I'm with you on buying good HD gates at the coop. However for the guys above talking about making their own gates I would NOT buy galvanized tubing to work with. Welding on galvanized material is extremely hazardous to your health as gases are released. 

If you do need to weld galvanized material you should grind off the zinc in the areas to be welded which sort of negates the anti corrosion benefits of the galvanizing. Weldments should be hot dipped galvanized after welding. But that is expensive.

The red Applegates seem like they will probably outlast me.

Jim at Dawn