The Flexpatio Privacy Shutter Walls 20' Side add-on offers adjustable louvers to control shade, light and airflow while increasing privacy for your pergola area. Louvers operate from 0–180° to give you flexibility in directing sunlight and ventilation throughout the day. Made from all-aluminum, the panels are rust-resistant and fade-resistant for reliable outdoor performance with minimal upkeep. This 20' Side panel is designed to integrate seamlessly with Flexpatio pergola systems to extend coverage and privacy where needed.