Proposed Knee wall "Box Beam" to support (e) ceiling joists below. Ceiling joists to be converted to floor use; (e) ceiling joists are inadequate to support roof load at knee wall + new floor loads.
(e) knee wall is 2x4 studs @ 16" oc, unsheathed (5 ft tall).
I've considered cdx ea. face, w/ (n)...