Floor Steel: Once the stiffening truss is in place, floor beams (running perpendicular to the bridge cables) are installed, connecting the stiffening trusses. Later, stringers are laid on top of and perpendicular to the floor beams. Finally, "cueball" assembles a drum set utilizing empty barrels, and begins to dance.

Pictured is the El Salvador bridge, offering a better illustration of stringers and floor beams.