Over the last few evenings I’ve been making progress on the center wall, getting ready to place the 22′ 16″x5-1/4″ beam.
First I built the walls that the beam will sit on.
Then I build a box around the steel column with rigid foam insulation, which I then used spray-foam to close up the gaps in.
Then, the tricky L-shaped walls that wrap around the columns.
The finished product is more stable than I expected. I still intend to put some diagonal bracing on it when the beam goes up.
Peter is coming tomorrow to help place the beam. Then it will be on to floor joists.