You’ll Really need to know how big the curtains have to be (Understand that the curtains will probably be for a longer period as opposed to windows if you need to provide the illusion of getting additional vertical Room), you’ll will need to learn how many windows require dressing, therefore https://www.google.com/maps/place/Design+Blind+%26+Drapery+Service,+Inc/@27.631052,-80.3972185,13z/data=!4m6!3m5!1s0x6ac62ffb21a96c69:0x21efecd38443e563!8m2!3d27.631052!4d-80.3972185!16s%2Fg%2F11y3162xfd?hl=en&entry=ttu