How Thick Should a Concrete Sidewalk Be?

Answer

When using concrete for a sidewalk, patio, or driveway, it should be approximately 3.5 inches. This is also the width of a standard 2'x4' board, commonly used for a form when pouring concrete.
Reference:
Q&A Related to "How Thick Should a Concrete Sidewalk Be?"
Answer It depends on the size of the sections, but generally, no less than 4 inches.
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Most builders pour a 4-inch thick slab for a sidewalk or walkway, which provides a solid surface to support foot traffic and light-wheeled vehicles such as bicycles or hand carts.
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1. Use 12-inch (30. 5 cm) hardboard siding (sometimes called Masonite) ripped down to 6-inch (15 cm) strips in 16-ft. (4.8 meter) lengths. (Full-service lumberyards and home centers
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The volume of the sidewalk is its length times its width times its thickness: V = L * W * T. You know the values for V, L, and W. Plug them into the formula: 480 = 300 * 4 * T. Multiply
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