Welding Cart: Size, Capacity and DIY vs Bought
A welding cart holds the welder and its gas cylinder on wheels, so you can move both around the shop without lifting them. Choose a cart by its weight capacity (the machine plus a full cylinder, with margin), a cylinder tray with a chain or strap, and wheels that suit your floor. For a standard MIG or TIG machine a bought cart is the practical choice, and a DIY cart only makes sense if you already have the tools and a clear design.
What a welding cart should carry
- The welder, on a flat deck or top shelf.
- A gas cylinder, upright in a tray or basket, secured with a chain or strap.
- A spot for the torch, ground clamp and cables, usually hooks or a tray.
- Small items such as spare tips, pliers and a chipping hammer, in a drawer or shelf.
A welding cart is not a work surface. For the place where you weld parts, see welding tables: top thickness, size and DIY vs bought.
How to size a welding cart
| Check | What to look for |
|---|---|
| Weight capacity | Machine weight plus a full cylinder, with margin. A full 80 cu ft cylinder can weigh over 100 lb (45 kg). |
| Deck size | Large enough that the machine does not overhang the edges, which makes it tip. |
| Cylinder tray | Fits the cylinder diameter you use and has a chain or strap. |
| Wheels | Larger wheels roll over cracks and cords. Two locking casters keep the cart parked. |
| Height | The machine’s controls sit at a comfortable reach. |
Machine and cylinder weights differ by model, so read the machine’s data plate and the cylinder’s stamp rather than guessing. The MIG welding guide covers what the gas cylinder is for.
Bought vs DIY welding cart
| Bought | DIY | |
|---|---|---|
| Time | Ready to use | A weekend or more |
| Fit | General design, may not match your machine | Built around your machine and cylinder |
| Tools needed | None | Cutting and welding gear, steel stock, casters |
| Weight rating | Printed by the maker | You must work it out yourself |
A DIY cart is a good project if you can calculate the load and use thick enough tubing and welds. If you cannot rate the load, buy a cart with a stated capacity.
Safety
- Secure the cylinder upright at all times, even when you move it, and close the valve when you stop welding.
- Keep the cart on level ground and lock the wheels while you weld.
- Never lift the machine and cylinder together; roll them.
- Keep cables off the floor so you do not trip on them. See welding safety tips.
Related guides
Frequently asked questions
Do I need a welding cart?
If you move the welder between spots or use a gas bottle, yes. A cart keeps the machine off the floor, holds the cylinder upright and makes the setup mobile.
How much does a welding gas cylinder weigh?
A full 80 cu ft cylinder can weigh over 100 lb (45 kg) with the gas, so the cart's rating must cover the machine and the cylinder together. Check the cylinder's own tare weight on its shoulder stamp.
Can I weld on a welding cart?
Only if the cart is made for it. Most carts are for carrying the machine; a welding table is the work surface. See welding tables.
Do I have to chain the gas cylinder?
Yes. A cylinder must be secured upright with a chain or strap. A cylinder that falls can snap its valve and become dangerous.
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