Marr is the New England distributor of the Hi-Lite Modular Aluminum Shoring System. The system is hi-strength and lightweight and has been engineered for quick assembly into various widths and configurations, saving time and labor costs over the course of a project. The system accommodates safe working loads up to 22,700 kg. (50,000 lbs.) per frame, when using a safety factor of 2.5:1.