The maximum number of students per room was supposed to be 18, so I had him make it to perfectly fit 18 boxes. Well, you guessed it... that rule changed without us being told and now I have 19. That one little box floating around really bothers me. If only I had known! My mom helped me with sewing the cushion cover for the top of this bookshelf/bench. Of course it is removable in case of any accidents, etc. The students LOVE laying on it during Read to Self. I like that it has a purpose in holding all of those boxes, which has now freed up space on other shelves. Win-win.