To calculate the amount of concrete you need for a slab, you should find the cubic yardage of the area you will be filling. Just follow these steps: Measure the area in feet.
- Determine how thick you want the concrete.
- Measure the length and width that you'd like to cover.
- Multiply the length by the width to determine square footage.
- Convert the thickness from inches to feet.
- Multiply the thickness in feet by the square footage to determine cubic feet.
How to build a deck on sloping concrete?
- Dig Foundation Holes and Install Deck Posts.
- Fill the Holes With Concrete.
- Work on the Second Side of the Deck.
- Attach the Floor Beams.
- Add a Railing.
How to install a deck on concrete?
Steps Download Article
- Before you start this (or any other) digging project, call 811, A new, federally-mandated national "Call Before You Dig" number. ...
- Be careful to center the hole on the position for the pier. Specification for distance between piers can be found in most books about deck construction.
- This is the completed hole. ...
How to calculate concrete needed to pour a slab?
How to calculate concrete:
- Determine how thick you want the concrete
- Measure the length and width that you’d like to cover
- Multiply the length by the width to determine square footage
- Convert the thickness from inches to feet
- Multiply the thickness in feet by the square footage to determine cubic feet
- Convert cubic feet to cubic yards by multiplying by .037
How do you calculate concrete slab?
The best way to calculate how much concrete you will need in cubic yards is to do the following:
- Mark your area that needs concrete and divide it into smaller areas.
- Calculate the volume of your area after determining its shape (see the examples below) by multiplying it with the thickness of the concrete.
- Convert the volume from feet to cubic yards to get a precise number of concrete that you need – in cubic yards.
How do you calculate concrete for a deck?
1 cubic yard = 27 cubic feetOne 60-lb bag of concrete gives you . 45 cubic feet of concrete when mixed with 2.5 quarts of water. In order to have enough concrete for one cubic foot, you'll require 2.2 bags of 60-lb concrete. ... One 80-lb bag of concrete yields . 60 cubic feet when combined with 4 quarts of water.
How much concrete do I need for a 12x12 patio?
Regarding this, “how much concrete do I need for a 12×12 slab?”, at 4 inches thick, generally you will need approximately 1.76 cubic yards or 47.52 cubic feet or 1.35 m3 (either 104 bags of 60lb or 80 bags of 80lb) of premixed concrete for a 12×12 slab, at 5 inches thick slab, 2.22 cubic yards or 59.90 cubic feet or ...
How much concrete do I need for a 10x10 patio?
The amount you will need for a 10 x 10 slab is 1.3 cubic yards, we always add an extra 10% to allow for any slab depth variations or spills that may occur.
How much concrete do I need for a 10x10 concrete slab?
At 4″ thick, for a 10×10 slab, generally, you will need 1.23 cubic yards or 33 cubic feet or either 74- 60lb or 56-80lb bags of premixed concrete.
How much does it cost to do a 12x12 concrete slab?
Average Cost To Pour Concrete To pour a typical 10x10 concrete slab will cost $670 to $930, a 12x12 slab for a patio will cost $796 to $1,476, a 20x24 driveway slab runs between $1,440 and $3,360, and a 24x24 slab for a garage will cost $3,058 to $5,944.
How thick should a concrete slab be?
Standard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks. To prepare the base, cut the ground level to the proper depth to allow for the slab thickness.
Does a 10x10 concrete slab need rebar?
Rebar is not necessary for every concrete project. The general rule of thumb is that if you are pouring concrete that is more than 5 inches in depth, you are probably going to want to add in some rebar to help reinforce the entire structure.
How thick should a patio slab be?
Four inchesFour inches is the minimum thickness for a concrete patio. You'll want to make it six to eight inches thick if the patio will support a structure such as a gazebo or hot tub.
How much concrete is needed for a 10x12 slab?
