How many bags of cement do I need for square feet?
One 50-pound bag of Quikrete Fast Setting Concrete Mix yields about . 375 cubic feet. For example, if you need to cover 33.333 cubic feet, using 60-pound bags of concrete, divide 33.333 cubic feet by . 45 cubic feet to get 74.07 total bags of concrete.
How many cubic feet will 80 lb bag of concrete?
6 cubic feet
6 cubic feet for an 80 lb bag. The first thing you need to know is the “density” of the concrete.
How many bags of concrete do I need for a 12×12 pad?
To determine how many bags of concrete you will need, divide the total cubic yards needed by the yields, at 4 inch thick, for a 12×12 slab you will need 1.76 yards of concrete, so number of 80lb bag of concrete = 1.76 ÷ 0.022 = 80 bags, No. of 60lb bag = 1.76 ÷ 0.017 = 104 bags & No.
How many cubic feet are in a 90 pound bag of concrete?
90lb bag of premixed cement, sand and gravel as concrete is (90/133 = 0.676) around 0.676 cubic foot per bag, as we know there are 27 cubic feet in one cubic yard, so number of 90 lb bags of concrete are in a cubic yard = 27/0.676 = 40 bags.
How many bags of pre mix concrete do I Need?
Using the table below, you would need to buy at least eight 80 lb. bags and one 40 lb. bag (yielding a total of 5.1 cubic feet) of concrete to allow enough for extra. Pre-Mix Bag Concrete Yield The following table shows the approximate yield of mixed concrete for common bag weights. Tips For Ordering Concrete
How much does a bag of concrete weigh?
A concrete slab 36″ X 36″ at a depth of 4″, has a volume of 3 ft³ = 10 x 40 # bags 10 Bags Total Bag Weight 400 lb Calculated at 133.3 lb per ft³ – Allow extra for waste.
How many bags of concrete to fill one cubic yard?
The table below shows the coverage of different sizes of pre-mix bags. On average, it will take 90 40lb bags, 60 60lb bags, or 45 80lb bags to fill one cubic yard of concrete. Add 5%-10% additional material to account for settling, spillage, and waste. 
How many bags of Quikrete mortar do I Need?
The calculator will indicate the number of 60 or 80 pound bags of QUIKRETE® Mortar Mix you need to construct your project with a 3/8 inch mortar joint. (All yields are approximate and do not include allowance for uneven subgrade, waste, etc.) If playback doesn’t begin shortly, try restarting your device. Full screen is unavailable.