If there is anything to be learned from the foodservice industry, it is that you can never have enough workspace. One solution would be the Turbo Air 30 inch x 36 inch S/S Work Table with Galvanized Undershelf (TSW-3036E). Easy to assemble, all of its edges are finished to promote safety, with ends turned down to provide flush seating against walls. The TSW-306E also features sound deadening tape between the top and frame to reduce excess noise. Strengthening gussets have been inserted into the frame to prevent lateral movement during use. An undershelf for storage is also available on the Turbo Air - TSW-3036E - 30 inch x 36 inch S/S Work Table with Galvanized Undershelf (TSW-3036E).
The table below can accommodate casters. https://www.etundra.com/kitchen-supplies/work-tables/work-tables/elkay-wt30s36-stgx-30-inch-by-36-inch-heavy-duty-stainless-steel-work-table/