Ground screws provide a stable foundation for garden buildings without the need for digging or concrete. The screws are made of galvanized steel to withstand the European climate. They come in various lengths and models, including ones for attaching joists or plates at adjustable angles. The screws provide a long-lasting foundation that is easier and cheaper to install than traditional digging and concrete pouring. Local retailers throughout Europe can help determine the best screws and assist with installation.