A bed frame is the part of a bed used to position mattress (foundation), and may include means of supporting a canopy above. Bed frames are typically made of wood or metal. A bed frame includes head, foot, and side rails. It may also include slats to support the mattress, in which case a separate base is not necessary, as in a platform bed. Most double sized beds, along with all queen and king size beds, require some type of center support rail, typically also with extra feet extending down to the floor.
Brass beds are beds in which the headboard and footboard are made of brass; the frame rails are usually made of steel. Brass beds can be made of 100 per cent brass or of metals that have been brass-plated.
Iron beds are beds in which the headboard and footboard are made of iron. The frame rails are usually made of steel. Iron beds were developed in 17th century Italy to address concerns about infestation by bed bugs and moths
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