How do I build a flush header for a basement doorway?
I would like to use a flush header over an exterior door in my walk-out basement. I recently discovered that I have no rim joists running parallel to the floor joists, i.e., the exterior walls rest directly on the floor joists.
Under normal circumstances, I would cut back the floor joists to double up the rim joist over the doorway and use joist hangers to suspend the floor joists from the doubled up rim joist/flush beam.
What should I do in the case of no rim joist? How do I get the header to fit? Should I shave down the header until I can slide it easily into place from the outside?