Thanks for your question, and we apologize for the delayed response.
While we don't currently stock any casters for this 18246Z5 5-shelf unit, all Nexel Industries stem casters will fit. Depending on the size and style you'd like we can certainly match up a set of casters for you. Please give a member of our Tundra Restaurant Supply team a call at 1-888-388-6372, and we'll be happy to help.
Answered on 9/24/2013 by Andrew Call from Boulder, CO