I bought mine when the caster option was out of stock, but they recommended buying M12 casters of Amazon as an alternative option. The plate they come with to mount is extremely thick and extremely sturdy. But my recommendation would be to look up "Stem Levelling Casters with rachet handle" on Amazon which is what I got because they would as both a leg and a set of casters, support way more weight than you'd ever need and give you the best of both worlds.