DURHAM Mobile Expandable Bar Rack is designed for efficient handling of pipe, tubing and bar stock. Adjustable arm assemblies slide along center channel and extend out to 12' to handle different sized material. 3" channel steel arms include support bars welded at an angle for maximum support. Channel steel deck is covered with heavy gauge sheet metal for increased strength and durability. 12x3" plastic wheels and 6x2" swivel casters are mounted in an efficient diamond pattern.