How much rebar do i need for a slab

How much rebar do i need for a slab. 35 ft. For more help calculating how much rebar in footings you need, try this rebar calculator. Step-4: Rebar Calculation Process Of The Slab Panel-A 4. Ridges in the surface of the rebar allow the concrete to adhere to it and create one solid structure. You get 1. But, all poured concrete walls need 2-3 horiztonal bands of rebar. Use 2” rebar chairs to support the rebar in the center strata of the pad. The total weight of concrete that we need is 942. Rebar in a Wall ; Rebar in a Circular Slab ; Rebar in an Irregular Slab; Rebar in a Circular Slab; Rebar Example: Let's suppose the total length of the rebar is 940 feet, the unit length is 30 feet and the unit price of the Rebar is $6. For each additional 20 foot increase of the wall Rebar is typically available in lengths of 10, and 20, feet. Check for level on all sides. Suspend the rebar and mesh above the rocks by placing pieces of scrap wood underneath them. Keep the metal away from the edge of a concrete pour. Pour a few feet of concrete, heaping it slightly higher than the forms. yds. It is not necessary to have a rebar in a concrete slab for a hot tub, but it is recommended. Rebar should be 3 inches above the dirt. If your wall is over 40 feet long it will add 2x the amount of overlap required. Provide the required spacing and diameter of the rebar. This spacing recommendation depends on factors such as expected loads and local codes. Rebar will hold a force in tension. You will get 1,280 inches or 106. After that, your 4″ concrete slab is ready to use. A 4-inch-thick slab cast on the ground and in permanent contact with it will float and rebar is not required. 6" slab would be $1575. Consulting structural design guidelines or a professional engineer is recommend for specific projects. Rebar—the common term for the metal bar used to reinforce poured concrete—must be embedded to the proper depth (known as cover) in order to provide the proper strength. Once you input these values, you will have your grid length dimensions, it’s that easy. For our example of a 12’x14’ shed, I’ll use a 4” thick slab with a double thick perimeter. Fiber and welded wire are only used for shrinks cracks, non structure cracks, cosmetic cracks. SLAB THICKNESS: W MIN. 1. Then add 10 percent to allow for spillage and slab depth variations to help determine the concrete cost per yard. Gap your outcome by the dispersing estimation: 180/14 = 12. I'm confused - I know some of the code can be loosely translated, but horizontal rebar in poured concrete floors is black and white - it needs to be there. The type of chair will essentially determine how much it will cost. 52 kg). 2. Want to know how to calculate reinforcing mesh for a concrete slab? For 28 years our The minimum size of rebar for a 6-inch slab is 1/2-inch diameter, but the size may need to be increased depending on the important factors. Hello, I plan on using #3 rebar in an 18″ grid pattern on 2″ chairs for my garage and basement slabs (4000 sq ft @ 3500 psi/Fibermesh) and was wondering if I space the chairs at 18″ or can I go to 36″ spacing?. It’s a time-saving solution that eliminates the need Apr 26, 2024 · We need 6. Also, it might be a good idea to put extruded polystyrene insulation under the slab if you want to heat it during winter. 47 figure to 2. Big box retailers will sell smaller pieces in 10’ and even 2’ lengths for smaller projects, but a 20’ length is the most economical. It is the number of slots for reinforcement across your foundation. Aug 1, 2023 · So to make sure that the rebar creates a hinge point rather than busting apart the existing slab, he installs 3/8-in. We assume a 5% loss in wastage and spillage. am I wasting the $40 of rebar for that size of a slab? All the slab will hold is a set of steps, the steps are wood, two steps high, approx 48" x 32" and weigh almost nothing. 63. 36/30) Cost of Rebar = $199. 28084 feet The dimensions of your shed and the thickness of the slab determine how much concrete you need. Generally, spacing ranges from 12 to 18 inches. 