I built this little building so i would have a small shop to build models in and work on minor things and so on. i build a second story in it that is above where the shop will be. The upper floors dimensions are 6'8"x7'. thanks for the help
If the access is through a trap door in the center, go around the walls for the layout. If the access is through a door on one wall, go around the walls with a big enough table on either side of the door to make turn back loops.