Arxx Tall Wall System allows building tall walls with Arxx ICFs to 125 ft. without requiring scaffolding engineering while meeting OSHA wall attachment and safety requirements. The system is made from heavy-gauge solid steel and provides the installer stability, and with attachment to the wall, complete control over the ICF wall during the building and pouring phases for straight and plumb tall-wall construction. Arxx Building Products. 905-477-3991.