Premier Flex Platform Bed Frame with Adjustable Lumbar Support: * Holds up to 1200 lbs of static weight and 300 lbs of dynamic weight * Easy assembly * Firm to plush customized support * Double slats in the lumbar rows * Mattress sold separately * Arrives in 1 box * Assembly is required * 1-year warranty * Box spring not required * Twin size bed (assembled): 74"L x 38"W x 14"H * Full size bed (assembled): 74"L x 53"W x 14"H * Queen size bed (assembled): 79"L x 59"W x 14"H * King size bed (assembled): 79"L x 75"W x 14"H * California King size bed (assembled): 83"L x 71"W x 14"H * Mattresses sold separately. See our assortment of mattresses.