5)Install anchor barrier, rebar and form boards. I was going to place 3/8" rebar in a foot square grid, but . There are multiple combination and boxes that can provide over 500 units Rebar is placed horizontally and vertically in the wall, in a grid pattern. And the rebar details of (1) is 10mmØ @ 8″ c/c. Oct 8, 2018 · Rebar Support Cost. Aug 29, 2021 · You need this measurement to be in feet, so divide 1,120 by 12, which equals 93. 6)Pour your concrete, set wall, or container anchors. have been designing and producing the world’s strongest rebar products. Use ¾” washed and screened gravel, then compact it to level. It's not that much more than 3000. A 4 Jun 27, 2023 · Build the Form. Nail pieces of 2-inch-by-10-inch lumber together. Honestly, one of the best things you can do is to make sure that the guys who do the concrete put chairs on the rebar. Nov 15, 2021 · Most floor and concrete specifications dictate that the slab thickness should be at least 4 inches thick and be able to handle at least 3000 psi. A box with 100 chairs costs about $60 and a 50-pack is around $30 or $35 per box. This will translate to $500-$600 for a 500 square foot area. If youre budget-conscious, a slab foundation can be a great fit because it’s often the least expensive foundation option. 5 to determine you will need 120 feet of rebar. Lay Out Your Rebar: Position your rebar in the formwork according to your spacing and depth requirements. Mar 25, 2024 · The most commonly used rebar sizes for slabs up to six inches thick are #5 and #4. Remember that you will also need five pieces of 20-foot rebar for the vertical runs. Jun 7, 2023 · Now, if your foundation is 32 inches, this means that you need to multiply those 32 inches by the 35 slots, which equals 1,120 inches. 5 cubic yards. above the gravel with small globs of concrete while pouring the sidewalk. There should be 1 1/2" of concrete over the rebar. You'll also need vertical rebar hooks protruding at least 6” into the footing and out at least 18” every 48”, or less. When using F72, you typically want to pour your concrete at around 4 inches thick because it will compress slightly over time once there Multiply the measurements together to calculate the square footage of the area. In light-frame construction bearing or nonbearing walls, shear strength of concrete anchors less than or equal to 1 inch [25 mm] in diameter attaching sill plate or track to foundation or foundation stem wall need not satisfy 17. Raise the form sides 1/2-inch to create a slab that is a full 4 inches thick. 3 cu. In more severe exposures (such as salt water areas) as much as 3" of cover may be required. Standard Data Taken. 47 cubic yards of ready-mix concrete. Apr 17, 2017 · I'd like the CMUs to be tied into the patio slab with rebar. Once you enter the length, width and depth of the slab, Lowe’s concrete slabs calculator estimates the number of 80-lb bags of concrete you’ll need. Prepare Your Rebar: Measure and cut your rebar to fit within your formwork. Thicker rebar is less likely to bend, which makes it more likely to bust apart the slab. For a 400 square foot slab, the man hours required to finish a two-car concrete garage slab is about 13 hours. The main reinforcement of the slab panel “A” is marked as (1). Labor Costs. Hold the mesh 2 in. Don’t shovel concrete; pull it back or push it forward with a steel rake. 8 m 3) of cement, and our producer sells cement in bags weighing 60 lb (25 kg) with a density of 150 lb/cu ft (2400 kg/m 3). With a 8'x'8'x4" slab you are going to need less than 1 yard of concrete. The ideal spacing for these bars is typically around 16 to 20 inches on center, again depending on the expected loads and local building codes. Q: How much cover is needed over reinforcing steel in cast-in-place concrete under ordinary circumstances ? The 1971 ACI Building Code requires the following minimum amounts of cover, in inches: Cast against and permanently exposed to earth: 3". A 12-foot two-by-four and an 8-foot two-by-four on each long side. For some projects, you may want to know the volume of concrete you’ll need to pour. However, it is important to note that specific projects may have different requirements based on factors such as slab thickness Aug 14, 2023 · To determine the amount of concrete for 1 square foot, you need to know the thickness of the slab. Using our rebar weight calculator is straightforward. Mar 3, 2024 · Here are the key steps involved in installing rebar for concrete slabs: Preparation: Prepare the site by excavating, leveling, and compacting the subgrade to provide a stable foundation for the concrete slab. 2-Bar Footer Stand (928) 2" Steel Mesh Chair (944) Length of Slab (feet) Width of Slab (feet) Rebar Spacing (inches) Estimate. They cannot hold a load factor. 