The Mantua Max Bed Frame is designed with high-carbon, ribbed steel side rails to provide maximum support for the mattress and box spring from queen to California king. A wedge-lock style makes the bed frame stronger as more weight is applied. Additional foot clearance is added with the use of our recessed leg design; whether you’re using the king bed frame, or queen bed frame the Mantua Max Bed Frame is designed to fit your lifestyle. No tools are needed for the assembly and includes a double center rail for strength and six legs with glides.