Bunk bed frame
Bed frames are typically fabricated from angle iron side rails and end rails, welded together in a square with one or more reinforcing pieces extending between the side rails. Springs or wires are strung between the rails to support a mattress. A mounting bracket adapted to hang on pins in each post of a headboard is riveted to a side rail at each corner of the bed frame. Bunk beds having two or more bed members in spaced vertical array have become especially popular because the multiple beds occupy only the same floor space as otherwise would be occupied by the lowermost bed, and normally in most bed containing enclosures floor space is more crowded and less available than vertical space above it. Various nested and other associative arrays of two or more beds have long been known and have become and remain popular, especially where space for such facilities may be limited or where various of the associated bed members may not often be used. A typical bunk bed frame provides at least two planar support surfaces in stacked arrangement and connected to two vertically upright frame members that are located at the head and foot ends of the bed. The support surfaces are usually connected to the frame members at the corners.