3. As well as that, the calculator will also tell you The amount of rebar you need for a slab will depend on a number of factors, including slab size, concrete type, soil type, intended use and local building code requirements. For a 4 inch thick driveway, you should use #3 rebar with minimum 18 inch centers. Rebar may be smooth or have ribs to better fasten in mortar; ribbed is most common in home building. Next, divide the total square footage by the size of the rebar. However, this is the absolute minimum and applies only when there is no load on the concrete slab at all. Rebar Spacing for Concrete Slab. For example, if you are using ½ inch rebar, divide 60 feet by 0. Build the wooden forms for the outside of the concrete slab using your string marker as a guide. SLAB WIDTH : L MIN. So now everybody in the room repeat after me. Can You Put Too Much Rebar In Concrete. 30 GPa. The curing of concrete seals it off from oxygen, which is what causes the rusting of steel. Includes 10% waste / lap. Measure surface area and depth. Other complex systems can cost over $15 per each chair but they are more durable and will not tip over. 3(a) through (c) when the design strength of the anchors is determined in accordance with 17. Generally speaking, when pouring a 6 inch slab, #4 or #5 rebar is used. For example, if the area is 10 feet long and 6 feet wide, the square footage is 60 feet. Concrete patios typically need rebar because they are shallow and depend on the stability of the soil underneath. This is necessary as the two surfaces are on two different grades. #5 Bars, 5/8-inch wire and smaller. In total, your foundation will require 746. Concrete strength also comes into play, but most slab concrete is around 3000 to 4000 psi, so it's not a major factor. Fill in the price and single rebar length that you will buy at your supplier: rebar price = €2/m single rebar …. In such applications, using size 3 and 4 rebar is common. Our rebar weight calculator is a handy tool that allows you to efficiently calculate the weight of rebar for your projects. yards) so $1050 for a 4" slab. To calculate your concrete needs multiply the length by the width of your shed, then multiply by the thickness; remembering to change inches to feet (4 The size rebar you need for a 4 inch driveway depends on a few factors, such as the weight of any vehicles you may drive over it, the load of any other items that may be stored on it and the soil conditions of the area. 35 and $6. For over 25 years, T. However, if the concrete slab is meant to be the footing of a small structure, #4 rebar with a diameter of 1/2-inch should be used. Reinforcement won't prevent cracks, but it will help hold them together if they do occur. Slab Volume 6 m³. 1(c). Jul 17, 2017 · Use 10-by-10 welded wire mesh inside the area. How Much Gravel Do You Put Under a Concrete Slab? You will need 3 inches of gravel under a concrete slab that is 4 inches thick. 87 (round up to 13)Add one rebar to your outcome: 13 + 1 = 14You’ll consequently require 14 lengths of rebar. Aug 17, 2015 · 2. 4. The specs on the Owens-Corning pink bar - 46. SLAB LENGTH : R REINFORCEMENT SIZE (SEE NOTE 1 & 2) S1 & S2 REINFORCEMENT SPACING (SEE NOTE 3) D ANCHOR DIAMETER : I ANCHOR LENGTH : GP‐7 SERIES: 12" 48" Min: 12" Wider Than OA Width of Lift: 8 ‐ #4 ‐ Main Bars 21 ‐ #4 ‐ Temperature Bars : 6" ‐ Long Bars 8" ‐ Short Bars : 3/4" 5" XPR Feb 6, 2023 · According to HomeAdvisor. Nov 7, 2023 · Table of contents. 