Brothers

At first I did not understand Jeanne's long desire to put bunk-beds in the boy's room.
Why does he need 2 beds?

It could be because his brother has a bunk when needed, it could be when Kopper is not in his bunk, the lower bunk becomes some kind of Star-Wars fighter space ship thing. Or maybe because these sturdy oak bunk-beds, once belonged to his Cousin Bill, and to Tommy, you don't get much cooler then Cousin Bill.

To Me, when tight on space, "Build Upwards".