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Calculate the amount of concrete needed for a foundation that is 26 ft wide by 30 ft long with a height of 6 ft and a thickness of 15 inches Please explain?
Wiki User
∙ 14y ago
27 cubic feet = 1 cubic yard.
15 inches = 1.25 ft
What you have is a concrete wall surrounding the base area. If its 4 sides were all lined up straight, they
would stretch (26 + 30 + 26 + 30) = 112 feet, end to end. That's the distance around the foundation.
So you have to build this slab that's 112-ft long, 6-ft high, and 1.25-ft thick.
Its volume is (112 x 6 x 1.25) = 840 cubic ft.
840 cubic ft = (840 / 27) = 31.111 cubic yards(rounded, repeating). Actually [31 and 1/9th] yd3
Wiki User
∙ 14y ago
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