Red Jack light duty is ideal for smaller jobs. The type 2 jackpost features modular design for greatest jobsite flexibility; and square post for easy and precise cut down. Use rebar or rod through 9/16" hole for height adjustment 116" - 120". The Red Jack allowable load is 10,900lbs (4,945kg) and factored resistance is 15,600lbs (7,119kg). It is tested to meet or exceed the CAN/CGSB-7.2-94 adjustable steel column standard.