Discussion Starter · #1 ·
I am adding a 12X15 Garage to the back of my home. I live in the midwest and know I need a frost footer. I will be using two sides of my existing home. I will tie the floor into the existing foundation. Do I also need to tie the new footing into the existing footing all the way down? The garage floor will be on the same grade level as my current basement floor which is a walkout.