To calculate the number of 80-pound bags of Sandkrete needed for a 15 x 15 slab that is 4 inches thick, first determine the volume of the slab in cubic feet. The volume is calculated as: ( 15 , \text{ft} \times 15 , \text{ft} \times \frac{4}{12} , \text{ft} = 75 , \text{cubic feet} ). An 80-pound bag of concrete typically covers about 0.6 cubic feet, so you would need approximately ( \frac{75}{0.6} \approx 125 ) bags.
If your talking about 4'x4'x4" thick it will take about 12 bags. Most 60# bags will do .45 cubic feet and that slab would be about 5.3 cubic feet wich equals 11.77 bags.. Mike
To calculate the amount of Quikrete needed for a 4' x 6' slab that is 4 inches thick, first convert the dimensions to feet: the thickness is 4 inches, which is 1/3 of a foot. The volume is then calculated as 4' x 6' x (1/3)' = 8 cubic feet. Quikrete typically comes in 60-pound or 80-pound bags, with 60-pound bags covering about 0.45 cubic feet and 80-pound bags covering about 0.6 cubic feet. Therefore, you would need approximately 18 bags of 60-pound Quikrete or 14 bags of 80-pound Quikrete to complete the slab.
U need 1.63 80lb bags per square ft so 131bags to do 8ft by 8ft
To calculate the number of 80-pound bags of concrete needed for a 2x2 slab that is 6 inches thick, first determine the volume of the slab. The volume is 2 feet x 2 feet x 0.5 feet (6 inches) = 2 cubic feet. An 80-pound bag of concrete typically yields about 0.6 cubic feet. Therefore, you would need approximately 4 bags (2 cubic feet ÷ 0.6 cubic feet per bag = about 3.33 bags, rounded up to 4).
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If your talking about 4'x4'x4" thick it will take about 12 bags. Most 60# bags will do .45 cubic feet and that slab would be about 5.3 cubic feet wich equals 11.77 bags.. Mike
To calculate the amount of Quikrete needed for a 4' x 6' slab that is 4 inches thick, first convert the dimensions to feet: the thickness is 4 inches, which is 1/3 of a foot. The volume is then calculated as 4' x 6' x (1/3)' = 8 cubic feet. Quikrete typically comes in 60-pound or 80-pound bags, with 60-pound bags covering about 0.45 cubic feet and 80-pound bags covering about 0.6 cubic feet. Therefore, you would need approximately 18 bags of 60-pound Quikrete or 14 bags of 80-pound Quikrete to complete the slab.
some bags are not thick enough,although there are lots of bags there are strong and thick
are bags strong and thick enough to reuse
U need 1.63 80lb bags per square ft so 131bags to do 8ft by 8ft
There are about 2.3 7-ounce bags in one pound.
are bags strong and thick enough to reuse
To calculate the number of 80-pound bags of concrete needed for a 2x2 slab that is 6 inches thick, first determine the volume of the slab. The volume is 2 feet x 2 feet x 0.5 feet (6 inches) = 2 cubic feet. An 80-pound bag of concrete typically yields about 0.6 cubic feet. Therefore, you would need approximately 4 bags (2 cubic feet ÷ 0.6 cubic feet per bag = about 3.33 bags, rounded up to 4).
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120 50-pound bags.
how many bags of cement for a pad 4x7x4 inches thick
24 3-pound bags(72 pounds) and 10 5-pound bags(50 pounds). 72+50 = 122 pounds, 24+10 bags = 34 bags.