The Blueprints are a main mechanic in Chipper and Son's Lumber Co. When obtained, it can unlock many objects to build.
Blueprints are given the right to unlock objects, as of Lumberbots, termite colonies, and much more. There are a total of 30 blueprints to use, each requiring items that can be either easy or hard to obtain. At the 24th page, all pages above that will be unseen, replaced with a big question mark.