There is a small storage closet on the right side.
There's also a drawer under the lower bed, for storing more stuff. Also a small shelf above the lower bed, handy for things like alarm clocks.
The bed is held together with wooden screws - the odd shaped pieces of wood on the bed rails are wooden nuts that screw onto wooden pegs with screw threads on them.
25 years after my dad built this bunk bed, I adapted a loft bed to go over a bed I built
earlier.
More on bunk beds