"Sunken living room" (joists?)

I am wanting to build a "sunken living room/conversation pit" in my (newly made to be) open floor plan living room, dining room, kitchen. From what I have read. These concepts are primarily built in with new construction or in houses with crawl spaces. I, have a full basement. As for the loss of head space in basement. That is fine. I plan on using that area (walled in) as a seasonal storage cloest. (Holiday decor, seasonal clothing) Just curious as to what would be needed other than a support frame for current and unaltered joists and the new "sunken joists"

Question by TylerPatrick 2 months ago  |  last reply 2 months ago