{"product_id":"holdfast-kit-cantilever-umbrella-base-weight-100kg","title":"Cantilever Umbrella Base Weight 100kg – 4 Sand-Fill Plates | Holdfast Kit","description":"\u003cp\u003eFour fillable polypropylene plates designed to add distributed ballast around a compatible cantilever umbrella cross base. Wind and changing weather conditions can move or overturn an inadequately installed umbrella, so the umbrella must be assembled and weighted in accordance with its instructions.\u003cspan class=\"PDq2pG_selectionAnchor\" aria-hidden=\"true\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Holdfast Kit adds ballast but does not make an umbrella windproof.\u003c\/p\u003e\n\u003cp\u003eEach plate measures 49x49cm with an 11cm profile. Filled with dry sand, each plate reaches approximately 25kg — four plates positioned around the cross base provide up to approximately 100 kg of distributed ballast when fully filled with dry sand. The plates interlock directly onto the horizontal bars of a standard 100x100cm cross base without any tools: position each plate, fill through the top opening, close the caps. At just 11cm assembled height, the kit sits flat beneath your umbrella, all but invisible at ground level once the canopy is open above it.\u003c\/p\u003e\n\u003cp\u003eWhen all four plates are correctly positioned and fully filled with dry sand, the kit provides up to approximately 100 kg of added ballast distributed around the cross base.\u003c\/p\u003e\n\u003ch2\u003eA modular 100kg ballast system built for cantilever umbrella cross bases\u003c\/h2\u003e\n\u003cp\u003eThe Holdfast Kit is designed for compatible cantilever umbrellas using a 100 x 100 cm cross base. All four plates are identical and are positioned around the cross base to distribute the added weight.\u003cspan class=\"PDq2pG_selectionAnchor\" aria-hidden=\"true\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe polypropylene construction is intended for outdoor use. Its appearance and condition may gradually change depending on sunlight, weather exposure, filling material, use and maintenance.\u003c\/p\u003e\n\u003cp\u003eFill the plates with dry sand in accordance with the supplied instructions. Allow approximately 17 litres or 25 kg of dry sand per plate, and approximately 68 to 70 litres in total, to reach a combined filled weight of up to approximately 100 kg.\u003cspan class=\"PDq2pG_selectionAnchor\" aria-hidden=\"true\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDo not fill this model with water unless the supplied instructions expressly permit it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAssembled: 100 x 100 x 11 cm\u003c\/strong\u003e\u003cbr\u003e100kg total ballast (filled) | 9.45kg empty weight | 70L sand capacity\u003c\/p\u003e\n\u003cp\u003eThe Holdfast Kit is designed for cantilever umbrellas with a compatible 100 x 100 cm cross base. Compare the cross-base dimensions, crossbar layout and available clearance before ordering.\n\u003c\/p\u003e\u003cp\u003eCompatibility does not establish a wind rating or guarantee suitability for every umbrella, surface or location. The umbrella and cross base are not included.\u003c\/p\u003e\n\u003ch2\u003eDisappears in use, stores flat off-season\u003c\/h2\u003e\n\u003cp\u003eAt 11cm assembled height with an anthracite matte finish, the Holdfast Kit sits below the sightline of any outdoor setting and recedes against most paving surfaces — concrete, bluestone, timber decking, terracotta tile. It does its job without drawing attention to itself, which is exactly what a good ballast system should do.\u003c\/p\u003e\n\u003cp\u003eWhen the season ends, the process reverses in minutes: remove the sand, unclip the four plates from the cross base and stack them flat. Four plates nest into a footprint of roughly 50x50x11cm — compact enough for a garage shelf, a garden shed corner or under a bench. Come spring, reassemble and refill. No seasonal storage headaches, no bulky equipment to find space for.\u003c\/p\u003e\n\u003cp\u003eThe kit provides up to approximately 100 kg of added ballast when fully filled with dry sand. The amount and type of ballast required depend on the umbrella instructions, canopy dimensions, installation method, supporting surface and exposure.\u003cspan class=\"PDq2pG_selectionAnchor\" aria-hidden=\"true\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAdditional anchoring may be required in some locations. Close the umbrella during strong or gusty winds and whenever it is left unattended.\u003c\/p\u003e\n\u003ch2\u003eAt a glance\u003c\/h2\u003e\n\u003cp\u003eFour interlocking polypropylene plates, 49x49x11cm each. Assembled dimensions 100x100x11cm. Empty weight 9.45kg, filled weight 100kg, sand capacity 70 litres. Anthracite matte finish, Polypropylene construction intended for outdoor use. Compatible with 100x100cm cross-base cantilever umbrellas. Tool-free assembly. Sand, cross base and umbrella not included.\u003c\/p\u003e","brand":"Shadelys","offers":[{"title":"Anthracite","offer_id":62780398698826,"sku":"847444","price":249.0,"currency_code":"AUD","in_stock":true},{"title":"Brown","offer_id":62780398731594,"sku":"847445","price":249.0,"currency_code":"AUD","in_stock":true},{"title":"White","offer_id":62780398764362,"sku":"847446","price":249.0,"currency_code":"AUD","in_stock":true},{"title":"Light grey","offer_id":62780398797130,"sku":"847447","price":249.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1061\/3522\/4650\/files\/4HoldfastKit_100kgSand-FillBaseWeightforCantileverUmbrellas.webp?v=1784652217","url":"https:\/\/shadelys.com\/products\/holdfast-kit-cantilever-umbrella-base-weight-100kg","provider":"Shadelys","version":"1.0","type":"link"}