Description Specifications Warranty This imposing center post umbrella offers unparalleled strength, durability, and minimalistic design. While offering expansive shade, the Astral opens and closes easily over tables and chairs with only a few simple rotations of the removable crank handle. Perfect for large size outdoor spaces, the Astral is the ideal commercial-grade shade solution for patios, courtyards, and poolside environments. Features Telescoping Mast - Adjustable height for versatile installation. Quick and Effortless Crank Lift System - Opens and closes with ease over tables and chairs. Removable Crank Handle - Convenient and secure when not in use. Modernly Designed Aluminum Hub and Fittings - Built for strength with a clean aesthetic. Commercial Grade Canopy Fasteners - Adds both durability and refined design detail. Galvanized Internal Mast Stem - Long-lasting corrosion resistance. Includes Aluminum Mast Stem Cover - Clean, finished appearance. Includes High Performance Protective Cover - Keeps your umbrella protected when not in use. Vendor Shademaker Type Center Post Umbrella Ribs 8 AST-40S - 13ft Square Shape Square Coverage 172 sq ft Size 13 ft / 4.0 m Open Height 9 ft 1 in / 2.8 m Canopy Length (Diagonal) 18 ft 6 in / 5.6 m Canopy Width 13 ft 1 in / 4.0 m Min. Base Weight 500 lbs AST-50 - 16.5ft Octagon Shape Octagon Coverage 210 sq ft Size 16.5 ft / 5.0 m Open Height 9 ft 1 in / 2.8 m Canopy Length (Diagonal) 16 ft 5 in / 5.0 m Canopy Width 15 ft 2 in / 4.6 m Min. Base Weight 600 lbs AST-50S - 16.5ft Square Shape Square Coverage 266 sq ft Size 16.5 ft / 5.0 m Open Height 9 ft 1 in / 2.8 m Canopy Length (Diagonal) 23 ft 2 in / 7.0 m Canopy Width 16 ft 4 in / 5.0 m Min. Base Weight 700 lbs Shademaker Commercial Umbrella 3 Year Limited Warranty Shademaker warrants this product against defects in materials and workmanship for 3 years from the date of original purchase. This warranty does not cover damage resulting from accident, misuse, abuse, neglect, or normal wear and tear. Fabric fading due to prolonged sun exposure is not covered under warranty.