How many bags of concrete for 8x8 slab

How much concrete do I need for a 6×8 slab. As per general practices, generally you will need approximately 0.59 cubic yards or 15.84 cubic feet or 0.45m3 (either 35 bags of 60lb or 27 bags of 80lb) of premixed concrete for a 6×8 slab at 4 inches thick, and, at 3 inches thick, for a 6×8 slab, either 26 bags of 60lb, or 20 bags of 80lb, or 40 ...

Assuming a standard concrete mix ratio, you'll need around 6-7 bags of cement (50kg each) for 1 cubic meter of concrete. How many bags of sand and cement for 10m2? For a 10m² area, it depends on the thickness of the application (e.g., laying slabs or bricks).The calculator will indicate the estimated number of 25 kg or 30 kg bags of Quikrete® Concrete Mix needed to build a 3″, 4″ or 6″ slab (with a typical waste factor). Yields are approximate and will vary based upon placement methods, equipment utilized and do not include allowance for uneven subgrade, waste, etc. ... 8" x 8' tube: 6.5: 5. ...A concrete slab will be easy to level and get a good base to construct a timber panel sun-floor. With Postcrete, you may not get the best level as it sets fast, and you will not have the ample time needed to level the slab; this makes concrete the better alternative. ... How Many Bags of Postcrete Do I Need? You usually need between one and ...Calculation Result. 0.009 cubic feet or 0.000 cubic yards or 0.000 cubic meters. if pre-mixed concrete*, it is 1.231 lbs or 0.558 kgs. if 60 lbs per bag, it is 0.021 bags. if 80 lbs per …Conclusions :-. For a 600 sq ft rcc roof slab casting at 4 inch thick, generally you will need 42 bags (around 2074 kg) of cement which is approximately equal as 50.83 in cubic feet or in 1.44 cubic meter by using 1:2:3 (cement: sand: aggregate) mix to gain 3000 Psi compressive strength of concrete in 28 days.To find the amount of ready mix concrete for a slab, you can estimate it with a standard volume calculator. Select dimensions of the concrete structure e.g., beam, column, slab, footing, etc. ... Ans. Materials required are 7 nos. of 50 kg bag of cement, 0.42 m 3 of sand and 0.83 m 3 of stone aggregate. More construction calculators. Brick;

Calculation of volume of concrete for beams:-. Beams are generally in a rectangular shape, to calculate the volume of concrete required for beams calculate the top or bottom surface area of the beam and multiply with the depth of beams. Volume of concrete for rectangular beam = Surface area x Depth = length x width x depth = 4×0.5×0.4=0.8m 3.The volume of concrete required for a 10- by 10-foot slab depends on the diameter of the slab. For a 4 inch thickness ...Thanks for watchingConnect with us ...Overall, calculate the volume of the concrete footings. To do multiply the width by the length by the height. Say, your concrete footings are 1 ft by 1 fit by 1.5 ft. The volume is 1 * 1 * 1.5 = 1.5 cu ft of concrete per footing. You then calculate how many bags of concrete, explained below. The number of bags you will need depends on the size ...With this concrete calculator (in cubic meters/yards & bags), you can calculate the volume or number of bags of concrete needed for slabs, footings, walls, stairs, columns, and more. ... Determine how many cubic yards of concrete or 80-lb bags are required for the following solid stairs project: Rise = 6″. Run = 12″. Platform = 30″. Width ...As per general practices, generally you will need approximately 133 bags of 40lb (pounds) of premixed concrete for a 10×12 slab at 4 inches thick, 168 bags of 40lb at 5″ thick, 202 bags of 40lb at 6″ thick, 101 bags of 40lb at 3″ thick, and 68 bags of 40lb at 2″ thick. Conclusions:-.A Concrete Slab Thickness Calculator is a tool used in civil and structural engineering to estimate the required thickness of a concrete slab for a given design load, span length, maximum allowable deflection, and modulus of rupture. ... How Many Bags of Concrete Do I Need Calculator; Total. 8. Shares. Share 0. Pin it 8. Tweet 0. Share 0. …

