Which window treatment style involves pleats and is commonly used in formal settings?

The style that features pleats and is frequently found in formal settings is pinch pleat. This style is characterized by spaced, stitched folds that create a structured and elegant appearance, making it ideal for more sophisticated interior designs. The pleats allow the fabric to pull back gracefully when the window treatment is open, adding to the overall aesthetics of the room while also providing functionality. The formal nature of pinch pleat treatments is enhanced by their traditional tailoring and the rich folds of fabric, which can bring depth and detail to windows.

In contrast, other styles such as rod pocket, tab top, and grommet tend to have a more casual or modern look. Rod pocket treatments often have a gathered appearance but lack the tailored pleating of pinch pleats, making them less formal. Tab top styles are characterized by exposed fabric loops, which can create a playful look, while grommet styles feature metal rings that deliver a contemporary vibe rather than the classic elegance associated with pinch pleats.