Milliard 7-Leg Support System Adjustable Heavy Duty Metal Bed Frame - with Lockable Rollers/Wheels Thick frame construction provides ample support and resists bending or breaking while retaining a semi-portable form factor. Center rail is supported with an extra leg to reinforce every bed frame's weak spot: the middle. Assembles quickly and easily with included hardware. Recessed edges and end caps minimize accidents and maximize safety. Reinforced headboard brackets are designed to fit headboards of almost any kind. Adjustable to fit Twin, Full, Queen.