Advantages of Precast Stairs and Landings Industry Leaders We Work With Building Systems Types of Stairs JJ Hook Barrier Traffic Safety Products Other Precast Products Quality Request a Sample Installing a Stair Galleries Links	Half Flight Stairs   Half flight stairs go half way up a floor and are attached to a landing. Another stair is attached to this landing and goes the rest of the way up the floor to another landing. There are two stairs and two landings per floor. The bearings for these pieces are at the side walls.