A working showroom is a showroom
in which people work
. The one example I know of is in furniture
companies, which furnish their offices with their own furniture, and use them as a showroom, rather than have a big showroom separate from the office staff
. All the offices are set up by theme: the marketing office
has all the trendy furniture, and the accounting
office has a the traditional
My sister works in a working showroom, and it's good because they get all the newest and best chairs, desks, and cabinets. The downside is, there are always people going on tour through the office, so the employees are required to keep their desks in pristine condition at all times.