We are in the process of updating our barn. It was probably put together with a kit but for whatever reason they never pur any siding over the OSB board. J bought the siding but first things first he wanted to replace this side door with an actual door. It was just a cutout with some hinges, a backstop, and a latch. It worked but it wasn't great. The OSB board was getting torn to shreds at the bottom, it was very narrow, it didn't lock, and worst of all it opened out. That doesn't seem like that big of a deal until you get two feet of snow and your sliding doors freezes shut and then it super sucks. So J bought a prehung door and today he replaced the OSB board and made a box for the door. We got it all the way hung before he had to head to work. I'm super excited to have a inward opening door this winter and to be a step closer to uodating the barn.