umbrella stand in pool

Most poolside umbrella bases use water, sand, or a water+sand mix for ballast. Fill capacities vary by model: smaller fillable bases typically provide about 22–44 lb of ballast, while large single bases or multi-plate systems can provide roughly 274–330 lb of combined weight.

These bases support common pole diameters from about 1.26" up to 2.6", and many include adapters for intermediate sizes. Supported umbrella sizes range roughly from 6–10 ft market umbrellas up to large cantilever umbrellas (examples cited include 7.5–11 ft market umbrellas and 13 ft cantilever models).

Movable bases use wheels or casters and often include a retractable or telescopic pull rod for rolling. Typical features are lockable or flip-up wheels and grooved handles: roll the base into position using the handle, then lift or engage the wheel locks to secure it in place.

Many bases include large top inlet spouts for faster filling plus side outlet valves or drain ports for easier emptying. Two-piece designs often provide wide access and quick-drain valves on each plate to reduce mess when filling, draining, or storing.

Empty/base net weights in this group range approximately from 5.5 lb up to 45 lb (examples include 5.5, 6, 12, 13.5, 14.5, 15, and 45 lb). Filled weights depend on model and fill material and span roughly from 22 lb for small bases up to about 330 lb for the largest cantilever-style reservoirs; multi-plate systems with combined totals around 274 lb are also available.