Guardrail Brackets The Cranetainer System Guardrail Brackets are designed to make a removable guardrail system for use with the Material Handler. Guardrail Brackets Brochure The Material Handler guardrail chains attach to the pre-installed Guardrail Brackets. This system provides a 200 pound guardrail system and allows workers to offload the Material Handler without tying off. When installed correctly, the Guardrail Brackets allow for 7/8” clearance so that drywall can be installed without the need for patches. Guardrail Brackets install quickly with four SDS screws. This safe and efficient Guardrail System prevents costs associated with broken or damaged guardrails, and the hazard of guardrails left down because workers don’t have the proper tools or materials on hand to replace them.