Make your Frontier OS35 sawmill mobile for easy towing through your woodlot and directly to your sawing site. Once you arrive, effortlessly level your log deck using the convenient adjustable support jacks. Package includes the all-steel and powder-coated sub-frame structure including connecting brackets, axle, two 12” (30.5cm) wheels, quick-disconnect drawbar, running lights, wiring harness, safety chains, 2” (50mm) coupler and 6 support jacks. Note: Maximum of one 7-foot (2.1m) extension recommended on trailer-equipped model. Additional sub-frame extension/support jack package required to support the extension sold separately.