US Weight 30 lb Patio Umbrella Base — Black, 18" Diameter, UV-Stable Polymer Shell & Steel Stem

Whether you need a dependable anchor for a dining-table umbrella or a freestanding patio umbrella, this 30 lb base pairs a high-strength concrete core with a UV-stabilized polymer shell for long-lasting outdoor performance. The unit ships with a steel stem that accepts poles from 1.5" to 2" in diameter, measures 18" across, and stands 11.42" tall with the stem installed. Molded handles make repositioning simple so you can adapt your outdoor layout without heavy lifting.

How does this umbrella base hold up in sun, rain, and wind?

The shell is made from UV-stabilized high-density polyethylene that resists cracking, yellowing, and fading in bright sun. A prefilled 30-pound concrete core provides substantial ballast to keep umbrellas anchored during typical breezes and light storms; the steel stem adds sturdiness where the pole meets the base. While engineered for outdoor durability, extreme weather precautions are still recommended.

• UV-stabilized polymer shell protects against sun damage and discoloration.
• 30 lb high-strength concrete core supplies reliable weight and balance.
• Steel stem reduces wobble and secures poles 1.5"–2" in diameter.
• Molded handles allow quick relocation to shelter from severe weather.

Will this fit my umbrella and patio table setup?

The included steel stem accepts standard pole diameters between 1.5" and 2", covering the most common umbrella specifications. The 18" diameter footprint is compact enough to fit under most patio tables while offering a broad enough base to stabilize the umbrella. Check your umbrella pole diameter and table clearance before ordering for a perfect fit.

• Compatible with umbrella poles 1.5"–2" in diameter.
• 18" diameter base fits under most dining tables and patio settings.
• 11.42" total height with stem installed for balanced support.
• Works with both table-installed and some freestanding umbrella configurations.

How easy is it to assemble, move, and maintain?

This model arrives prefilled, so there is no onsite mixing or pouring required—just unpack and position. Assembly is minimal: install the steel stem and insert your umbrella pole, tightening the set screw or locking mechanism as needed. Molded side handles let two people lift and shift the base without straining, and simple care (occasional cleaning and shade during extreme sun) keeps it looking new.

• Prefilled with 30 lb concrete—no assembly or filling needed.
• Quick install: attach stem, tighten, and insert umbrella pole.
• Molded handles for easier lifting and repositioning.
• Low maintenance: wipe clean and avoid prolonged exposure to extreme conditions.

Who is this for? Homeowners and renters who want a durable, no-fuss umbrella base made in the USA—ideal for patio dining areas, backyard lounges, and commercial outdoor seating where reliability and easy relocation are priorities. If you need a prefilled, weather-resistant base that accommodates standard umbrella poles and adds stable support without complicated setup, the US Weight 30 lb Umbrella Base is a practical choice.