Cal-King and E-King comes in pair.
FL comment: Use for platform bed or those bed that use just mattress. King bunkie board comes in two pieces. Length and width of all sizes are standard and should fit any mattress according to size. Bunkie board can be use if you have at lease 3 slats on the existence bed. Effective Dec 30th, 2015, $11 mattress recycling fee will applies for each mattress or foundation purchase through our store regardless of where customer reside.