28. The gauge, or diameter, of the rebar is selected based on the purpose and the load-bearing requirements of the structure: For standard residential concrete slabs, #3 (3/8 inch diameter) to #5 (5/8 inch diameter) rebar is typically used. For an 8-foot by 8-foot slab that’s 6 inches deep, this works out to $1,440. For others like me, who are 'metrically impaired' carbon steel modulus is 200 GPa. Oct 8, 2020 · Rebar Supports Ensure Proper Concrete Cover. The #3 rebar should also be placed in a Prepare Your Rebar: Measure and cut your rebar to fit within your formwork. To determine how many rods you need based on these available rebar lengths, you can divide 640 by 10 (64 bars) or 640 ÷ 20 for 32 bars, the amount you choose will depend on your desired length. As a minimum, #4 rebar (1/2 inch) is spaced vertically at 36 inches on center, continued to within 8 inches of the top of the wall, placed on the tension side -- the inside face -- of the wall. Do patio slabs need rebar? Whether patio slabs need rebar or not depends on the size of the slab, the soil conditions, and the climate of the area. Hold the wood in place with stakes. Ever wondered what size steel reinforcing mesh you need to put into a concrete driveway, house slab or patio area? Take out the guesswork, and the “she’ll be right” approach to laying the perfect slabs every time by using a simple formula. Sep 4, 2018 · The slabs will be 5'w x 4'd x 4"to6" thick (6" at edges, 4" in centre). What is Rebar? How to Calculate Rebar Needs. A yard of concrete is going to cost you roughly $150-$175 dollars, delivery is going to be $125 to $200 (expensive with a short load), and they might charge for concrete left on the truck if you do not have a place to dump and wash out. 2. With 3-inch screws, attach the two-by-fours to the stakes: A 12-foot two-by-four on each short side. For optimal strength, the rebar should overlap (or ‘lap’) by an amount equal to 40 times the diameter of the bar. The most common size is 1/8″ thick (4 mm) and 6″ long by 6″ wide (150 mm x 150 mm). 1/2" rebar in both directions is 1 inch high. 6 feet of rebar. 88 GPa to 60. Jun 8, 2017 · So vertical rebar may not be required with 10" thick walls, 9' high, 6' backfill. Rebar Calculator. 3600 psi. Do I Need Rebar in Mar 29, 2023 · In order to calculate this, you need to input the length and width of your slab. 6″ Minimum Thickness is best for 11,000 lbs – 15,000 lbs lifts. The ultimate cost will be determined by the size and thickness of the slabs, as well as any additional reinforcing like as wire mesh or rebar. 1 of the 2021 International Building Code (IBC) specifies that the thickness of concrete floor slabs supported directly on the ground shall not be less than 3 1/2″. In this article, we will examine the importance of reinforcing concrete with rebar and the proper steps Aug 29, 2019 · Calculate the volume you need in cubic yards. rebar instead of 1/2-in. Generally, a #4 (1/2″) diameter reinforcing bar with a minimum grade of 40 is used for standard residential slabs. It means that it is 6mm in diameter. By contrast, a crawl space costs about $7 per square foot and a basement about $18 per square foot. But if the slab is a patio or driveway, it will need rebar. The #3 rebar should also be placed in a Calculate the amount of Rebar needed for reinforcing a wall. 7) Level the concrete. Multiply the length (10 ft. Low Cost. ) and divide it by 27 (the number of cubic feet in a cubic yard). If it is a commercial application or if the slab is intended to carry a heavier load, then the size of the rebar may need to be larger, such as #5 or #6, and the spacing may need to be Nov 1, 1974 · By Concrete Construction Staff. ) by the depth (. Compare that to the tensile strength of Grade 60 rebar, which is 60,000 psi. In inches the diameter of a #5 rebar is 5/8″ and that of a #4 rebar is 1/2″. Jun 27, 2023 · Build the Form. Jul 26, 2022 · Dependable concrete slabs are used for almost every foundation project, indoor or outdoor. Step 15. How to calculate the rebar quantity from concrete? Sep 14, 2023 · 1. Finally, let the concrete slab dry for 2 – 3 days before walking on it or building anything on top. This calculator assumes that you are using 20 foot long lengths of Rebar. Feb 11, 2014 · The Weight of Rebar in a Slab calculator computes the total weight Concrete Slab with one Rebar Grid mat of reinforcement bars (rebar) needed for a concrete slab based on the dimensions of the slab and the spacing and size of the rebar. Determine the rebar gauge. Generally, a slab will require between 2 and 10 percent of its total volume in rebar for reinforcement. May 12, 2022 · Step 2: Set the First Sheet of Wire Mesh. This is equivalent to roughly $62-$76. Does a concrete sidewalk need rebar? Feb 11, 2022 · What is the price of a concrete slab? Most homeowners pay between $5. What size rebar should I use, and how big a hole do I need to drill? If I use 1/2" rebar, can the hole be 5/8"? 