Concrete Footings Calculator. Input length, width and depth of the area. Click the button to calculate the volume of concrete and man-hours (not including mixing) needed for this job. This calculator is to be used as an estimating tool only.blocks = wall sq ft block sq ft. If you’re using a standard 8″ x 8″ x 16″ block, find the number of blocks needed by dividing the wall square footage by 0.89. blocks = wall sq ft 0.89. We recommend adding 5%-10% additional blocks to account for broken blocks or blocks that need to be cut for the edges.Using This Cement Volume Calculator. This calculator is based on 6 - 94 Lb. sacks of Portland Cement per cubic yard (3000psi). 27 cubic feet equals 1 cubic yard. Enter number of bags of Portland cement or fraction of bag. Example: One and half bag, Enter 1.5 Round off answer to next even higher figures. This calculator is intended for ...How Much Concrete Do I Need? Use our concrete calculator to determine how many bags of concrete are needed to get your simple slab of concrete built. Simply enter the width, length, and depth of the area. Then, depending on what size bags are available, you will know the amount needed for your project. Width (ft)

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With a brief look, a 30x40 area at 6 inches deep, you would need approximately 31.56 tons or 22.22 cubic yards of gravel. Concrete reinforcing is also recommended in high traffic areas and medium to large areas. Wire mesh on average costs $0.56 per sq ft and fiber mesh costs $0.13 per sq ft. So for your 1200 sq ft area, this may roughly cost ... A: Quikrete Concrete Mix 60 lb. is designed for pouring concrete 2 in thick or more and building or repairing anything out of concrete. We do not suggest mixing it with sand and pouring it between patio stones. For more detailed product selection please give Quikrete Customer Support a call (800)-282-5828. by. A concrete slab costs $6 to $12 per square foot on average installed, or $5,400 to $10,800 to pour a 30'x30' slab. Concrete materials cost $3 to $7 per square foot. Most concrete slabs are 4" to 6" thick and are used to build a garage floor, patio, or house foundation. Next, we will fill in the dimensions in the first section. Then, in the data entry of concrete bags section, we will specify 80 pound bags, and leave the rest of the fields for the predefined values. In brief, the results show that this project requires almost 1 yard of concrete or 45 80-lb bags of pre-mixed concrete. Apr 25, 2023 · For example, if one 80-pound bag of concrete mix yields 0.6 cubic feet, you can calculate the number of bags required by first converting the volume in cubic yards to cubic feet (1 cubic yard = 27 cubic feet) and then dividing the total cubic feet by the yield per bag. 00:00 - How many bags of concrete do I need for a 4x4 slab?00:40 - How thick should a concrete driveway be?01:13 - How much area does a bag of concrete cover...

At 6 inches thick, for a 10×12 slab you would need approximately either 100 80-Pound, 134 60-pound, or 200 40-pound bags of premixed concrete. If you measure in yards, 2.22 cubic yards (or 60 cubic feet) of concrete will be required. Let's do calculation and proceeds following steps: 1.Use this concrete calculator to estimate how much concrete in volume (cubic ft, cubic yards, or cubic meters), weight or number of bags you would need for your walls, columns, steps, slabs, footings, etc. The calculator …Step 1: Build the Concrete Slab Frame. Use 2-by-4 lumber to build a wood frame of the desired size and set it in place to mark the area. Drive landscaping stakes into the ground to mark the outside corners of the frame.2" Depth = Fill the area 2" from ground to surface of Pebbles. 3" Depth = Fill the area 3" from ground to surface of Pebbles. 