https://postimg.cc/gallery/dZxQZ1L

My attic has a finished floor and has collar ties located about 2/3 of the way up. It is my impression that I can relocate these collars ties all the way at the top to open up walking space in the attic. It’s my understanding that the ceiling ties below the finished floor are countering the forces of downward/outward pressure at the walls of the house, while the collar ties are countering upward lift, and they can be safely located all the way at the top of the attic instead. The house next door to mine (same design) has collar ties at the top as I describe, resulting in a walkable attic space.