Light duty for smaller jobs. This light duty type 2 jackpost features modular design for greatest job site flexibility; and square post for easy and accurate cut down. Use rebar/rod through 9/16" hole for height adjustment 104" (2642mm) - 108" (2743mm). The allowable load is 12,200lbs (5,535kg) and factored resistance is 18,400lbs (8,385kg). It is tested to meet or exceed the CAN/CGSB-7.2-94 adjustable steel column standard.