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	Full Flight stairs can be up to 12 feet long and go directly from one floor to the next. These stairs can be used with either poured or precast landings. The bearing is at both ends of the stair.   Full flight stairs can be done at either end of the building as separate stair wells. Or if the building has a smaller footprint they can be done as scissor stairs. This puts two stairwells in the space of one saving the building space.