To calculate the number of 80-pound bags of ready-mix concrete needed for a 22 square foot area at 4 inches deep, first, determine the volume in cubic feet. The volume is 22 sq ft × (4/12) ft = 7.33 cubic feet. An 80-pound bag of concrete typically yields about 0.6 cubic feet. Therefore, you would need approximately 12-13 bags (7.33 / 0.6 ≈ 12.22).
You would need 31, 80 pound bags to cover 1 cubic yard at 4 inches deep. If you would like the depth to be 6 inches, 45 bags would be needed.
how deep?
To determine how many bags of mulch you need for a 16 square foot area, you first need to decide on the desired depth of the mulch. For example, if you want a 2-inch depth, you'll need about 2 cubic feet of mulch per square foot (since there are 12 inches in a foot, 2 inches is 1/6 of a foot). For a 16 square foot area at 2 inches deep, you would need approximately 32 cubic feet of mulch. Since each bag is 0.8 cubic feet, you would need 32 / 0.8 = 40 bags of mulch.
To calculate the number of 80-pound bags of Quikrete needed, first determine the volume of the slab in cubic feet. The volume of a slab that is 4 inches deep, 4 feet wide, and 7 feet long is 4/12 (0.33 feet) x 4 feet x 7 feet = approximately 9.33 cubic feet. Quikrete typically covers about 0.6 cubic feet per 80-pound bag, so you would need about 16 bags (9.33 cubic feet ÷ 0.6 cubic feet per bag = 15.55 bags, rounded up to 16).
2.2222222201902215 cubic yards
You would need 31, 80 pound bags to cover 1 cubic yard at 4 inches deep. If you would like the depth to be 6 inches, 45 bags would be needed.
4.4 bags for each 1-foot deep. 2.2 bags for each 6-inches deep. Each 5-ft3 bag will cover the area to 2.72 inches deep.
16 bags for every 3 inches deep
40 pounds of topsoil is about 2 cubic feet, which will cover an area of 12 square feet at 2 inches deep.600 square feet divided by 12 square feet per bag is 50 bags.Answer50 bags
The volume of sand weighs 455x 2/12 *100 pounds per cubic foot = 7600 pounds so you need about 152 bags.
3 inches = 1/4 footVolume = 82 x 1/4 = 20.5 cubic feetIf you're buying 5-cubic-foot bags, then these are your choices:-- Buy 4 bags, and leave the job 2.5% incomplete. (Cover is only 2.93" deep, not 3".)-- Buy 5 bags, and use only 10% of the 5th one.-- Spread all 5 bags, and wind up with the 82 square feet covered 3.66 inches deep.
We would have to know how deep you want it. I would start with 6 x 80 pound bags.
capacity of a box 5 inches square and 2 inches deep = 5 X 5 X 2 =50 inches ^ 3
ABOUT 43 bags. Dry sand weighs ABOUT 100 lbs per cubic foot- and you need 21.3 cubic feet.
12.3 bags for every 2 inches deep. (rounded)
how deep?
well do to my calculations i made is that it is 6 or 18 feet long