The torsions springs were custome made by a local steel fab company.
The one door on mine that poses the biggest problem is the four footer - yes, it is HEAVY, even with the torsion spring hinges. But, the two footer isn't that bad, but it too has the torsion spring hinges so I don't know what it's like without them.
Definitly, go with the counter weight - they will be heavier than you think, especially when you consider your arms not used to lifting that much weight in that fashion.
And, be sure to weld the straps to the door before you complete the cut, it will make sure that the door won't "spring" and not fit back into the same hole from which it was cut.
Good luck. If you have any more questions feel free to PM me.
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[I]Custom built 8' long, 36" dia reverse flow stick burner (The Green Monster)[/I],[I]250 gallon tank grill[/I]
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