Mine was an air operated inward folding door...
I opted to flip the leading piano hinge and make the center fold solid to create a 1 piece outward opening door. Haven't regretted it once in 18 months!
As a bonus, I pulled the air solenoid, shortened the line leading up above the door and tapped into the line to run an air nailer.
Along this page somewhere
Door lock here: it's also been flawless