Siena Cantilever Umbrella 3m Square - Sunbrella Acrylic

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As low as $2,249.10 Regular Price $2,499.00
In stock

Siena is a revolutionary new addition to our cantilever range. It features a gas lift that makes opening and closing a simple and effortless process, with no ropes, pulleys, or winders. The track locks the canopy in both the open and closed positions.


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The newest addition to the Shelta Cantilever range, the Siena is sleek and classy featuring an Acrylic canopy with UPF50+ UV protection.

A simple lever action allows rotation through 360°, in 10 fixed positions. The Siena includes a 210gsm PU coated Polyester protection cover for added protection from the elements when the umbrella is not in use.

*Please note: This umbrella does not have a tilt function.


  • Gas lift opening system
  • Sunbrella Acrylic canopy UPF50+
  • 98% UV Protection
  • 360 degree rotation with 10 fixed positions
  • Multiple base options
  • Silver anodised aluminium frame
  • Includes Bolt Down Base
  • Optional extra Inground Base or Resin Base
  • Polyester protection cover included


The Siena comes in one shape and size which is 3m Square.


The Siena is made using premium quality Sunbrella Acrylic fabric. Sunbrella is widely regarded as the best outdoor awning and umbrella fabric in the industry. Features include:

  • A soft and very flexible finish
  • UPF 50+ Protection
  • Highly water-resistant
  • 5 Year fade-resistant warranty


Siena Acrylic Black Fabric Swatch
Black White Beacon Ash Canvas Coal


The Siena features an anodised aluminium frame. The mast is 108x68mm oval shape.


(A) Dimensions (mm) 3000
(B) Mast Height 2710
(C) Under Edge Clearance 2140
Area (m2) 9



The Siena comes with a range of options for installation. 

  • The bolt down baseplate can be secured to a concrete slab. It requires 4 M10 anchor bolts which can be supplied by Shade Australia as an optional extra (we recommend and supply Hilti Anchor bolts for their ease of use and strength). 
  • An optional Resin Base. The Resin Base is required to be filled with ballast before use. We recommend using sand or blue metal (not water).
  • An inground base option made especially for the Siena umbrella. This is a galvanised in-ground base that is set into a footing around 450mm dia by 800mm deep depending on the soil type.




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We generally hold stock of this item at our Ingleburn warehouse but if you need it urgently or are planning to visit us to pick it up, it’s best you contact us so we can ensure that we meet your requirements. If we don’t have the stock on hand we can usually get it in quite quickly.

As this item is quite bulky, you may be required to assist in unloading the item from the delivery truck. If this is a requirement for your area, someone from Shade Australia will be in touch to organise a day that suits you best. If you are not at home on the scheduled day of delivery your item WILL NOT be left at your premises. This may incur redelivery fees.

If you have any questions regarding delivery, please do not hesitate to call us on 1800 155 233 for more information.

We ship this product Australia wide with reliable couriers such as TNT. 

Once we dispatch an order, we will email you the tracking number.  This allows you to track your delivery so you know when it is going to be delivered.

We do our best to ensure your order is packaged securely and arrives safely.

PLEASE NOTE: This item cannot be shipped to a PO Box or Parcel Locker.

The Siena comes with a 2 year warranty on the frame and a 5 year fade resistant warranty on the fabric.

Warranty is on workmanship. It does not cover umbrellas which are damaged due to wind.

Please note, the standard polyester protection cover provided with the umbrella does not have a warranty. The upgraded O'Bravia cantilever protection cover has a 3 year fade resistant warranty and a 12 month warranty on workmanship.

Why is this umbrella more expensive than other Shelta cantilever umbrellas?

The Siena is a large, heavy-duty cantilever umbrella. The things which add to its cost include the very strong frame on which the umbrella is built and the premium quality Sunbrella acrylic canvas which is used to make the canopy.

Can I install this umbrella myself?

Sure, the umbrella comes fully assembled ready for installation. If you’re bolting the umbrella down to a concrete slab, you need to drill 4 holes and use masonry anchors (not supplied) to bolt it down. If you’re planning to install it into a grassed area, you need to dig a hole and concrete an in-ground base (optional extra) into the ground. Once this is done it takes a couple of strong people to lift the umbrella from its box and slide it over the spigot ready for use. 

Do I need any other bits and pieces to install it?

Yes. If you’re bolting down to a concrete slab, we recommend you purchase some anchor bolts from us when you purchase your umbrella. If your installing in-ground, you need to purchase the in-ground socket in addition to the umbrella itself. 

Can I leave this umbrella up all the time?

We recommend that you collapse the umbrella when not using it. Although it is a strong umbrella and is tolerant of windy conditions, it is always a good idea to fold it away when unattended or not in use.

What accessories do you recommend I purchase with this umbrella?

The anchor bolts for sure. Also, the umbrella does come with a protection cover but it’s relatively lightweight and only warranted for 12 months. If you really want to give your new umbrella the best possible protection we recommend you purchase a Large O'Bravia cantilever protection cover. This will fit neatly on your new umbrella and give it the best possible protection. 

A LED light is also a handy accessory to purchase.  It simply clips onto a central drop-down arm. 

Can I get the Siena in other colours?

There is only one frame colour and four canopy colour options. If you are seeking a different frame and/or coloured canopy, look at the Sidepost Classic or the Queenslander cantilever umbrella, both of which are available in a wide range of colour combinations.