If you're looking to add caster wheels to a table, there are a few things you'll need to do. First, you'll need to measure the width of the table's legs. Once you have that measurement, you'll need to purchase caster wheels that are slightly smaller than the width of the legs.
Next, it's time to attach the caster wheels to the legs. You'll want to use screws that are long enough to go through the thickness of the leg and into the body of the caster wheel. Be sure to screw them in tightly so they don't come loose over time.
Finally, once all four caster wheels are attached, test them out by rolling the table around. If everything feels secure, then you're all set!