The phrase "ft ceilings" refers to the height of the ceiling in a room or building, mentioned in feet. It tells you how tall the vertical space is from the floor to the ceiling. Full definition
Gas log fireplace, Main floor laundry, 9 ft ceilings on main and in basement. (cheyennehomes.com)
Large windows throughout main floor with 18 - ft ceiling in living room and cozy natural gas fireplace. (deanbirks.com)
At the top of the homeowners wish list were soaring ceilings along with windows in the main living, kitchen and dining area, making 8 ft ceilings throughout not a viable option. (homebunch.com)