Anyone have an idea of why my gates are leaning at the top? The gates are 10' long each and were built on the ground with proper bracing. Everything is square and joined with 4 inch lag screws. The bracings are tight and secured with 2 pocket screws on each end. They are attached with 4 heavy duty hinges to a 4 x 6 post and the gate posts are plum in both directions. I also used a support caster on each gate to help prevent the gate from sagging.
See the images below. The bottoms of the gates line up perfectly, but the tops lean out. Appreciate any ideas.