Regarding this, “how much concrete do I need for a 10×12 slab?”, at 4 inches thick, generally you will need approximately 1.46 cubic yards or 39.6 cubic feet (either 86 bags of 60lb or 67 bags of 80lb) of premixed concrete for a 10×12 slab, at 5 inches thick slab, 1.85 cubic yards or 50 cubic feet (either 109 bags of ...
How much would it cost to pour a 10x20 concrete slab?
Cost of concrete per square footSlab SizeSquare FeetAverage Cost10x10100$60010x12120$72010x20200$1,20012x12144$86418 more rows•Aug 7, 2022
How many bags of quikrete do I need for a 10x10 slab?
The average thickness of a 10' x 10' concrete slab for a shed is 4 inches thick. At 4" thick, your 10 x 10 slab will take 56 bags of concrete that weigh 80 lbs.
Is it cheaper to mix your own concrete?
One of the least expensive ways to get concrete is to mix your own.
How much area does an 80 pound bag of concrete cover?
An 80 pounds bag of Quirete's premixed concrete yields 0.60 cubic feet or 0.022 cubic yards, which will cover 3.6 square feet area upto standard depth of 2 inch. 2 inches in feet = 0.166 feet, so, coverage of a 80 pounds bag in square feet = 0.60 ÷ 0.166 = 3.6 square feet.
How much concrete do I need for a 12x12 foot room?
1713 no of bricks required for construction of 12 × 12 room size of 4.5 inch brick wall.
How many 80lb bags of concrete make a yard?
45 bagOne 80lbs bag of Quikrete Concrete Mix will yield approximately . 60 cu ft. So it will take 45 bag to equal one cubic yard of concrete. If you have a project over a 1/2 a cubic yard you should consider our Mix On-site Concrete especially if you are hand mixing.
How many square feet are in a 50 pound bag of concrete?
A 50 lb bag of concrete approximately cover around 1.5 square feet area upto standard depth of depth of 3 inch for your patio and sidewalk. A bag of 50 pound yields 0.375 cubic feet, thickness of slab 3″= 0.25 feet, so, a 50 lb bag of concrete covers = 0.375 ÷ 0.25 = 1.5 square feet.
How much to add to slab for concrete?
Rule of thumb: add 1 / 4 " to the thickness of your slab for your slab concrete budget. This assumes you have the job evenly graded to the right depth, and the grade is well compacted.
How to find cubic yards of concrete?
Essentially you are solving for volume and then converting to cubic yards. For concrete, the formula for volume is as follows: length x width x thickness.
Why is it important to check the size of the concrete on your footing?
The excavator may have dug too deep, or it may have rained and footings needed to be dug out deeper to reach firm soil. So it is important to check a variety of spots on your footing and get an average size. Then use the calculator to figure the amount of concrete needed.
What is bagged concrete used for?
Bagged concrete is ideal for: Pouring small slabs for sidewalks or patios. Setting posts for fences or mailboxes. Making repairs to foundation walls, walkways or steps.
How many linear feet are there in a 6' step porch?
The porch also has 9 linear feet of 6" step. So enter in the footing calculator, 6" depth by 12" width (always figure steps with a 12" width) by 9' length. This totals .17 cubic yards.
How thick is a 12x12 footing?
This 12" x 12" footing needs to be calculated 12" x 16" so the footing is figured to go above grade to reach the 4" slab thickness.
How many yards of concrete do you need to order?
Many ready mix companies will have a minimum order of 1 yard, and will charge shortage fees when ordering partial batches. The average truck holds between 9 and 11 yards total. If your project requires more concrete, multiple trucks will be necessary.
How much does concrete cost per yard?
When evaluating the cost of concrete, consider $130 per yard as an average number. However, concrete pricing different in local areas, also add an extra delivery fee, plus labor charges if hiring a contractor.
How many yards of concrete do you need for a truck?
In that case, you can use our Concrete Calculator to get an idea of how many yards you will need. The average truck holds between 9 and 11 yards total. If your project requires more concrete, multiple trucks will be necessary.
How much does it cost to have concrete poured?
