The AnthroCart - 150lbs
Fit System - 150lbs
AnthroBench - 300lbs in mobile applications, 400lbs in stationary applications.
Utility Bench - 500lbs
Convoi - 500lbs
If your unit will be holding quite a bit of weight or needs to be very mobile, you should consider upgrading the casters to larger ones which will provide more stability and make it easier to move. On the other hand, if you need to keep your furniture from rolling, you can order glides for your AnthroCart instead of casters.