I'm replacing gates at the rear of the garden due to sagging issues.I'm planning on setting two 8 or 10" sonotubes approximately 12' apart, dug to 48" for Calgary frost line, plus another 6" for gravel.I have 4 pieces of 1/2" rebar @ 48" inside two circles of 6" circumference, tie wired 12" up/down from each end, with no J or L bend on the bottom.4 pieces of 1/2" threaded bar, not ready rod. 14" lenghts, set 12" into the concrete to hold the post holders.Post holders are 1/4" angle, 4x6" bolted to the concrete. They will be painted with tremclad, with either an epoxy or bitumen coating at the bottom where it contacts the cement.Gates themselves will be 3/4" angle iron frame welded 6'sq with a flat bar brace spanning 2 opposing corners of each gate.Piers will be 6' 4x6" PT bolted into the post holders, with similar moisture barrier at the bottom as the post holders .Aside from it being possibly over built, is there anything I should be doing better with the rebar, or general construction. via /r/DIY http://bit.ly/2Kd0oM2
