Our 4-Piece Patio Umbrella Base provides secure, heavy-duty support for your offset (cantilever) patio umbrella. Designed to fit a standard cross-bar base, the four interlocking plates form a solid rectangular foundation. Constructed from durable, weather-resistant HDPE plastic, each plate features a fill spout with a tight-sealing cap. Customise the weight by filling with sand, water, or a mix for up to 68 kg of total ballast, ensuring exceptional stability for 2.7–3 m umbrellas in windy conditions. Ideal for patios, poolside areas and decks.