Framing the walls

I started forming the 2x4 walls around the room. For any wood that touched concrete (the base plates and the 2x2 used next to small section of concrete wall) I used all pressure treated wood. For any nails I used on the pressure treated wood, I made sure to use the "hot dipped galvanized common" 8d nails. For nailing into the regular wood, I used bright common 8d nails. To attach the pressure treated wood to the concrete I used construction adhesive and Tapcon 1/4" x 2-3/4" concrete anchors. I didn't really want to deal with shooting nails into the concrete. I used a Tapcon drill bit to use with the 1/4" screws and while a couple holes seemed impossible to drill out, it worked out quite well.

Here's a overall before and after of the two walls I completed.

before - foam all installed.

after - new wall secured with 24" on center studs

before of dividing wall

after with foam installed over concrete section