Because the instructions to build this bed are essentially the same as the plans for the Queen sized (including the bed frame), I will just be providing diagrams on how to build the Heaboard and Footboard in the king size. The 4 integrated drawers give you extra storage space under the bed. Adjustable bed sides allow you to use mattresses of different thicknesses. 17 layer-glued slats adjust to your body weight and increase the suppleness of the mattress. Making Sure Your Bedroom Can Fit a King-size Bed. The Isa bed is a perfect solution with moveable backrests and two integrated floating side tables. Buy Zinus Upholstered Diamond Stitched Platform Bed in Dark Grey, King: Beds – Amazon.com FREE DELIVERY possible on eligible purchases .