Last week was a watershed for the lightBOX. The existing house's floor level is now connected to the level of the new slab, and the overall space is starting to be better defined. With the bulk of the North walls up and the vantage point offered by the new floor level, the scale of the addition becomes apparent. It will be an interesting juxtoposition of scale from the enclosed nature of the existing house into the more open and spacious scale of the new living spaces.
Once the old pier and beam floor of the existing kitchen was taken down to dirt and we moved around all of the existing electrical circuits and demoed back the defunct kitchen plumbing lines, a new LVL girder beam was inserted from which to hang the new floor trusses as they span across to the addition slab. That was immediately followed by 1 1/8" tongue and groove subfloor over the floor trusses. We'll now be able to extend the existing hardwoods in to the new kitchen before transitioning down to concrete at the living space.
As soon as the floor was decked, the interior walls that define the stair core and kitchen/utility core were put up. These few walls are conventionally framed and serve to seperate the stairs to the master suite from the more public areas of the expanded downstairs, as well as make space for the under-stair utility room and a mechanical chase that serves the upstairs master bed and bath. The stair framing followed quickly behind the wall framing. Now we wait for the rest of our missing glulams to show so we can finish the rest of the framing.