take your length x width and divide by 81 for a 4" thick slab. Example 24'W X 48'L = 1152 / 81 = 14.22 yards. always order a half yard extra to allow for low spots in grade. its better to have more than run out in the middle of a pour
THE PHCC recommends 24 "
The lower the gauge number, the thicker the steel.
3' wide, about 31'----4' wide, about 24'
type 1
About 24 cubic yards of cement is required for a slab that size.
24"
3.56 Cubic Yards
3.56 yards
Volume = 11.85 Cubic Yards.
11.852 cubic yards
To calculate the weight of a concrete slab measuring 24 x 24 x 2 inches, first determine the volume in cubic inches: 24 x 24 x 2 = 1,152 cubic inches. Since concrete typically weighs about 150 pounds per cubic foot, convert cubic inches to cubic feet (1,152 cubic inches ÷ 1,728 cubic inches per cubic foot = 0.6667 cubic feet). Finally, multiply by the weight of concrete: 0.6667 cubic feet x 150 pounds per cubic foot ≈ 100 pounds. Thus, the slab weighs approximately 100 pounds.
To pour your own concrete slab effectively, follow these steps: Prepare the site by leveling the ground and setting up formwork. Mix the concrete according to the instructions on the bag. Pour the concrete evenly into the formwork. Use a screed to level the concrete surface. Smooth the surface with a float and finish with a trowel. Allow the concrete to cure for at least 24-48 hours before removing the formwork.
If the 6 is meant to be inches (= 1/2 ft.) then: 8 ft. x 24 ft. x 1/2 ft. = 96 cu.ft. concrete.
For a 16' x 24' slab with a depth of 4", you would need a minimum of 4.74 cubic yards.
24 beers in a slab
With a 16' x 7' garage door you can get by with a 20 x 20 slab. 22 x 24 will of course be more comfortable...