Heavy Duty Square Umbrella Base for Offset
Keep your umbrella standing strong, even on windy days
There's nothing worse than watching your patio umbrella tip over in the breeze, or worse, blow across the yard. This heavy-duty square umbrella base solves that problem once and for all. Designed specifically for offset and cantilever umbrellas, it holds up to 143 lbs when filled, providing rock-solid stability so you can relax and enjoy your outdoor space with confidence.
Why this umbrella base is essential:
- Maximum stability – Holds up to 143 lbs with sand or 130 lbs with water for superior wind resistance
- Perfect for offset umbrellas – Designed specifically for cantilever and offset umbrella cross bases
- Easy fill & drain – Convenient spout for filling, drain hole for emptying when needed
- Built-in handles – Two integrated handles make moving and positioning effortless
- Weather-resistant construction – Durable HDPE plastic won't crack, fade, or deteriorate outdoors
- Generous size – 26.8" square footprint provides excellent support and stability
The foundation your umbrella needs:
Your beautiful offset umbrella deserves a base that can handle its unique weight distribution. Unlike standard center-pole umbrellas, cantilever umbrellas need extra stability because of their overhanging design. This square base is engineered specifically for that purpose, with a wide footprint and heavy capacity that keeps everything secure, even when the umbrella is fully extended.
Perfect for:
- Offset and cantilever patio umbrellas
- Poolside shade umbrellas
- Deck and patio entertaining areas
- Garden and outdoor seating zones
- Commercial outdoor spaces
- Windy locations that need extra stability
Smart design features:
- Dual filling options – Use sand for maximum weight (143 lbs) or water for easier handling (130 lbs)
- Easy-access fill spout – Large opening makes filling quick and mess-free
- Convenient drain hole – Empty water easily when you need to move or store the base
- Integrated handles – Lift and reposition even when partially filled
- Cross base compatibility — Fits offset umbrella cross bases with 2.4" pole diameter
- Low-profile design — Only 5.1" tall, won't interfere with foot traffic
Durable outdoor construction:
Made from high-density polyethylene (HDPE) plastic that's built to withstand sun, rain, chlorine, and temperature extremes. The material is recyclable, anti-aging, and won't rust like metal bases or crack like cheaper plastics. The neutral brown color blends naturally with outdoor settings and won't show dirt or wear.
How to use:
- Position the base where you want your umbrella
- Fill with sand (for maximum stability) or water (for easier seasonal changes)
- Secure your offset umbrella's cross base to the mounting plate
- Enjoy worry-free shade all season long
Filling recommendations:
- Sand fill (143 lbs): Best for permanent installations and maximum wind resistance
- Water fill (130 lbs): Ideal if you need to drain and move the base seasonally
- Combination: Start with water for easier positioning, then top with sand for extra weight
Specifications:
Dimensions: 26.8" L × 26.8" W × 5.1" H
Weight when filled: Up to 143 lbs (sand) or 130 lbs (water)
Pole compatibility: 2.4" diameter (fits offset umbrella cross bases)
Material: Heavy-duty HDPE plastic with metal hardware
Color: Brown
Cross base mounting: 22" L × 22" W bottom cross
Screw hole spacing: 5.1" diagonal
What's Included:
- 1 square umbrella base
- Mounting hardware
- Assembly and filling instructions
Assembly & Setup:
Simple assembly required. Attach mounting hardware, position base, fill with sand or water, and secure your umbrella's cross base. Complete instructions included.
Stop worrying about your umbrella tipping over and start enjoying your outdoor space with confidence. This heavy-duty base provides the stability and peace of mind you need, so the only thing moving in the breeze is the shade above you.
Note: Sand or water not included. Umbrella sold separately.