2400 sq. ft. Divided by 3 (1/3 ft thick) = 800 cu ft
800 / 27 (27 cu ft per cu yd) = 29.63 cu yds
Order 31 to 33 yds depending on how accurate your 4" are.
Dan
2.15
14.81 yds
you can do the math: LXWXD DIVIDED BY 27
625 times 0.5 = 312.5 cubic feet will be needed
how many cubic feet in a yard of concret
2.15
14.81 yds
you can do the math: LXWXD DIVIDED BY 27
625 times 0.5 = 312.5 cubic feet will be needed
how many cubic feet in a yard of concret
A 9x9 foot slab 4 inches thick requires a minimum of 1 cubic yard. If you go to 6 inches thick you will need 1.5 cubic yards.
A cubic yard is 46,656 cubic inches. Spread to a thicknes of 5 inches, a cubic yard of concrete covers 9332.1 square inches, which is 64.8 square feet.
About 162sf.
81
Allow 5.5 to 6 yards. Always allow for wastage, underrunning forms, etc.
go to any search. and type in concrete calculater
1000 square feet/9 = 111.1 square yards of concrete 6 inches thick. This is the same as 111.1/4.5 = 24.7 cubic yards of concrete.