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Blue Wave 20lb Resin Half Round Umbrella Base NU5420

Free Outdoor Kitchen Design. From design to delivery, we can assist with your project. Learn More

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Need Help? Call 866-412-1555 or chat with us.

The perfect shade anchor solution for small spaces!

This attractive 20-pound Resin Half-Round Umbrella Base from Island Umbrella can hold up to 9-ft half round or square patio umbrellas. This base is designed to be placed up against a wall, window or sliding door where a full umbrella base just won't work. Crafted from impact and weather-resistant blended poly resin, this base won't rust or crack. It features a brown textured corrosion-resistant finish that will never need to be repainted. The rust-resistant, powder-coated stem design has a built in tension knob to firmly secure your umbrella pole in place. Accommodates up to 1.89-in diameter poles. An affordable alternative to more expensive metal base designs!

Features:

  • 20-lb impact and weather-resistant, blended poly resin, half round umbrella base
  • Textured Brown, corrosion-resistant finish
  • 9.85-in metal stem with anchoring tension knob for superior holding strength
  • Stem accommodates umbrella poles up to 1.89-in diameter
  • Recommended for half umbrellas up to 9-ft canopy size
  • For use with half, round or square, patio umbrella
  • Free shipping to the lower 48
  • No sales tax outside California
  • Price match guarantee
  • Free 3D design with every consultation

Buying today

What comes with this order

Limited time Ends at midnight

Take 5% off orders over $1,000

PATIO5

Expires at midnight, September 11. Apply it at checkout.

What delivery actually looks like

  • Curbside freight with a liftgate. The truck unloads at the end of your driveway. The driver is not able to bring it round the back or inside.

  • Moving it from there is on you. Local movers typically charge $400 to $600 for the last stretch. Piano movers and handyman services both do this work regularly.

  • Measure before you order. Check your gate width and side access against the line drawings. It is far cheaper to find a problem now than on delivery day.

  • Inspect before you sign. Count the pallets and note any damage on the delivery receipt before signing. Photograph anything questionable, refuse delivery if there is visible damage, and send us photos within 48 hours.

All orders ship with damage insurance. If something arrives damaged we file the freight claim with the carrier on your behalf and arrange the replacement, so you are not chasing it.

Every consultation includes a free 3D rendering of your kitchen in your actual space.

Warranty and returns

  • Returns30 days on new, unused, unassembled items in the original packaging.
  • RestockingRestocking and return freight may apply on built-to-order items. We will confirm the exact figure before you commit.

Compare the range

How this compares to similar models

The closest alternatives side by side, so you do not have to keep tabs open.

Blue Wave 20lb Resin Half Round Umbrella Base NU5420 compared with similar models
Model This one Blue Wave 20lb Resin Half Round Umbrella Base NU5420 Blue Wave 20lb Resin Half Round Umbrella Base NU5420 Blue Wave 30lb Resin Umbrella Base Weights Set NU6390 Blue Wave 30lb Resin Umbrella Base Weights Set NU6390 Blue Wave 50lb Art Deco Aluminum Umbrella Base NU5407 Blue Wave 50lb Art Deco Aluminum Umbrella Base NU5407 Blue Wave 50lb Classic Cast Iron Umbrella Base in Bronze NU5405A Blue Wave 50lb Classic Cast Iron Umbrella Base in Bronz...
Price $63.28$74.67 $309.29$364.96 $217$256.06 $169.44$199.93
Availability BackorderedIn stockIn stockIn stock
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Not sure which size fits your space? Get a free 3D design

Buying with confidence

Who stands behind this, and how it gets to you

  • Warranty

    Covered by the full Island Umbrella factory warranty, registered in your name.

    Questions? Call 866-412-1555
  • Delivery

    Free shipping to the continental US, with a scheduled freight appointment.

    Product Shipping
  • Returns

    30 days on new, unused, unassembled items in original packaging.

    Read the full return policy
  • Payment

    Monthly payment options are shown at checkout, so a full build does not have to be paid up front.

    Financing options

Questions about warranty or delivery on this unit? Call 866-412-1555

Live Better. Outside.

At BetterPatio, we believe your backyard should feel like home—beautiful, functional, and ready for anything. Whether you're hosting friends, spending time with family, or just unwinding solo, we help you create outdoor spaces that actually feel like you. We handpick only premium, design-forward pieces that are built to last—no filler, no fluff. Just honest quality, trusted brands, and expert support every step of the way.


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866-412-1555

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