Stable Design: Crossed post and beam construction, the four 6.7 x 6.7 inches wide aluminum feet with pre-drilled holes can help the Retractable Pergola stand stably on ground surfaces Upgraded Fabrics: The Outdoor Pergola is made of improved yarn-dyed fabric, more durable, UV resistant and fade resistant 5 Crossbeams: PURPLE LEAF rattan stand is made of aluminum frame with anti-rust treatment, durable and stable support Retractable Pergola: The 10' X 10' White Pergola allows you to adjust the amount of sunlight with ease by sliding its convertible roof For Installation: Recommending to use 1/4-inch expansion screws for mounting on wooden floors, concrete 3 inches deep or more, and concrete footings measuring (recommended over 50 lbs. per footing) 15x15x15 inches A pergola adds a stylish touch to your garden and could be the best addition you make to your outdoor living space. Whether entertaining friends or just relaxing with family, having the perfect occasion is a must. Whether you’re going for a nostalgic appeal or want simple, good-looking never disappoint.