This steel girder in a 21-year-old addition was never properly supported. The girder is set into the pockets on the foundation wall at each end, but not shimmed in the pocket. Instead it's totally supported only by a single vertical 2x4 on each end. So, essentially the whole addition is resting on two 2x4s.
Building Inspectors Consortium, Inc.
Lake Bluff, Ill.
courtesy of the ASHI Reporter