Classic Brands Hercules Universal Heavy-Duty Metal Bed Frame | Adjustable Width Fits Twin, Twin XL, Full, Queen, King, California King Heavy-duty metal bed frame adjusts to fit Twin, Twin XL, Full, Queen, King, and California King size mattresses and foundations/box-springs 70" W x 75" L x 7" H Maintain stability and maximum weight support for your mattress set; interlocking key slot rails with 2 1/4 inch center beam provide stronger support for heavier mattresses, weight capacity should not exceed 550 lbs Black matte powder coated solid steel construction supports all mattress types and easily attaches to a headboard (headboard and brackets not included) 7-wheeled legs with locking rug rollers so frame and sleep system can be moved easily and locked into place. Ships small parcel in a compact package to easily fit through narrow doorways, hallways or stairwells The interlocking frame is easy to assemble in minutes; no tools required. 5 Star Customer Service; Available 7 days a week