When it's moving time, or time to fit a new mattress, the Universal Bed Frame makes change easy because it quickly adjusts. Long-lasting and highly adjustable, it allows you to purchase one frame that fits virtually any bed size. Its primary legs are reinforced with the patented Tri-Support system creating optimal frame support. The nine-leg design includes either 2.5''; in-line rug rollers or 3''; wide glides that are metal reinforced for exceptional stability; in addition, an extra-wide 2.5''; double rail center support is utilized for all sizes. Frame width adjusts between 38 inches and 76 inches with a length of 70 inches.