How many bags of concrete do i need for a 10x10 slab

How many bags of concrete do i need for a 10×10 slab | how many 60 lb bags of concrete do i need for a 10×10 slab | how many 80 lb bags of concrete do i need for a 10×10 slab.

Concrete ready mix is made of blended mix of Portland cement, sand gravel and other approved admixture. Generally, dry ready mix concrete are available in different bag size and weight condition like 40-pound, 60-pound bag, 80-pound bag, and 90-pound bag.

Regardless of size you need to calculate the volume of concrete in cubic yards before ordering the concrete bags. Volume is calculated by multiplying length, width and depth of slab. In this article we have to calculate required quantity of concrete in cubic yard, or in cubic feet, or number of concrete bag for a 10×10 (100 sq ft) slab at 2 inches, 3 inches, 4 inches, 5 inches or 6 inches thick.

Generally standard thickness of concrete slab is 4 inches thick in normal conditions, if 10×10 slab have heavy traffic and heavy load, you should take depth 5″ or 6 inches thick. Or at low load you should take depth 2″ or 3 inches thick.

Dry mix of premix concrete weighs about 133 pound per cubic foot, 3,600 pound per cubic yard, or 2,136 kg per cubic metre. This unit weight of concrete is determined by its density, which can vary based on the amount of gravel, sand, water, and air in the mix.

In United States, based on Imperial and US customary measurement system, one cubic yard is unit of measurement of volume represented by 3 feet long by 3 feet wide by 3 feet high (3’×3’×3′ = 27 cubic feet), so one cubic yard is equal to 27 cubic feet.

Ready mix concrete or bag concrete can be used for building or repairing foundation walls, fence post, sidewalks, curbs, steps and ramps and for setting posts and others concrete structure like, footing, slab, beam and columns.

How many bags of concrete do i need for a 10x10 slab — How many bags of concrete do i need for a 10×10 slab

How many bags of concrete do i need for a 10×10 slab

To figure the amount of yards of concrete you will need, take all the measurements Length & width in feet and thickness in inches. Convert thickness in feet. Multiply its length, width and thickness to get cubic footage. Multiply the total cubic footage by 0.037 to get total yards of concrete needed.

To determine how many bags of premixed concrete you will need, divide the total cubic yards needed by the bag yields. Use the following yields per each bag size: A 40-pound bag yields 0.011 cubic yards, a 60-pound bag yields 0.017 cubic yards, a 50-pound bag yields 0.0138 cubic yards and an 80-pound bag yields 0.022 cubic yards.

If you measure their yields in cubic feet, then yields per each bag size are following: A 40-pound bag yields 0.30 cubic feet, a 60-pound bag yields 0.45 cubic feet, a 50-pound bag yields 0.375 cubic feet and an 80-pound bag yields 0.60 cubic feet.

To determine the how many bags of concrete do I need for a 10×10 slab, this solve in following steps:-

Step 1 :- Calculate the volume in cubic feet:- we have given 10×10 slab (length × width), consider it is 4 inches thick slab, 4 inch = 4″/12 = 0.33 feet, to determine the volume of slab, you need to multiply all dimensions, such that = 10′ × 10′ × 0.33′ = 33 cubic foot.

Step 2 :- Converting cubic feet into cubic yard:- you should divide it by 27, because 1 cubic yard = 27 cubic foot, so volume of concrete you needed for 10 × 10 slab at 4 inches thick in cubic yard = 33/27 = 1.23 cubic yards.

Step 3 :- Add 10% extra :- considering extra 10% wastage during mixing and pouring, so 10% of 1.23 cubic yards = 0.123, add 1.23 + 0.122 = 1.35 cubic yards.

Step 4:- Divide required quantity of concrete in cubic feet by per bag yields, such as No. of 90lb bags = 33/0.68 = 48 bags, No. of 80lb bags = 33/0.60 = 55 bags, No. of 60lb bags = 33/0.45 = 74 bags, No. of 50lb bags = 33/ 0.375 = 88 bags, or No. of 40lb bags = 33/0.30 = 110 bags.

Always you should purchase 5 to 10% more premixed than required. 4″ thick slab of 10×10 is ideal in normal load or standard condition for making sidewalks, curbs, steps, ramp, walkway and patio and 5 inch or 6 inch thick slab is ideal for heavy load and heavy traffic.

How many bags of concrete do i need for a 10×10 slab? For a 10×10 Slab with 4” thickness, you need either 55 80-Pound, 74 60-pound, 88 50-pound, 48 90-pound or 110 40-pound bags (or sacks) of premixed (Quikrete or Sakrete) bag concrete. If you measured in cubic feet or in cubic yards, then 33 cubic feet or 1.23 cubic yards of concrete mix will be required.

You can also use concrete calculator online tool to calculate how many bags of concrete do you need for your project.

How many bags of concrete do i need for a 10×10 slab at 4 inches thick

For a 10×10 Slab at 4 inches thick, you need either 55 80-Pound, 74 60-pound, 88 50-pound, 48 90-pound or 110 40-pound bags (or sacks) of premixed (Quikrete or Sakrete) bag concrete. If you measured in cubic feet or in cubic yards, then 33 cubic feet or 1.23 cubic yards of concrete mix will be required.