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Product Details
Twenty-five kilograms of concrete, enclosed in a durable plastic shell, with an iron tube and a tightening knob that locks your umbrella pole firmly in place. The Steadfast Base is a different proposition from a sand-fill ballast system: it arrives ready-weighted, requires no filling, no sand run to the hardware store, and no seasonal emptying. Set it down, insert your umbrella pole, tighten the knob. That's the entire process.
The round base measures 49.5cm in diameter and 32cm in height — a compact footprint that sits cleanly beneath a garden table without dominating the space around it. The iron tube accepts three pole sizes via the included adaptors: 32mm, 35mm and 38mm. The single tightening knob secures the pole firmly once positioned, helping to limit sideways movement without requiring additional tools
At 25kg of pre-set concrete ballast, the Steadfast Base provides a weighted foundation for compatible garden and market umbrellas with 32 mm, 35 mm or 38 mm poles. Black finish, minimal profile, nothing to fill before use.
The Steadfast Base is designed for straight-pole umbrellas with a mast diameter of 32 mm, 35 mm or 38 mm. Three pole adaptors are included. Pole-diameter compatibility does not by itself confirm that the base is sufficiently weighted for a particular umbrella. Check the umbrella's minimum base-weight or anchoring requirements before use.
The tightening knob on the iron tube allows you to adjust and lock the pole position precisely, helping to hold a compatible umbrella pole securely in position. This is particularly useful when repositioning the umbrella through the day to track the sun.
Base: Ø 49.5 cm × 32 cm H
Weight: 25kg | Compatible pole diameters: 32 / 35 / 38mm
The Steadfast Base accepts straight-pole umbrellas with a mast diameter of 32 mm, 35 mm or 38 mm. It is not suitable for cantilever umbrellas or poles above 38 mm in diameter. Check the umbrella's minimum base-weight requirement before installation. For cantilever umbrella ballast, see the Holdfast Kit.
The key practical difference between the Steadfast Base and a sand-fill ballast system is convenience: the concrete is already in there. There is no trip to the hardware store for sand bags, no filling sequence to follow, no waiting. For outdoor spaces where simplicity matters - a courtyard, garden patio or alfresco area — a pre-weighted base that is ready to use straight out of the box has a clear advantage.
The trade-off is portability: at 25kg, the Steadfast Base is manageable for repositioning but is not designed to be packed down or stored flat like a modular plate system. It is a permanent fixture of your outdoor setup, which for most garden and alfresco applications is exactly what you want.
Round base 49.5cm diameter, 32cm height. Pre-weighted at 25kg, concrete-filled plastic shell, iron tube. Fits pole diameters of 32mm, 35mm and 38mm — three adaptors included. Single tightening knob. Black finish. Assembly required. Not compatible with poles above 38mm or cantilever umbrella cross bases. For cantilever umbrella ballast, see the Holdfast Kit.
Specifications, Assembly & Care
Technical Specifications
Base Type
Concrete-filled umbrella base
Base Material
Plastic shell with concrete filling
Tube Material
Iron
Compatible Pole Diameters
32 mm, 35 mm and 38 mm
Securing Mechanism
Single tightening knob
Pole Adaptors Included
3 pole adaptors included
Base Dimensions
49.5 cm diameter × 32 cm high
Tube Dimensions
5 cm diameter × 24.5 cm high
Product Weight
25 kg
Assembly & Warranty
Assembly required - 2-year warranty
Installation and Maintenance
The umbrella base can be installed without tools in under five minutes. Place the 25 kg base in its intended position on a flat, stable surface such as a patio, paved area or tiled floor. Select the supplied adapter that matches the diameter of your umbrella pole and insert it into the central holder. Slide the pole into position, then tighten the adjustment knob by hand until it is held securely.
The powder-coated steel surface requires minimal maintenance. Wipe the base occasionally with a soft, damp cloth to remove dust and outdoor residue, then dry it thoroughly. Avoid abrasive cleaners that may damage the finish. During extended periods of non-use, store the base in a dry, sheltered location where possible. As it weighs 25 kg, choose its position carefully before installation or ask for assistance when moving it.
