Bed Frame includes multiple support features for added durability. Its primary legs are reinforced with our Tri-Support™ system creating optimal frame support. With seven locking legs that create triple-thick steel strength and exceptional stability, the frame includes either 2.5-inch in-line rug rollers or metal reinforced glides. In addition, a 1.5-inch center support is utilized for Queen size. Frame width adjusts between 38 inches and 60 inches with a length of 70 inches. REQUIRES THE USE OF A BOX SPRING. Tri-Support™ system creates optimal leg support Solid construction offers a strong foundation for any mattress 2.5-inch in-line rug rollers or reinforced glides Seven legs and center support for Queen and Full sizes Easy 5-minute assembly from box to bed frame Headboard brackets are compatible with most headboards