I am finishing the basement and one of the last things I have to do before drywall is replacing the exterior door in the walkout basement. The foundation is 8” thick concrete once the interior wall framing is added it will be 12” thick. The hole in the foundation is also 2” off of the basement floor. Once I frame the hole the rough opening will be 78” X 34”, so I know I will need to order a custom door.
A couple of people have recommend installing the door on the outside side of the house and have it open outside, because I would have an issue finding exterior jam/threshold extensions that would fit if I installed it normally. This doesn’t seem correct to me. My thought is use a 2X12 pressure treated to make the frame, that way it will join to the wall frame and then install a prehung door opening into the house. I would then either buy extorior jam extensions, if they make them that big, or build my own. I would also have to build up some wood under the thershold to make the door level with the hole in the foundation. Am I missing something?
A couple of people have recommend installing the door on the outside side of the house and have it open outside, because I would have an issue finding exterior jam/threshold extensions that would fit if I installed it normally. This doesn’t seem correct to me. My thought is use a 2X12 pressure treated to make the frame, that way it will join to the wall frame and then install a prehung door opening into the house. I would then either buy extorior jam extensions, if they make them that big, or build my own. I would also have to build up some wood under the thershold to make the door level with the hole in the foundation. Am I missing something?