A yard of concrete is more than just a concept – it’s a concrete reality. To understand how much concreteness is in one cubic yard of concrete, think of it as equivalent to around 3,600 pounds or 80 bags.
While getting involved in a concrete project, it’s important to understand the total amount of material needed to complete the job.
The weight of premix concrete in dry condition is around 133 lbs. every cubic foot, 2136 kg every cubic meter, or 3600 lbs. every cubic yard. The concrete’s weight is identified by its density which can vary based on the amount of water, aggregate, and air.
The number of concrete bags in a yard you need depends on the weight and size of the bag you buy or use. Take note that for this, the brand doesn’t matter, but the amount you require depends on what size bag you buy.
Concrete ready mix is made up of a blended mix of sand, gravel, cement, and other ingredients, i.e., generally ready mix concrete comes in different sizes and weights of bags such as 40, 60, 80, 90 lbs., etc.
Based on the imperial system of measurement, in the US, one cubic yard is the unit volume that represents 3 feet deep by 3 feet wide by 3 feet long. So one cubic yard is 27 cubic feet.
How Many Concrete Bags Required In A Yard?
It will generally require 90 bags of 40 lb. bags, 72 sacks of 50 lb, 60 bags of 60 lb, 45 bags of 80 lb, or 40 bags of 90 lb to create a cubic yard of concrete. It covers around 108 square feet area up to a standard depth of 3 inches for patio and slab.
| Weight of concrete bag | Number bags Per Yard |
|---|---|
| 40 | 90 |
| 50 | 72 |
| 60 | 60 |
| 80 | 45 |
| 90 | 40 |
A number Of 50 lb Sacks Of Concrete Needed In A Cubic Yard
50 lb bags of premix cement, gravel, and sand because concrete is about 0.0375 cubic feet for every bag, i.e., 50/133 = 0.375. We all know that 27 cubic feet make one cubic yard; thus, the number of 50 lb concrete bags must be 27/0.375 = 72 bags.
How Many Are 60 lb Bags Of Concrete In A Cubic Yard?
60 lb concrete bag mix is suitable for non-structural and structural applications of 2 inches thick or more. This ready mix is easy to utilize as a concrete mix blends portland cement, gravel, sand, and other ingredients.
Hence, 60 lb of premix cement, gravel, and sand as concrete are around 60/133 = 0.45, i.e., 0.45 cubic feet of every bag. We all know that 27 cubic feet make one yard, so the number of concrete bags of 60 lb bags in a cubic yard will be around 27/0.45 = 60 bags.
Thus, you will require about 60 bags of 60lb concrete in one cubic yard that will cover about 108 square feet with a standard depth of 3 inches for your patio and slab.
How Many 80 lb Bags Of Concrete Need In a Cubic Yard?
80 lb bags of concrete mix is ideal for steps, walkways, sidewalks, ramps, curbs, and patios. This ready mix is proper as concrete which comprises sand, gravel, cement, and other ingredients. An 80 lb bag of cement, stone, and sand as concrete is about 80/133 = 0.60, i.e., 0.60 cubic feet for every bag.
We all know that there are 27 cubic feet in a cubic yard; thus, the number of 80 lb concrete mix in a cubic yard will be around 27/0.60 = 45 bags.
How Many Are 90 lb Bags Of Concrete In a Cubic Yard?
90 lb bags of concrete mix is ideal for building walls, sidewalks, setting posts, foundation repairing walls, ramps, curbs, and steps. 90 lb bags of premix cement, gravel, and sand are 90/133 = 0.676, i.e., 0.676 cubic feet for every bag.
We know 27 cubic feet make one cubic yard, thus the number of 90 lb bags you require will be 27/0.676 = 40 bags. Hence, you require bags of 90 lb concrete for one cubic yard.
How Many 40 lb Bags Of Concrete Need In A Cubic Yard?
A 40 lb concrete sack is also useful for repairing building walls, foundation walls, ramps, steps, curb, and so on. It means 40/133 = 0.30 i.e. 0.30 cubic foot for every bag. So the number of 40 lb concrete sacks in a cubic yard according to 27 cubic feet in one cubic yard will be 27/0.30 = 90 bags.
Thus, you need 90 bags of 40 lb premix concrete to make the concrete cubic yard covering 108 square feet area with 3 inches of patio and slab.
Final Thoughts
In conclusion, the number of concrete bags you need in a cubic yard depends upon the type and size of premix cement, gravel, sand, and other ingredients. Generally, it requires 90 bags of 40 lb bags, 72 sacks of 50 lb, 60 bags of 60 lb, 45 bags of 80 lb, or 40 bags of 90 lb to create a cubic yard of concrete.
This amount of concrete bag will cover around 108 square feet area up to a standard depth of 3 inches for the patio and slab.
Therefore, you must be careful while selecting the right type of premix cement, gravel, sand, and other ingredients for your project. If you are still confused about the number of concrete bags you need, contacting a professional is the best option.
