I'm extending my deck to slightly wrap around my 24' AG. Are there any companies that make make retractable gates at 40-42" high that would span 8-10 linear feet from deck post to deck post? The deck surface is composite deck boards (like Trex). I've found a lot of retractable fences for inground pool that utilize metal column drilled into the concrete surround. Ideally, I'd like to find a gate product that would retract into itself when open. Thx.