A bunk bed usually has two beds with a bed frame stacked on top of one another. The idea behind bunk beds is to utilize the vertical space of a room to allow two or more beds to occupy a space of one. A metal bunk bed is relatively cheaper compared to a wooden bunk bed. It is also easier to maintain and clean and assemble. When it comes to styling, a white or silver metal bunk bed will make a room appear more spacious. Black metal bunk beds can add contrast to a darker colour scheme room to bring a sense of cosiness to your bedroom. Some metal bunk beds will come with storage and study areas.