We’re tossing around the idea of building a 20X20 metal building to shoot from and the entire build is being built around the idea of being able to shoot from a heated and cooled environment. Has anyone done this before and if so what are some must haves and any do’s and dont‘s? My idea was to build the shooting side with two 6’ wide glass garage doors for better visibility and on nice days we could just open it up with 2 windows in the center with each having a bench to shoot from through them with an overhang/porch on that side that extends out another 15 feet or so for a sun shade. If anyone has any first hand knowledge of something like this I’d appreciate some insight.