WebCelcon Foundation Blocks. Available in Standard Grade (3.6N/mm 2) and High Strength Grade (7.3N/mm 2 ). Foundation Blocks can be used to support 3 storey constructions. They are suitable for the support of solid or cavity walls, framed construction or suspended floors, including beam and block. Web1809.4 Depth and Width of Footings. The minimum depth of footings below the undisturbed ground surface shall be 12 inches (305 mm). Where applicable, the requirements of …
Foundation Construction [PDF]: Depth, Width, Layout, and Excavation
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how wide are extension footings - MyBuilder
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