Visualizing how far a cubic yard isn't always intuitive, but there's an easy reference point: 9' x 9' slab at 4” deep, or about five sidewalk squares. In other words, 1 cubic yard of concrete placed at 4-inches deep will cover 81 square feet.
One Cubic Yard of Concrete: 4-inches thick – covers 81 square feet. 5-inches thick – covers 65 square feet.
The amount of concrete you need for a 10x10 slab depends on how thick it will be. So, for a 4-inch slab you'll need 1.24 cubic yards (56 80lb bags), but a 6-inch slab requires 1.85 yards (84 80lb bags). If your slab is a different size or thickness, use our calculator to determine the amount of concrete.
How many bags of concrete are in a yard? To produce one yard of concrete, you'll need to use about 45 80-pound bags (or 90 40-pound bags). Because of the time and labor required to prepare such a large quantity, it is usually more cost- and time-effective to have ready mix concrete delivered.
Visualizing how far a cubic yard isn't always intuitive, but there's an easy reference point: 9' x 9' slab at 4” deep, or about five sidewalk squares. In other words, 1 cubic yard of concrete placed at 4-inches deep will cover 81 square feet.
What Does Pouring Your Own Concrete Cost? Pouring your own concrete can be a cost-effective option, but the overall cost-savings depend on the size and complexity of the project. For small projects, such as a concrete patio or a simple sidewalk , do-it-yourselfers may save up to 50% compared to hiring a pro.
How much does a 30x40 concrete slab cost? The average cost is $4 to $8 per square foot. The median price is about $6 per square foot. Based on these averages, you may pay $4,800 to $9,600 with a median estimate of $7,200.
How Thick Does Concrete Need to Be for a Slab? In general, for residential areas like walkways and patios, 4 inches of concrete is sufficient for a slab. For a deck or deck stair landing, again, around 4 inches of concrete is sufficient.
However, for some smaller projects, you may be able to order concrete by the cubic foot. You can also order concrete by the truckload. A truckload contains about 10 cubic yards of material, though that amount may vary between companies. The average truckload of concrete costs $1,100 to $1,440.
Typical Weight Capacity: A well-constructed 4-inch concrete driveway can typically support weights ranging from 4,000 to 6,000 pounds, which is sufficient for most passenger cars and light SUVs.
The “yard” of concrete is a cubic yard. That is 27 cubic feet, 3′ x 3′ x 3′. The square feet of concrete paving you can obtain from one cubic yard depends on the thickness.
Here's how to do it: Thickness in feet = 4 inches / 12 = ~0.33 feet or 6 inches / 12 = ~0.5 feet. Volume = 40 feet x 60 feet = 2400 square feet. Number of cubic yards = (2400 square feet / 27) * 0.33 feet = 29.63 cubic yards or (2400 square feet / 27) * 0.5 feet = 44.44 cubic yards.
A 4"-thick concrete driveway for vehicles or ½-ton trucks does not need hot-rolled steel to last for decades. Thicker concrete, driveways with poor ground support, and driveways that often sustain heavy loads or vehicles should be strengthened. What is rebar?
Gravel provides a level surface for concrete to spread out on, which prevents it from flowing into the wrong place. It also helps prevent cracking or sinking of your concrete floor as well as keeping it from getting too close to walls or fixtures that may be installed later on.
Applied-load cracking.
In residential concrete, 4 inches is the minimum thickness for walkways and patios. Garage slabs and driveways should be 5 to 6 inches thick if any heavy truck traffic is anticipated, otherwise 4 inches is adequate.
Alternatives to Concrete Slabs
One of the most budget-friendly options is crushed stone or gravel. These materials are not only affordable but also easy to install. They provide a natural aesthetic and excellent drainage.
How much does a 40x60 concrete slab cost? An installed 40x60 concrete slab (4 inches thick) for buildings will typically cost between $9,600 and $19,200. A 4-inch slab will usually cost between $4 and $8 per square foot (depending on your location) for materials and labor.
Labor Cost For Concrete Slabs
The average labor cost for pouring concrete is about $45 per hour or $2.50 per square foot. Labor costs for specifically removing forms and bracing, cleaning, and stacking on the job site range from $0.30 - $0.60 per square foot.
When should I buy a bag versus a pallet? If you are working on one or two small jobs, it is more cost efficient to buy by the bag, rather than a full pallet of premixed concrete. However, if you have a full project load ahead of you, buying by the pallet saves money as well as time on trips to the store.