Buying a Bunk Metal Double Bunk Bed Bed Take measurements of the room prior to purchasing a double bed bunk bed with desk bunk bed. Also, think about the height of the ceiling and any fixed features such as windows or light fixtures. Some models include the option of a pull-out trundle double bed bunk beds with desk which is ideal to accommodate younger siblings and visiting houseguests. Certain models feature stairs instead of ladders, which makes it easier for children to climb. Size Whether your kids are sharing the same room or you're putting together a guest bedroom, bunk beds can be an attractive and space-saving option. The size of the bunk bed you select will depend on the number of people that will sleep in it. Triple lofts, triple bunks, and L-shaped bunks are best for larger bedrooms and smaller rooms can accommodate twin over full bunks, or regular bunk beds. Some beds can be divided into two lofted beds to offer more versatility.