What is the difference between a vellum and a blueprint?
Vellum is a type of paper that the home plan is printed on that allows you to make changes to the home plan. When you purchase the vellum you also get a license that allows you to make changes, make copies and allows you to build one home from the home plan. A blueprint is a type of paper that does not allow you to make any changes or copies. They are similar to a copy from a copy machine (except they are black and much larger).