The concession window with bar / counter are standard features on all of our Poolside Pool Houses. Our 8' long and 3' high opening is actually 3 windows that can be easily removed. Windows are tempered glass with screens that slide vertically to allow for ventilation, and can be removed or re-installed within seconds. When not in use, the counter swings to the inside of the Poolside Pool house, and the windows installed. When the party starts, in less than a minute, the windows can be removed, and the bar/counter deployed.