4" Depth = Fill the area 4" from ground to surface of Pebbles. MSI's pebbles come in 30 pounds per cubic foot. Use our pebble calculator to find out how much rock you need to cover a 2-inch, 3-inch, or 4-inch depth.How many concrete bags would I need for a 8 ft x 14 ft x 6" slab? 94 x 80lb Concrete bags. How much does it cost to pour a 8'x14' x6" slab? Ready-mix costs approx $358.76. How much does it cost to hire a contractor to concrete a 8'x14' x6" slab? A pro costs between $560.00 and $1,176.00. How do you calculate concrete volume?Sep 20, 2023 · How many 80 pound bags of concrete to pour a 8x8 slab 4 inches thick? U need 1.63 80lb bags per square ft so 131bags to do 8ft by 8ft. How many concrete bags would I need for a 18 ft x 30 ft x 6" slab? 449 x 80lb Concrete bags. How much does it cost to pour a 18'x30' x6" slab? Ready-mix costs approx $1,252.20. How much does it cost to hire a contractor to concrete a 18'x30' x6" slab? A pro costs between $2,700.00 and $5,670.00. How do you calculate concrete volume?Using a concrete calculator is an easy and efficient way to determine how many bags of concrete you need for your project. The calculator takes into account the size of your project and the thickness of the concrete to give you an accurate estimate of the amount of concrete you’ll need. By using a concrete calculator, you can save yourself ...Step 4:- to determine how many bags of concrete you will need, divide the total cubic yardage by the one bag yields, as you know premixed bag of concrete available in 40lb, 60lb & 80lb. 40lb bag of concrete yields about 0.011 cubic yards, 60lb bag of concrete yields about 0.017 cubic yards and 80lb bag of concrete yields about 0.022 cubic yards.Now, if we'd had a mixer, 40 bags wouldn't have been as big a deal. Nonetheless, that was a mistake on my part. Forty 80-lb. bags of concrete mix is almost a yard of concrete. The bag mix cost about $250. A yard of ready-mix, with the short-load charge, would have cost about $500 and saved many hours of labor.Most contractors charge $3.50 to $7.50 per square foot extra to stain or color the concrete. Stamping a new design usually costs $10 to $14 per square foot additional, while very elaborate designs with multiple colors and patterns will cost $18 to $20 per square foot additional.

A 10 x 10 slab that's 5 inches thick needs 1.6 cubic yards or (72) 80lb bags of concrete. A 10 x 10 slab that's 6 inches thick needs 1.85 cubic yards or (84) 80lb bags of concrete. A 10 x 10 slab that's 7 inches thick needs 2.2 cubic yards or (99) 80lb bags of concrete.

Width. Feet. Inches. Select a Paver Size. Select a Paver Size. Calculate. Shop Stones & Pavers. Want to know how many pavers you need to buy for a patio or walkway? Use our paver calculator to get an estimate before you shop.How many bags of concrete do i need for a 4×8 slabHow many bags of concrete you will need depend on:- 1) thickness of slab and 2) weight of the bag.#hellosir...As per general practices, generally you will need approximately 3.13 cubic yards or 84.48 cubic feet or 2.4m3 of ready mix concrete for a 16×16 slab at 4 inches thick. At 5 inches thick, for a 16'×16′ slab, 3.94 cubic yards or 106.5 cubic feet or 3m3 of ready mix concrete are required, while at 6 inches thick, 4.7 cubic yards or 128 cubic ...With a brief look, a 8x30 area at 6 inches deep, you would need approximately 6.31 tons or 4.44 cubic yards of gravel. Concrete reinforcing is also recommended in high traffic areas and medium to large areas. Wire mesh on average costs $0.56 per sq ft and fiber mesh costs $0.13 per sq ft. So for your 240 sq ft area, this may roughly cost $134. ...Wall (sq ft) Block Size. 8 inch 12 inch. Request a Quote. Bags Required =. (add approx. 5% to the total for waste) Text Verification. Our concrete block calculators provide guidance to determine building materials required for construction projects. Try it out today!Here is how to calculate the required number of bags: First, you need to calculate the volume of the post hole. Volume = 1.96344 cubic feet or 0.07271 cubic yards. The second step is to divide the volume by the yield. For example, for a 60lb bag, 0.07271 / 0.01648 = 4.412, rounding up to 5 60lb bags.With a brief look, a 12x14 area at 6 inches deep, you would need approximately 4.42 tons or 3.11 cubic yards of gravel. Concrete reinforcing is also recommended in high traffic areas and medium to large areas. Wire mesh on average costs $0.56 per sq ft and fiber mesh costs $0.13 per sq ft. So for your 168 sq ft area, this may roughly cost $94. ...

