Woven Woods Often referred to as woven wood or bamboo shades, natural shade window treatments are crafted of a variety of natural materials such as rattans, bamboos, grasses and reeds. With a relaxed, calming effect, they easily coordinate with decorating styles from sophisticated to contemporary to casual. Whatever your taste, you'll appreciate how they mix with your decor. When lowered, these woven wood shades lie flat; when raised, the woven woods hang in even, overlapping folds.