You can estimate an average cost of $4.25 – $6.25 per square foot to have a regular concrete floor slab poured. Thus, if you require a more accurate number of your project’s cost, please request a free estimate from the local contractors in New York City.
Can you have concrete delivered?
If you’re purchasing bagged concrete, you may be able to have it delivered, but if it is only a few bags, you’ll be responsible for transporting it yourself. Moreover, you’ll also need additional equipment for mixing the concrete. A rented mixer can be very helpful, but a wheelbarrow works for just a few bags.
Should I order a ready mix Concrete or just use bags?
Nevertheless, for smaller jobs, like a patio or walkway, you can use our Concrete Calculator to estimate the number of bags instead.
How much to add to slab for concrete?
Rule of thumb: add 1 / 4 ” to the thickness of your slab for your slab concrete budget. This assumes you have the job evenly graded to the right depth, and the grade is well compacted.
How to find cubic yards of concrete?
Essentially you are solving for volume and then converting to cubic yards. For concrete, the formula for volume is as follows: length x width x thickness.
How to convert cubic feet to yards?
Convert cubic feet to cubic yards by multiplying by .037
How thick is a 12x12 footing?
This 12″ x 12″ footing needs to be calculated 12″ x 16″ so the footing is figured to go above grade to reach the 4″ slab thickness.
How many yards of concrete do you need to order?
Many ready mix companies will have a minimum order of 1 yard, and will charge shortage fees when ordering partial batches. The average truck holds between 9 and 11 yards total. If your project requires more concrete, multiple trucks will be necessary.
Can you have bagged concrete delivered?
If you’re purchasing bagged concrete you may be able to have it delivered, but if it is only a few bags you’ll be responsible for transporting it yourself. You’ll also need additional equipment for mixing the concrete. A rented mixer can be very helpful, but a wheelbarrow works for just a few bags.
Is 20 cubic yards of concrete a good order?
A 20 cubic yard order with 1 cubic yard left over is a good order. A 20 cubic yard order that comes up cubic yard short is not a good order.
How to calculate how much concrete I need for a slab?
How do I calculate how much concrete I need for a slab? To calculate the amount of concrete you need for a slab, you should find the cubic yardage of the area you will be filling. Just follow these steps: Measure the area in feet. Multiply length by width, and then by thickness.
How to calculate cubic yard of slab?
Once you find the dimensions of your slab, input them into the calculator along with the thickness. Enter your project area measurements rounded to the nearest foot. If you’d rather do the math yourself, simply measure length, width and height in feet. Then multiply these dimensions together. Divide the resulting number by 27 to find the cubic yardage.
How many square feet does an 80 lb bag of concrete cover?
One 80lb -bag covers an area of about 2 square feet, for a slab 4 inches thick. Two 60lb -bags of concrete cover an area of about 2 square feet for a slab that is 6 inches thick.
How many cubic yards of concrete can a truck hold?
A truckload of concrete can usually hold a maximum of 10 cubic yards.
What factors affect the cost of concrete?
There are several things that can affect the cost of your concrete project, including: How complicated the project is: stairs will likely cost more than a slab, for example. Materials: polymer concrete is often more expensive. Labor prices: jobs that take longer and need more workers will have a higher price.
How long does it take for concrete to harden?
Here are a few common varieties of concrete: Quick-set: Hardens in 20 to 40 minutes. Best for small projects. Regular-set: 24 to 48 hour set time. Used more for large projects. High-strength: Usually sets in 10 to 12 hours.
Does adding rebar to concrete cost more?
Extra strength: adding rebar or mesh to the concrete will up the cost. Additional tasks: if pros need to remove debris, get rid of your existing patio or dig before starting, it will be more expensive.
Calculator Use
Calculate volumes for concrete slabs, walls, footers, columns, steps, curbs and gutters. Enter dimensions in US units (inches or feet) or metric units (centimeters or meters) of your concrete structure to get the cubic yards value of the amount of concrete you will need to make this structure.
Curbs & Gutters
We calculate the volume in sections from the ground to the top of each section. The Curb and Gutter are each a section.