I know this is an old thread but I just learned somthing to share.
I was dreading this restoration of a 6 case vertical because of the sagging main door. As it turns out, the hinges and latches were all fine as were the screws that held the hinges. But the wood below the inner liner was completely rotted out and that's how I discovered how important it was to structural integrity. I removed just the bottom wood and could watch the weight of the door distort the inner frame, as could be imagined just by looking at pic 2 below.
By removing the door and laying the cabinet on it's back, the frame assumed it's normal position. Then by bolting in a 30"piece of 1" angle, steel took the place of the wooden framework. I can't get over how easy the door swings and now lines up like new. It will even open and close using 1 hand on the latch. This $4.00 improvment could be made to any 110 without even taking the breaker strip or wood out.
This is a preliminary finding. I still need to add more screws through the front of the angle (or weld it). It also slightly blocks the drain and compressor lines but since they are both copper, they should bend just fine.
Hope this helps some more of those 110 doors out there.
