JMH, Inc. was established under Johnstown Material Handling in May of 1989. We are a complete material handling house offering concepts, design and installation.JMH service's your warehouse needs with New and Used pallet rack, shelving, dock equipment, cranes, and conveyor.Office space your concern? JMH will help design and install implant office's and mezzanines. Office layouts and furniture are available as well. Material Handling Equipment Installation, Anti-Fatigue Mats, Casters, Dock Equipment, Hand Trucks, Scales, Commercial & Industrial Vacuums, Ladders, Material Handling Supplies, Scissor Lifts, Safety Mirrors.