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We'll assume each shed foundation is 6" deep with gravel. 8×12 storage shed - this is a popular small prefab storage shed size. 10x14x0.5 = 70; 70/27 = 2.6 cubic yards or 3.6 tons of gravel. 12×18 storage shed - this is a medium size backyard storage shed. 14x20x0.5 = 140; 140/27 = 5.2 cubic yards or 7.3 tons of gravel.Cost per Bag. A concrete slab 36" X 36" at a depth of 4", has a volume of 3 ft³ = 10 x 40 # bags. 10 Bags. Total Bag Weight 400 lb. Calculated at 133.3 lb per ft³ - Allow extra for waste. Pre-Mix Concrete Bag Calculator Calculated at 133.3 lb per ft³ - Allow extra for waste. Cubic Feet.We want the wall to be 15 feet high and 30 feet in length. I want to know how many concrete blocks will be required, and an estimate for the cost of the masonry project. Entering these dimensions into the concrete block calculator gives a wall area in square feet of: How many 40lb bags of concrete do I need for a 8×8 slab. As per general practices, generally you will need approximately 71 bags of 40lb (pounds) of premixed concrete for a 8×8 slab at 4 inches thick, 89 bags of 40lb at 5″ thick, 109 bags of 40lb at 6″ thick, 54 bags of 40lb at 3″ thick, and 36 bags of 40lb at 2″ thick. Conclusions:-. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yields, at 6 inch thick, for a 10×8 slab you will need 1.48 yards of concrete, so number of 80lb bag of concrete = 1.48 ÷ 0.022 = 68 bags, No. of 60lb bag = 1.48 ÷ 0.017 = 87 bags and No. of 40lb bag = 1.48 ÷ 0.011 = 135 bags. Regarding this ...In US, dry ready mix concrete are packed in different bag size and weight in pounds such as smaller bag of 40lb (pounds) and 50lb (pounds), medium are of 60lb (pounds) bag, and larger are of 80lb and 90lb bag. If you want to install 5×4 concrete slab, first thing is to know about depth of slab and square footage of slab. Regardless of premixed ...Divide the resulting number by 27 to find cubic yards. The volume of concrete required for a 10- by 10-foot slab depends on the diameter of the slab. For a 4-inch slab, either eight 60-pound or six 80-pound bags are required, while for a 6-inch slab, either 12 60-pound or nine 80-pound bags are necessary.Total Length 240 m. Includes 10% waste / lap. Exact Spacing. Length 600 mid 300. Width 600 mid 500. 40 x 6000 Lengths. $ (Enter Cost per Bar) Approx Weight 213.1 kg. Slab Volume 6 m³.For example, if one 80-pound bag of concrete mix yields 0.6 cubic feet, you can calculate the number of bags required by first converting the volume in cubic yards to cubic feet (1 cubic yard = 27 cubic feet) and then dividing the total cubic feet by the yield per bag.For example, if one 80-pound bag of concrete mix yields 0.6 cubic feet, you can calculate the number of bags required by first converting the volume in cubic yards to cubic feet (1 cubic yard = 27 cubic feet) and then dividing the total cubic feet by the yield per bag. ….

