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Trying to figure out how much concrete I need?
In the spring I want to build an 84' by 64' pole barn. I will need to pour a floor of 4"-6" thick fiber reinforced concrete but I can't remember the formula to figure out how many cubic yards I will need based on the size and thickness of the floor. I know the concrete plant could figure it for me but I'd like to have the formula for myself anyway. Does anyone know the formula?
Chris, I don't ask questions I already know the answer to! If you can't help then keep your index finger off the key board!
And William, If you would have actually read the whole question, I said that I know I could call the concrete plant and let them figure it, but, I want to have the formula for myself!
Jackasses!
5 Answers
- mustangerLv 78 years agoFavorite Answer
Length x Width x Depth in feet/27. (27 cubic feet to a cubic yard). For a 6" depth it would be 99.555 or 100 cubic yards.
Source(s): Math. - CettomanLv 48 years ago
Calculate as follows:
Floor area = length x width
Volume = area (above) x depth (concrete thickness) 6" = 1/2 ft, 4" = 1/3 ft
Volume (now cubic feet) = cubic feet divided by 27 - cubic yards
84 x 64 x 1/2 / 27 = cubic yards required.
- 8 years ago
Hello rough,
This link is to a good calculator that will also show you the formula
http://www.lowes.com/cd_Concrete+Pad+Calculator_10...
Good luck with your barn.
Tony
Source(s): Wood's Home Maintenance Service http://www.woodshms.com/ http://www.woodshms.com/wp - 8 years ago
this guy is just trying to ask a question he knows to see how many stupid people will answer that formula can be found in any grade school math book
- William BLv 78 years ago
just call the cement company give them the dimensions
they will calculate it,
Source(s): old timer
