A French doorway[24] has two rows of upright rectangular glass panes (lights) extending its total length; and two of those doorways on an exterior wall and with out a mullion separating them, that open up outward with opposing hinges to some terrace or porch, are referred to as a French https://repostyou.com/comprehensive-guide-to-cleaning-equipment-window-cleaning-pressure-washing-water-fed-pole-systems-soft-washing-and-solar-panel-cleaning/