Hi folks, Just wondering if anyone can help with a few questions I have. I'm working on a design of a gate which, instead of using a traditional hinge system, will consist of an outer cylindrical post with the gate leaf welded directly onto it, and an inner cylindrical post which will bear the load and will be fixed into the ground. The Outer post will pivot around the inner post, using the same axis, and will be equally spaced using bearings. My question is, how do I stop any 'sagging' of the gate? Are there any equations I can use e.g. something which incorporates the height of the post, the length of the gate, the weight of the gate etc. OR is it just a simple matter of making sure the gate post is heavier than the gate to centre the weight at the post? Like with everything, I plan to keep the cost down so I don't necessarily want to buy heavy material with a sole purpose of, err... being heavy. Maybe a thinner walled post and filled with postcrete? I appreciate any help on this matter. (Apologies if I've used the wrong terminology) Thanks. Stephen.