Well to get that you will have to finish the technology with the same name first which is in chapter 4. When you finish the technology a window will appear and tell you what levels of the building you are now allowed to build. Since i am new in game i have not reached that far and i can not tell you the exact level.
Superior Planks Manufactory is a research item.Once you research it,you have to upgrade ur manufactory to Level 9-12 I use marble and my levels are 22 maybe