3/4"? Does it have to be 1"? etc. The ground shifting can cause concrete to crack and become The minimum size of rebar for a 6-inch slab is 1/2-inch diameter, but the size may need to be increased depending on the important factors. This is essential to know how much Rebar for the concrete slab is required. If the concrete slab in question is meant to be the footing of a house, then #5 rebar with a Feb 23, 2024 · How do you determine the correct spacing for rebar in a concrete slab? The correct spacing for rebar depends on the load requirements, the thickness of the slab, and local building codes. 3+1+1 1/2" = 5 1/2" slab thickness. Rebar spacing calculator is perfect to indicate how much Rebar is needed. Exact Spacing. The rebar will help to reinforce the slab and make it more sturdy, which is especially important if the hot tub is going to be used regularly. The primary issue with a 4" thick slab is that providing steel with 2" of concrete cover (which prevents corrosion) is difficult (must be precisely in the middle), or impossible if it's only "around" 4" thick. Use wire mesh for driveways that are 4 to 5 inches thick, and rebar for those that are 5 inches or more. Multiply the measurements together to calculate the square footage of the area. The cover required is 2 inches for foundation walls, or walls exposed to Sep 4, 2018 · The slabs will be 5'w x 4'd x 4"to6" thick (6" at edges, 4" in centre). Length 600 mid 300. You can use this estimating tool as a concrete bag calculator. From rebar chairs, wire mesh chairs, and footer stands, Hercules is a name concrete contractors all over the country use every single day. He also installs the rebar more than halfway down from the top of the slab and that the rebar is drilled as deep Jan 14, 2024 · 6 inches. 8)Remove form boards. Lay your first sheet of mesh down on top of the slab runners (if you are working on a slab on grade simply lay the mesh on the ground). Heavy Loads. For footings that are poured before the slab, two #4 horizontal pieces of rebar are required – one 3” from the top and the other 3” from the bottom. More gravel is better, but 3 inches is the minimum amount of gravel you should have with a 4” slab. concrete is good in compression but not tension. A #5 piece costs around $20 for a 20’ length. $ (Enter Cost per Bar) Approx Weight 213. Nov 22, 2018 · According to rebar spacing guidelines, the ideal spacing for rebar in a 4-inch slab is typically around 18 to 24 inches on center. 28 cubic yards (4. When using #4 rebar for a 6-inch slab, standard practice is to have 1 piece of rebar centered in the middle of the slab, as well as 2-3 pieces of #4 rebar spaced 12 inches apart around the edges of the slab. For example, a 4-inch-thick one-car concrete driveway measuring 10 feet wide by 20 feet long will require approximately 2. Rebar is recommended on concrete measuring 5 – 6 inches thick. You will need a #3 rebar for a 4-inch slab. Width 600 mid 500. The labor for a 500 square foot is averaged at $280-$345. For example, a slab that is 6 inches thick might have rebar marked as size 6 or 3/4-inch. Jun 5, 2023 · If the slab in question is just for a patio or a similar purpose, #3 rebar with a diameter of 3/8-inch will do just fine. J. #6 - #18 bars. Patio slabs are used in pathways. Do you need rebar for a 4 inch concrete slab? No, you do not need rebar for a 4-inch slab of concrete on grade. If your footings are 16 inches thick, multiply 16 by 80. Slabs for septic tanks may require the use of both welded wire fabric and rebar. Estimate the number of rebar pieces. rebar-rebar spacing = 40 cm, edge-grid spacing = 8 cm. Enjoy the Rebar Calculator for Slab. 4″ Minimum Thickness is best for 8,500 lbs – 10,000 lbs car lifts. Hercules will save you time and money, while ensuring that your concrete pour is always meeting code. Aug 16, 2017 · 4)Dig and install conduits for electric, cable, water and septic (even if you do not think you will need them, they can save you time, energy and effort if later on you decide that you do). Harris Co. com, a concrete slab typically costs between $4 and $8 per square foot ($6 on average), including materials and labor. Neither rebar nor mesh rust inside the concrete like one might suspect. The spacing of the rebar is typically 12” on center for most residential applications. May 23, 2006 · Rebar counteract this force. Click on Calculate button to get the total weight of the steel rod in the slab. 59 per square foot. As per the present market rates, the average cost of concrete for a 400-square foot slab, the typical size for a two-car garage, ranges between $583 and $637 or between $1. Feb 5, 2022 · So you have to divide 320 by 4, which equals 80. This video series w Apr 15, 2022 · Jason | April 15, 2022. The spacing of the rebar should increase to between 18 and 24 inches apart for slabs between four and six inches thick. 