Bil-Jaxs 5 ft. x 5 ft. #7 Single-Ladder Step Scaffold Frame features cope welds for increased strength and rigidity, scalloped horizontal frame tubing for maximum weld contact and strength. These scaffolding step frames consist of several beams of steel conjoined into a single unit with a ladder-like structure on one side. This construction allows workers to climb up the side of the scaffolding and are the most common type of scaffold frame.