In this video, we show you how to pour a small DIY concrete pad! #DIY #ConcreteSHOP HERE:Trowel: https://amzn.to/3x4OHxhWheel Barrow: https://amzn.to/3M3V5Jp...We’ll assume each shed foundation is 6” deep with gravel. 8×12 storage shed – this is a popular small prefab storage shed size. 10x14x0.5 = 70; 70/27 = 2.6 cubic yards or 3.6 tons of gravel. 12×18 storage shed – this is a medium size backyard storage shed. 14x20x0.5 = 140; 140/27 = 5.2 cubic yards or 7.3 tons of gravel.Next, multiply the surface area by the thickness of the slab. Convert the thickness into feet so that you'll get the volume product in cubic feet. This, in turn, makes it simpler to calculate the number of yards you'll need for your concrete order. For example, a 10 x 12-foot slab has an area of 120 square feet.The first device on offer at Harbor Freight is the Bauer 4 cu. ft. cement mixer.The mixer's product description says it's supposed to be able to handle up to two 80-pound bags of concrete mix in a ...Please call us 0845 8726446. Whether you are building a small shed base or a large driveway this calculator will give you the the volume of hardcore and concrete required.1:2:4 mix= approx 7 bags of cement per cubic meter. 1:3:6 mix= approx 4 bags of cement per cubic meter. 5 bags of cement per cubic meter is optimal considering cost and quality. Volume of slab= Slab Area x Slab thickness. Slab area= 180 sq.m. Thickness used= 150mm. Volume of slab= 180 x .15m. 27m3. Beams and slabs are mostly casted together, hence:The Concrete by 60lb Bag calculator computes the number of 60 pound bags of concrete and water needed to mix a volume ( V) of concrete. INSTRUCTIONS: Choose units and enter the following: ( V ) Volume of Concrete Needed. 60 lb Bags (nB): The calculator returns the number of 60 lb bags needed and the gallons of water needed. 0.444 cubic yards (12 ft 3) Concrete needed. 0.80 tons (1,596 lbs) Concrete needed (bags) 19.95 bags of 80 lbs each, or 26.59 bags of 60 lbs each, or 39.89 bags of 40 lbs each. get code. Quick navigation: Essential concrete basics for using a concrete calculator. Calculating how much concrete you need. This formula will give you the estimated cubic yardage needed to do your project. For example if you have a concrete slab 24' L x 24' W x 6" thick, the formula would read like this; 24 x 24 = 576 x .5 = 288 divided by 27 …You can also type the area directly into our paver sand calculator. Decide how thick the layer of sand will be. Let's assume a depth of 1 inch or 1/12 ft. Multiply the area by depth to find the volume of sand required: V = 161.5 ft² × 1/12 ft = 13.458 cubic feet. How many bags of concrete for 8x8 slab, Only put 2 bags in a 3 bag mixer. It's less strain on the $120 BS machine made in China, and you. Rent a vehicle, buy the mixer (even if you only use it once, it's worth it) and have them load an entire skid of 60 pound bags of concrete; excess to be returned: still in the truck. 80s are heavy.... Sixty, 60lbs bags = 1cu ft. (56 bags on a pallet), How many concrete bags would I need for a 8 ft x 12 ft x 6" slab? 80 x 80lb Concrete bags. How much does it cost to pour a 8'x12' x6" slab? Ready-mix costs approx $331.79. How much does it cost to hire a contractor to concrete a 8'x12' x6" slab? A pro costs between $480.00 and $1,008.00. How do you calculate concrete volume?, Apr 26, 2024 ... We need 6.28 cubic yards (4.8 m3) of cement, and our producer sells cement in bags weighing 60 lb (25 kg) with a density of 150 lb/cu ft (2400 ..., To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. Use the following yields per each bag size: 40 pound bag yields …, How many concrete bags would I need for a 8 ft x 8 ft x 6" slab? 54 x 80lb Concrete bags. How much does it cost to pour a 8'x8' x6" slab? Ready-mix costs approx $277.86. , Step 3: Add the Gravel Base. A solid gravel base helps prevent uneven settling and erosion underneath the slab. Pour 3-4 inches of QUIKRETE All-Purpose Gravel or crushed stone inside the form. Use a rake to evenly spread the gravel. Compact the gravel with a hand tamper before leveling it with the top of the form., To determine how many bags of concrete you will need, divide the total cubic yards needed by the yields, at 4 inch thick, for a 4×5 slab you will need 0.244 yards of concrete, so number of 80lb bag of concrete = 0.244 ÷ 0.022 = 11 bags, No. of 60lb bag = 0.244 ÷ 0.017 = 15 bags & No. of 40lb bag = 0.244 ÷ 0.011 = 22 bags., Concrete calculator in yards: Yards of concrete = Cubic feet of concrete × 0.037 or Cubic feet of concrete ÷ 27. To calculate how many cubic yards of concrete you will need for slab, multiply the total cubic feet needed by the 0.037 to get cubic yards of concrete. 