Delivery, Returns and Warranty
Delivery:
Each order is prepared and dispatched by our team within 24 to 48 hours (excluding weekends and public holidays). Delivery then takes 4 to 6 business days, depending on your location and the delivery method selected.
The estimated total delivery time is therefore 5 to 8 business days.
Returns:
You have 30 days from receipt to return your order to us. It must be in perfect condition, unused and in its original packaging. For more information, please see our Return and Refund Policy.
Warranty:
2-year warranty included.
Frequently Asked Questions
Which umbrella poles is this base compatible with?
The base includes three adapters for umbrella poles measuring 32 mm, 35 mm or 38 mm in diameter. Check your umbrella’s pole diameter before ordering.
Is the base supplied ready to use?
Yes. The plastic shell is already filled with concrete, giving the base a total weight of approximately 25 kg. No sand, water or additional filling is required.
Is this base suitable for cantilever umbrellas?
No. This base is designed for centre-pole market umbrellas. Cantilever umbrellas generally require a compatible cross base, ballast plates or another base system specifically designed for offset umbrellas.
How is the umbrella secured in the base?
Select the adapter that matches the pole diameter, insert the umbrella pole into the central tube and tighten the side knob by hand until the pole is held securely.
Need Help Choosing?
Our team is available from Monday to Friday, 9am to 6pm (excluding weekends and public holidays).
Email: info@shadelys.com
Phone: +61 2 5119 4874
2-Year Warranty
Included with every product
Clear Delivery Information
Estimated delivery timeframes shown before purchase
Secure Checkout
Payments processed securely
Customer Support
Help before and after your purchase
THE ART OF STABILITY
A Solid Base for Everyday Shade
25 kg powder-coated steel base with a UV-resistant finish, three pole adapters included and a 2-year warranty.
Need help?
Our team is available to assist you Monday to Friday, 9 am to 6 pm (excluding weekends and public holidays).
Frequently Asked Questions
What is included with the umbrella base?
The product includes one 25 kg concrete-filled umbrella base, a central iron tube, one manual tightening knob and three pole adapters for 32 mm, 35 mm and 38 mm umbrella poles. The umbrella itself is not included.
Which umbrellas can be used with this base?
This base is intended for centre-pole market umbrellas with a pole diameter of 32 mm, 35 mm or 38 mm. Compatibility also depends on the size and weight of the umbrella, so check any minimum base-weight recommendation provided with your umbrella.
Does the base need to be filled with sand or water?
No. The plastic shell is permanently filled with concrete and is supplied ready to use. It should not be opened or filled with additional material.
How do I install the umbrella in the base?
Place the base on a flat, stable surface. Select the adapter that corresponds to the diameter of the umbrella pole and insert it into the central tube. Slide the pole into position, then tighten the side knob by hand until it is held securely.
Can this base be used beneath an outdoor table?
It may be used beneath a compatible outdoor table, provided the table has sufficient clearance and a centre opening large enough for the base tube and umbrella pole. Check the table-hole diameter and available space beneath the table before ordering.
Is a 25 kg base suitable for every market umbrella?
Not necessarily. The appropriate base weight depends on the canopy size, umbrella height, construction and intended location. Larger umbrellas may require a heavier base. Always follow any minimum base-weight guidance supplied with the umbrella.
How long does delivery take?
All orders are prepared and dispatched within 24 to 48 hours by our team (excluding weekends and public holidays). Our delivery times are between 4 and 6 business days. The estimated total delivery time is 5 to 8 business days.
What payment methods do you accept?
We accept secure payments via Afterpay, PayPal, Apple Pay and credit cards: Visa, Mastercard, Maestro and American Express. All transactions are encrypted and secured through our payment partner to ensure your data is protected
What should I do if my order arrives damaged, incomplete or incorrect?
If your order arrives damaged, incomplete or incorrect, please contact our customer service team and include clear photos of the issue. We will review your request and assist you in accordance with our return and refund policy.
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