We store ours on the top of the sliding hatch. Bottom board first then top board with lock up. Place a towel etc. on top so as not to scratch the underside of your dodger window. I placed four little plastic glides on both boards to keep them from scratching each other and make it easier to lift. This also keeps them from sliding. We also, when at anchor or dock and want to keep bugs out, air in, will tuck the towel under the front edge of the boards and drape it back over the open companionway.
Bob