Choosing the Right Concrete Grade for a Garden Foundation

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When figuring out the right concrete grade for a garden foundation, think about weight loads and local climate. A standard 1:2:3 mix (C20 or Gen 3) works well for most sheds and patios, but if you're parking a vehicle or building a workshop, step up to C25 or C30 to avoid cracking. The key is matching the strength to the actual use—not every project needs high-grade concrete, and going overboard just wastes money.