Amazing outdoor curtains for pergola is one of the best Ideas outdoor curtains for pergola @ dexetra.org. Another common style of curtains and drapes are tiers. Tiers are called restaurant curtains; they come in several totally different styles to fulfill regarding everyones needs, taste, and style. they are short long and are usually used in kitchens and baths for decorative purposes. Basically, tiers cover the lower half the window using a tension rod and can be beautifully combined with a swag, cornice or top tier for a better, additional decorative look.