This frame is designed for a mattress set measuring 78 inches x 84 inches. King Size brass bed metal bed frame has brackets for both a headboard and footboard, both are required to complete the frame. This frames feautures a rigid center support to provide maximum strength and distribute weight. This frames uses adjustable floor guides instead of wheels. The bolts for the headboard and footboard are not included because different headboards and footboards take different size bolts. No tools needed for assembly. BB44.