At my lake house I have an outbuilding of sorts (we call it the cabana) where one side is completely open with a great view of the water front. I want to screen in this side of the building to keep the bugs out this summer. I plan on building a series of simple screen panels with poplar frames and domino joinery. The panels will be 37” wide by 72” high. My question is do you think a panel this size would require a horizontal rail in addition to the top and bottom rails. Either 1/3 way from the top or bottom? My preference would be to have no additional rails as it will slightly obstruct the view of the lake when sitting in my lounge chair enjoying a cocktail. I guess I could just build one and see how rigid it is but thought I would ask here first.