Wheel Dollies, Casters and Tire Accessories

Sizing wheels for a rolling load

Dollies and casters both put wheels under a load, but they do different jobs. A wheel dolly set cradles a vehicle's tires so a parked car can be rolled sideways in a tight space. Casters are single wheels fitted to furniture, carts and equipment. Choose by load rating, which is normally given per wheel: divide the total weight by the number of wheels and leave a margin. Wheel material changes how it rolls. Hard wheels move easily on smooth floors, while rubber runs quieter and protects the surface.

For casters, mounting matters as much as the wheel. A threaded stem screws into a hole and a top plate bolts to a flat base, so the thread size or bolt pattern has to match. Swivel casters turn freely, some with a brake, while fixed ones track straight. A cart often pairs two fixed with two swivel casters. Fit wheels of the same height, otherwise the load sits at an angle.

Tire accessories that depend on your tire size

Tire accessories depend on details printed on the sidewall. Snow chains and cables are made for specific tire sizes and must clear the wheel arch, so check your vehicle's clearance and the maker's size chart. A plug kit for punctures is a temporary roadside fix for small holes in the tread, never for sidewall damage, and the tire should be inspected afterwards. Bluetooth pressure monitors use sensors that screw onto the valve stem or sit inside the wheel, so check sensor type, battery and app support.

Questions about Wheel Dollies, Casters and Tire Accessories

How do I work out the load rating I need for casters?

Add the weight of the item and everything it will carry, divide by the number of casters, then add a margin of about a quarter, because uneven floors can put the load on fewer wheels at times.

Can I repair a tire with a plug kit?

Plug kits suit small tread punctures and are generally treated as a temporary fix. They are not for sidewall damage or large holes. After using one, have the tire inspected, and replace it if the damage is near the edge of the tread.

How do I pick snow chains for my car?

Find the tire size on the sidewall, such as 205/55 R16, and match it to the chain maker's size chart. Also check the clearance between tire and bodywork, since some cars cannot take chains and may need textile snow socks or another type.