Our 7 inch heavy duty Semi-Flex
Cal King mattress box is comprised of a unique grid assembly providing a firmer, more durable surface.
Cal King Semi-Flex mattress box is designed with the best components to support all types of mattresses:
Cal King mattress box unit will provide even support and durability to your Cal King mattresses for a comfortable night's sleep.
Additional mattress box springs sizes include:
Twin, Full, Queen, King and 9 inch Cal King.
We also carry a selection of Cal King low profile box springs and Cal King bunkie boards for you to choose from.
Mattress Liquidation is located in Rancho Cucamonga, just outside the greater San Bernardino, Los Angeles, and Riverside area.
*Due to inventory fluctuation, availability and prices are subject to change at anytime.*