Correct. Scale the cells up or down however you like. I treat mine as 1" for small projects and 3" for large. Using the right click> format cells tool, outline the appropriate board size. Now lay out your parts on the "board" with bold lines. Keep in mind this won't take blade loss of wood into account. It's just a down and dirty layout option when you none care to lay it out for the grain. I usually use this for sheets of ply that have a lot of party's coming from one sheet.