large swing out doors. i think ya nutz. a little bit of wind grabs a hold of them, and they are more likely ripped from your hands. due to larger size of door, it also means any small defect in how square they are. = bottom edge of door grabbing and sliding along the ground making them even harder to open. and if they are slightly off square, you may not be able to physically lift and jamb and body slam the doors to close them.
there be a reason, why folks use sliding doors (move left or to the right) to open much like a sliding glass door on a home. and/or using roll up doors. they are so much easier to open, and they stay open, and do not take a large amount of room out in front of them to keep them open. and if they get a little bit out of whack, it is fairly easy to re=adjust tracks or like to get things aligned back up.
having double doors on a house vs a sliding glass door. ya ok, i will bite, it is fairly easy to man handle swing out door, every house out there have swing out doors, and majority of all business do as well. but as soon as you go up in size "shakes head no"
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search for "metal shed manufactures" or "metal barn manufacturers" all of them normally sell some sort of large door systems, and more likely a variety / types of doors. they will also most likely have some sort of color patterns to pick from. along with different type of lock setups.
"morton buildings" comes to mind as one metal shed company, that should have a wide range to pick from, i would suggest calling them directly. vs relying on website, and see what they could do for ya.