Whether you’re setting up a resource for your workplace or building a project at home for fun, casters provide you with a mobility that makes your new custom tool even easier to work with. From custom tool benches to counter top islands to carts for your warehouse, a lot can ride on the right caster. So which one do you need for your current project? There are a few easy ways to assess that.

Size and Load

If you work with a supplier who has clear communications about their product and a good customer service program, it’s easy to find out how much weight each caster can handle. This makes it easier for you to plan your purchase, because while you might not know the exact weight of your build, ballparking it into a 50 to 100-lb range isn’t difficult for most fabricators. Load bearing capacity is only part of picking the right size and caster style, though. You also need to consider ground clearance and how much of it depends on your casters, as well as your ability to turn at speed. Larger casters make cornering with heavier loads easier at speed, and they also provide stability at every point.


The other major consideration is what you want your casters to do. From spring loaded casters with responsive locking mechanisms to hold your cart in place to fixed-direction utility wheels, the right features dictate a lot about how your cart project will move and handle. The right choice can make the difference between a fluid experience and a frustrating one for the end user.

Replacement Casters

Sometimes, it’s not a matter of finding casters for a new project but of finding replacements to fix an existing cart. In that case, your best match will be to look at the one that broke and find the same size and features in a replacement. Rarely, you may have a color mismatch, but since a lot of casters are made in neutral or monochrome colors, that’s not an issue for most builds.