They support a range of pole diameters—commonly 1.3", 1.5", 1.9" and 2.2". Several bases advertise compatibility with 1.5"–1.9" poles and often include adapters to fit multiple diameters.
Poles are usually secured with hand-tightening knobs or screws. Many bases include adapters/couplers and internal stabilizers so a single base can fit and hold multiple pole diameters firmly.
Sizes vary by model; common base widths are about 17.5–21.5 inches and heights about 10.5–16.1 inches. Always check the product listing for exact measurements to ensure fit and stability with your umbrella.
Many listings include the base only (umbrella sold separately). Some models add accessories such as adapters/couplers, wheels, and a user manual—check the product description to see exactly what’s included.
Many bases are described as weather-, rust-, or fade-resistant, and some specify UV-protective HDPE construction for outdoor durability. Review the listed materials and any weatherproofing claims to judge long-term suitability for your climate.
