Exterior door clearance issue
Hello GBA community,
While I know questions here are usually focused on rigid foam, unvented attics, and mini-splits :-), I have a more mundane question I could use help with.
I’m finishing my basement in CZ 4a and the flooring assembly, including finished floor, is 2-1/8″ thick. I have two exterior doors in this walk-out basement, and when the builder mounted them, they only left approximately 1-1/4″ clearance between the door slab bottom and the concrete floor. These are steel exterior grade doors, so I don’t think I can just trim the bottom of the slab like I could with an interior wood door (if I’m wrong let me know!).
Both doors have approximately 1.5″ of space between the top of the door jam and the rough opening that is currently filled with foam. So, my plan is to move the entire door assembly up in the rough opening 1″ to 1.5″. I have two real questions:
1. What is the likelihood of accomplishing this and reusing all the materials (exterior brick mould, door jams, threshold, etc)? Luckily, the interior side of the door has not been trimmed, so no need to worry about that right now. I’ll obviously cut the caulking & nails, and be as gentle as possible with the prying, but am I just asking for trouble trying to reuse the door? They are perfectly good doors at this point, just too low for my new built-up floor.
2. What does the threshold area look like? Do I run the subfloor all the way out flush with the exterior side of the exterior wall, and set the threshold on top? Do I stop the subfloor at the interior side of the wall and support the threshold with a 1″ or 1.5″ piece of pressure treated lumber? Just not real sure of what the raised assembly looks like and how to flash/water proof it.
I’ve attached some pictures of both sides of one of the doors. Appreciate the help and input everyone.