These are folding panel doors. There are many different manufacturers that create a door like this. Depending on what you want as far as material (wood, metal, vinyl-don’t do vinyl), I would look at Pella, Western Door Systems, Weathershield, and Anderson to start. But just put in folding panel doors in google search and have fun! Best wishes.

Hi! These are steel doors. Some companies that make them are hope, bliss-nor...but we went with accompany called manhattan iron and glass. They did an amazing job!

Thanks!