The Serta Flat Mattress Foundation is a box spring alternative and provides the perfect support for your Serta mattress, adds 9” in height to your bed and is designed to provide durability and long-lasting comfort. Pairing this bed base with your mattress will support it and extend its life while helping isolate the effect of your partner’s movements in bed. Available in all standard bed foundation sizes: Twin, Twin XL, Full, Queen, King and California King. Serta Low Profile Foundation - Twin38.0"W x 75.0"D x 5.5"H - 28.0 lb Serta Low Profile Foundation - Twin Long38.0"W x 80.0"D x 5.5"H - 28.0 lb Serta Low Profile Foundation - Full53.0"W x 75.0"D x 5.5"H - 36.0 lb Serta Low Profile Foundation - Queen60.0"W x 80.0"D x 5.5"H - 42.0 lb Serta Low Profile Foundation - King38.0"W x 80.0"D x 5.5"H - 62.0 lb Serta Low Profile Foundation - California King36.0"W x 84.0"D x 5.5"H - 62.0 lb Serta Low Profile Foundation - Split King35.0"W x 84.0"D x 5.5"H - 62.0 lb
