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How many 20kg bags of concrete do I need?
one 20kg bag will cover an area of 1.1m2 to a depth of approximately 10mm. or 108 x 20kg bags equates to one cubic metre of mixed concrete.
How much will a bag of concrete cover?
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 to calculate the size of a concrete slab?
Enter your length, width, and thickness then hit calculate and you’ll see how many cubic yards you need. This concrete calculator also calculates cubic meters. Just plug in the numbers, make sure you choose meters, and hit calculate. You’ll see both cubic yards and cubic meters in the answer area.
How to calculate the volume of concrete for a building?
Multiply the width times the length times the height (W × L × H), or use our volume calculator to find the cubic feet. Convert the volume to cubic yards from cubic feet. To do so, divide the cubic footage by 27 to get the yards of concrete needed.
How to calculate the thickness of a concrete floor?
Once I’ve determined the average grade of the dirt, I can set the finish concrete floor grade up 4, 5, or 6 inches from that, depending on how thick I want my concrete floor. When I know my average thickness of the concrete, I can plug those numbers into the concrete calculator it’ll tell me how many cubic yards to order.
How to calculate how many cubic yards of concrete?
This is a terrific concrete slab calculator for estimating how many cubic yards to order to complete your concrete slabs, concrete floors, concrete walls, and concrete footings. Just remember to add some extra concrete to your total order because running short is not an option. How much concrete do I need?