In our dining room there are some shelves in what used to be a window, that was originally a door. I've been using it to store tools, nails, and other miscellaneous junk.
I thought about returning it to a window but to do that I would want to make it the same size as the rest of the windows in the house. This would require tearing out a large portion of the wall and a lot of re-framing.
So I decided to go back to a door instead. This would require a lot less work and it would return it to the way it was originally, I'm a big fan of returning things back to their original state whenever possible.
I started by removing all the tools and junk, then I removed the shelves and casing.
Next I removed the window framing.
Then I installed a sill, built the door casing, cut the door to the proper size, mortised the door and the jam for the hinges, and hung the door.
I still have a lot left to do, I need to install the inner door casing, plinth blocks, and rosettes, trim, install glass in the missing panes, install a door knob and lock, and caulk, primer and paint everything.