1 bag cement volume: 50kg, 40kg, 25kg, 20kg & 30kg., 0.444 cubic yards (12 ft 3) Concrete needed. 0.80 tons (1,596 lbs) Concrete needed (bags) 19.95 bags of 80 lbs each, or 26.59 bags of 60 lbs each, or 39.89 bags of 40 lbs each. get code. Quick navigation: Essential concrete basics for using a concrete calculator. Calculating how much concrete you need., How much concrete do I need for a 6×4 slab. As per general practices, generally you will need approximately 0.30 cubic yards or 7.92 cubic feet or 0.22m3 (either 18 bags of 60lb or 14 bags of 80lb) of premixed concrete for a 6×4 slab at 4 inches thick, and, at 3 inches thick, for a 6×4 slab, either 13 bags of 60lb, or 10 bags of 80lb, or 20 ..., 1. If you don't already have a good gravel base, dig out the "bad" dirt and replace with a good crushed gravel. I would go as deep as the frost line in your area. If you don't have any freeze thaw cycles a 12" to 24" base should be good. 2. Compact or roll the gravel in 12" lifts to prevent the slab from sinking. 3., For example, if one 80-pound bag of concrete mix yields 0.6 cubic feet, you can calculate the number of bags required by first converting the volume in cubic yards to cubic feet (1 cubic yard = 27 cubic feet) and then dividing the total cubic feet by the yield per bag., A solid, unbroken slab of concrete weighs about two tons (or 4,000 pounds) per cubic yard. Breaking up concrete roughly halves the total weight per cubic yard to about one half ton (or about 2,000 pounds). ... 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 ..., There are 188 bags of 80 pound premix concrete are required for 15×15 slab at 6″ thick. Using pre-mixed bags to cover 15×15 (225 sq ft) at a depth of 6″, the estimated cost is $658 (188 × $3.50 = $658). If you have a 15×15 slab with 4 inches thick, you would need 2.75 cubic yards or 74.25 cubic feet of concrete., It can be applied from 2 in. to 24 in. 24/6 Concrete Mix is ready for foot traffic in 8 to 10-hours and reaches structural strength in 24-hours. Use 24/6 Concrete Mix for general and structural concrete repair, setting posts, driveways, walkways, floors, sidewalks, patios, formed work, footings and more., Using This Cement Volume Calculator. This calculator is based on 6 - 94 Lb. sacks of Portland Cement per cubic yard (3000psi). 27 cubic feet equals 1 cubic yard. Enter number of bags of Portland cement or fraction of bag. Example: One and half bag, Enter 1.5 Round off answer to next even higher figures. This calculator is intended for ..., With a brief look, a 15x30 area at 6 inches deep, you would need approximately 11.83 tons or 8.33 cubic yards of gravel. Concrete reinforcing is also recommended in high traffic areas and medium to large areas. Wire mesh on average costs $0.56 per sq ft and fiber mesh costs $0.13 per sq ft. So for your 450 sq ft area, this may roughly cost $252 ..., If you buy your concrete in 80lbs bags, it will take about 45 bags to equal 1 cubic yard. So, the calculation for an example project with ten 16” (8” radius) piers poured to a depth of 36” would look like this: 10×8” 2 x36” /14850 = 1.55 cubic yards (or 70 bags of 80lbs concrete mix), To determine how many bags of concrete you will need, divide the total cubic yards needed by the yields, at 5 inch thick, for a 10×8 slab you will need 1.23 yards of concrete, so number of 80lb bag of concrete = 1.23 ÷ 0.022 = 56 bags, No. of 60lb bag = 1.23 ÷ 0.017 = 73 bags and No. of 40lb bag = 1.23 ÷ 0.011 = 112 bags. , 80lb is the most popular bag size of QuickCrete premixed concrete.. You will need 45 bags of concrete mix to make a cubic concrete yard.. And that 80-pound bag of 36.3 kg of substantial