In most cases, we have to get used to the fact that all furniture modeling will have to start from scratch and with no blueprints available. All the references that we will have are photos provided by clients or provided from web resources.
If you have it available, take some time off to visit a real store, and take some pictures and take measurements on your own. Sometimes these stores will give you flyers and brochures, especially if you work with architecture. With time, you will get a lot of good reference material, and some of them come with measurements.
But if you don't know where to get started, let me point you to some great web resources: