My Powermatic 66 has sat on an HTC 3000 for about 12 - 15 years. While the saw itself is heavy, mine has the original two cast iron extensions, both on the right side as well as a Grizzly cast iron router top and the wooden extension that came with the saw. I also have no longer available sliding table that Jet used to sell and I added 8020 1545 extensions to the front and rear and an attached folding 8020 rear extension. This monster has to weigh in at close to 1000 lbs and and is close to 8' wide. I can move it easily by myself.