15FT Double-Sided Outdoor Patio Umbrella - Large, Durable & Solar-Powered This large umbrella for patio measures 15 x 9 ft, offering 133 sq ft of shade-perfect for 4-6 person patio dining sets. Its double-sided design ensures full coverage for ultimate outdoor comfort. Built with a 1.9" powder-coated steel pole and 12 fiberglass ribs, this heavy-duty patio umbrella is rust-resistant and long-lasting. The individually replaceable ribs add convenience and durability.