The Guardian Fall Protection Toeboard Attachment is intended for use with the standard Guardrail Baseplate, part # 15180, or the Guardrail Knuckle, part # 15186. It requires no penetration of the substrate, and is composed of hot dipped galvanized steel for increased durability and weather resistance. This attachment provides easy adaptability of guardrail systems, and complies with both OSHA and ANSI standards. Toeboards are required if any risk exists for tools, equipment, or materials to fall down from the working surface, and on all roofs with slopes greater than 4/12 (vertical/horizontal).