How exactly is the header fastened to the sill plate in box-on-sill construction using 2x dimensioned lumber?
Box on sill construction: fastening the floor to the foundation wall
foundationframing-fasteners
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Best Answer
The photo below shows detail of the rim board to the sill plate connection. Note that except for the high seismic activity areas, this connection does not need to be made very strong, as the rim board is essentially weighted down on the sill plate by the joists and flooring. The joists are connected to the rim board through head nailing from the rim board to the joists.