016 tight joints.
Use a dado blade.
Paul keeps a dado blade on a portable table saw for such projects.
The keys to ensuring that your wooden gate won t sag are to build and reinforce the gate frame so it doesn t warp to hang the gate plumb and to distribute the weight of the gate over as much area as possible.
If it can be easily moved the gate will sag.
Garden gates sag because a square or rectangular frame is essentially unstable.
The secret to big gates that won t sag.
To cut the lap joints.
This tendency is exaggerated because a gate is held along only one side.