mix yields about 0.60 cubic feet (17 liters) of concrete.One cubic yard contains 27 cubic feet of concrete. If you divide 27 by .60, that equals 45 bags. One 80lb bag of the quick-rate concrete mix will yield ..., There are 188 bags of 80 pound premix concrete are required for 15×15 slab at 6″ thick. Using pre-mixed bags to cover 15×15 (225 sq ft) at a depth of 6″, the estimated cost is $658 (188 × $3.50 = $658). If you have a 15×15 slab with 4 inches thick, you would need 2.75 cubic yards or 74.25 cubic feet of concrete., Typically, concrete strength ranges from 2,500 PSI to 5,000 PSI, though there are stronger mixes for specialized applications. For many home projects, 2,500 to 3,000 PSI is enough to get the job done. For load-bearing or heavy-traffic projects, 3,500 PSI or higher is a good choice., You can also type the area directly into our paver sand calculator. Decide how thick the layer of sand will be. Let's assume a depth of 1 inch or 1/12 ft. Multiply the area by depth to find the volume of sand required: V = 161.5 ft² × 1/12 ft = 13.458 cubic feet., Using a concrete calculator is an easy and efficient way to determine how many bags of concrete you need for your project. The calculator takes into account the size of your project and the thickness of the concrete to give you an accurate estimate of the amount of concrete you’ll need. By using a concrete calculator, you can save yourself ... , Use our free online Premix Concrete Calculator to calculate exactly how many premix concrete bags you should buy for your concrete project. Just enter in the desired height, width, and thickness of your concrete project and then press the calculate button. The free concrete calculator will tell you exactly how many 40 lb, 60 lb, or 80 lb bags ..., Step 4:- to determine how many bags of concrete you will need, divide the total cubic yardage by the one bag yields, as you know premixed bag of concrete available in 40lb, 60lb & 80lb. 40lb bag of concrete yields about 0.011 cubic yards, 60lb bag of concrete yields about 0.017 cubic yards and 80lb bag of concrete yields about 0.022 cubic yards., For example, if one 80-pound bag of concrete mix yields 0.6 cubic feet, you can calculate the number of bags required by first converting the volume in cubic yards to cubic feet (1 cubic yard = 27 cubic feet) and then dividing the total cubic feet by …, At 4 inches thick, for a 4×4 slab you would need approximately either 9 80-Pound, 12 60-pound, or 18 40-pound bags of premixed concrete. If you measure in yards, 0.198 cubic yards (or 5.33 cubic feet) of concrete will be required. Let’s do calculation and proceeds following steps: 1., As per general practices, generally you will need approximately 86 bags of 60lb (pounds) of premixed concrete for a 10×12 slab at 4 inches thick, 109 bags of 60lb at 5″ thick, 131 bags of 60lb at 6″ thick, 66 bags of 60lb at 3″ thick, and 44 bags of 60lb at 2″ thick. How much concrete do i need for a 16×20 slab., As per general practices, generally you will need approximately 72 bags of 60lb (pounds) of premixed concrete for a 10×10 slab at 4 inches thick, 91 bags of 60lb at 5″ thick, 109 bags of 60lb at 6″ thick, 55 bags of 60lb at 3″ thick, and 37 bags of 60lb at 2″ thick., At 2 inches thick, for a 3×6 slab you would need approximately either 5 80-Pound, 7 60-pound, or 10 40-pound bags of premixed concrete. If you measure in yards, 0.11 cubic yards (or 3 cubic feet) of concrete will be required. Let’s do calculation and proceeds following steps: , Just divide the total weight needed by the weight in each bag. Example: The coop slab needs 6,666 pounds of dry concrete. You found a good price on palletized 80-pound bags of fast-mix concrete. Dividing 6,666 by 80 produces the rounded up number of 84. So, for the slab, you need 84 bags (or two pallets) of 80-pound concrete., You can use a concrete slab calculator to find the volume based on the dimensions of your slab. Input the bag size: Enter the size of the concrete mix bag in pounds (e.g., 60 or 80 pounds). Input the bag yield: Enter the yield of the concrete mix bag in cubic feet (e.g., 0.45 or 0.6 cubic feet). Calculate the number of bags: Click the ...