FLAME&SHADE Cantilever Umbrella Base 4pcs (256 lb) — 20x20in Fillable HDPE Plates, Heavy-Duty Non-Slip

FLAME&SHADE 4pcs 256lb Cantilever Umbrella Base is a four-piece, fillable set that stabilizes offset (cantilever) umbrellas when filled with water or sand, delivering up to 256 pounds of ballast.

This modular umbrella base is designed for outdoor spaces where a cantilever (aka offset or banana) umbrella needs a low-profile, heavy-duty footing. Each of the four HDPE-plastic plates interlock around a cross-style stand to create a compact, stackable foundation that resists cracking and provides non-slip traction. It’s a simple, affordable way to add weight and stability on patios, decks, poolside areas, balconies, and restaurant terraces without a permanent installation.

How much weight does the base provide and how do I fill it?

This set reaches a maximum ballast of about 256 lbs when all four plates are filled. You can use water for convenience or sand for greater density and better wind resistance.

• Fill method: pour water or dry sand into the fill ports on each 20" x 20" plate.
• Max ballast: approximately 256 lb total when all four plates are filled with sand.
• Storage tip: drain water before moving or storing to reduce weight.

Will this fit my cantilever umbrella and how does it attach?

The plates are made to work with cross-stand cantilever umbrella frames and provide a stable perimeter weight. They sit around the umbrella’s cross legs and secure the base without tools, but always confirm your umbrella’s base dimensions first.

• Compatibility: fits offset/bana na/cantilever umbrellas with a cross-style stand.
• Placement: arrange four plates around the cross base and lock them in position.
• Recommendation: check cross-stand footprint matches 20" plate size for best fit.

How durable and weather-resistant is the material?

Constructed from high-density polyethylene (HDPE), the plates resist cracking and UV damage better than many low-cost plastics. The underside features a non-slip pattern to improve traction on hard and soft surfaces, helping the base stay put during everyday outdoor conditions.

• Material: HDPE plastic rated for outdoor exposure.
• Anti-slip: textured bottom increases grip on patios and pool decks.
• Maintenance: wipe clean with mild soap and rinse; avoid harsh solvents.

How compact is it for storage and transport?

Each plate measures 20" x 20" x 2.4" and stacks to a compact height for off-season storage or transport between locations. The built-in grooves make carrying easier and reduce the space needed when plates are nested together.

• Individual size: 20" by 20" by 2.4" plate dimensions.
• Stacked height: about 10.3" tall when all four plates are nested.
• Mobility: grooves allow easier lifting and temporary repositioning when empty.

Who is this for? This FLAME&SHADE fillable umbrella base set is aimed at homeowners, rental property managers, cafe and restaurant operators, and anyone using an offset or cantilever umbrella who wants a removable, heavy-duty option without permanent fixtures. It’s especially useful where seasonal storage, portability, or rented outdoor space prevents concrete or in-ground anchoring. Note: for extreme wind events, remove or lower your umbrella as a safety precaution.