I just got a Lincoln 180C MIG welder and it weighs 80 lbs. I have a HF 3 tier MIG welding cart and it holds 100 lbs. My feeling is the cart would be top heavy heavy and between the welder and gas bottle would be over 100 lbs. I see some welding carts are only 2 tiers. So it should not be top heavy. Northern has a welding cabinet that looks nice but is about $170. A lot for a cart.