When replacing a load bearing wall what size lumber do I need to support a second story floor when the opening is 16ft. This wall is in the center of the house which is 24ft wide
skiberger
Nov 7, 2006, 08:07 PM
You best be asking a structural engineer.
If your going to clear span the opening you may a steel beam or a microlam beam.
These beams will need to be spec'd/sized by an engineer.