A 12 foot by 12 foot slab would be 3.5 inches thick. It would total 1.555555 yards mathematically. It is recommended to add 5% error to the mix and round up to the nearest half yard. If you order this then order 2 yards and expect overage.
2
15 cubic yards
7.1
You will need a minimum of 39.51 Cubic Yards.
Okay first dont go 3 inches thick ... it will crack it's to thin 3.5 " to 4" thick is the min. and it'll take 2.777 yards so you'll have to get 3 yards
3.70 yards and you will order 4 yards to have enough. (30 x 10 x 1/3) = 100 cubic feet Divided by 27 = 3.704 cubic yards
15 cubic yards
15 cubic yards
7.1
You will need a minimum of 39.51 Cubic Yards.
Okay first dont go 3 inches thick ... it will crack it's to thin 3.5 " to 4" thick is the min. and it'll take 2.777 yards so you'll have to get 3 yards
3.70 yards and you will order 4 yards to have enough. (30 x 10 x 1/3) = 100 cubic feet Divided by 27 = 3.704 cubic yards
5 yds - One yard of concrete will cover approximately 81 square feet 4" deep.
If it is 4 inches deep/thick, 2 cubic yards. If it is 6 inches deep/thick, 3 cubic yards.
Depends on size and thickness. You take length x Width x Thickness= Then Divide by 27. That will give you How many yards of concrete you need. Then you need to call your local concrete company and get a price per yard. Multiply your yards with price and the you have your price Just for your concrete. Now as far as having somebody to the whole process for you i would call around and get as many estimates as possible to compare prices.
How deep? 1 inch will take .7 yards
About 3.
27 cubic feet = 1 cubic yard3 inches = 1/4 footVolume = (34) x (63) x (1/4) = 535.5 cubic feet = 195/6cubic yards