I have a room where I would like to add a door to the outside.
The house siding is cedar shingles and the room is not insulated (which I am going to add).
I believe it should be relatively simple to do (I'm not looking for anything fancy but do want the door to seal properly).
I think all I have to do is cut out the rectangular region for the door, properly sized, then frame up the entryway using 2x4's and secure it properly to the rest of the framing.
The main issue I am concerned about is with the shingles as it will be difficult to fix if a mistake is made.
Any tips or concerns I need to keep in mind?