Dorm questions (sorry)

Is there a way to see dorms before arriving, and furthermore what is the furniture like in a dorm. I am in king street single dorm.

Not going to change out large furniture (obvs) such as bed desk or whatever is provided. But I am wondering if I should bring stuff like a spinny chair or a small shelving unit/bedside table. Even a lamp maybe. Idk. Does anyone recommend bringing anything?