Ask yourself, “Am I the type of designer who can create a nice kitchen from parts and pieces in a spec book if a particular SKU is missing?” Over the years I have found higher end designers have a hard time doing this. Conversely, designers who start out selling cheaper cabinets develop a special talent in creating nice designs from a limited SKU list.
If you are squeamish about describing and / or showing these items to your customer, you may be better off not selling Stock cabinets. Don’t leave yourself open to complaints, loss of profit, or potential bad online reviews.
However, if you can create the right expectations, Stock cabinets will create sales for less expensive, lower budget jobs.