17 per square foot, or $113 to $126 per cubic yard, for both supplies and installation on a conventional concrete slab. So, there you go, we need 17 bags of cement. Jul 17, 2023 · Reenforcement makes concrete perform better. The tensile strength of concrete is typically taken as 10 to 15% of the compressive strength, so only about 400 or 500 psi. For each additional 20 foot increase of the wall Apr 16, 2018 · Come learn how you can build your own shed! In this video I cover all you need to know about rebar for your concrete shed foundation slab. #4s on 12" centers. You need this measurement to be in feet, so divide 1,120 by 12, which equals 93. The apron is between 2 to 6 feet wide and runs the entire width of the driveway and the garage door. 50 per hour. 46 and $1. NOTE: Section 1907. Following the process, you can calculate rebars for the rest of the panels. Mesh comes in different sizes, but the #5 rebar (5/8" in diameter) fits nicely underneath it for increased sturdiness and resistance against earthquakes and other pressure. 1: Calculate The Main bars. Using more than recommended will be uneconomical. 3. Larger areas, lower loads, and higher seismic zones How Much Does Rebar Cost? A 20’ piece of #4 rebar – which is ½” diameter – costs around or just above $15 at the time of writing. Typically, I figure $1000/truck load (10 cu. The average concrete slab cost is $3,600 to $7,200, with a national average of $5,400. the calculator will give you the default spacing values (for rebar – rebar it’s 40cm, and for edge – grid it’s 8cm). Rebar chairs, or similar devices, are used to prop up the rebar, separating it from the concrete form or subbase, so that the What size rebar do I need to reinforce a concrete driveway? To reinforce a 4” concrete slab or driveway with steel rebar, determine the grid spacing and rebar size – #3 or #4 in a 12” to 18” grid. Generally, a 4-inch slab will not need a rebar if the slab is used for a normal purpose. May 21st 2019. What is Rebar? Rebar beams are reinforced steel rods cut to various dimensions and inserted into concrete slabs or blocks. Feb 18, 2024 · Rebar Spacing. As of 2020, a monolithic slab foundation costs on average about $4–$5 per square foot. Since concrete is usually ordered to the nearest ¼ to ½ cubic yard, you would round the 2. Sep 2, 2020 · No, you do not need rebar for a 4-inch slab of concrete on grade. 40 x 6000 Lengths. Input the number of mesh in slab rebar. The minimum size and grade of rebar for slabs depends on a variety of factors, such as the thickness of the slab, the loads it supports, seismic requirements and other factors. 20 per square foot. 53 lb (427. If your wall is over 20 feet long it will add the amount of overlap required. For driveways and patios, #4 (1/2 inch diameter) rebar is a common choice. In addition to estimating how many bags of Jan 17, 2019 · Dump the concrete into the forms. Rebar Placement: Place the reinforcement according to the design specifications, ensuring proper spacing, alignment, and clearance from I’ll show you the rebar calculation process of the slab panel “A”. Begin in a corner making sure that you maintain the specified clearance for your project. That’s why thicker slabs of concrete are better suited to steel reinforcement. Calculate the amount of Rebar needed for reinforcing a wall. MIN. 3 feet of rebar. Simply input the dimensions and spacing of the rebar, and our calculator will provide you with the total weight. ) by the width (10 ft. I get that the gist is to drill a hole in the slab, put rebar in the hole, and then fill it in with concrete to anchor the rebar into the hole. , or 4 in. 1 kg. Sep 16, 2022 · Commonly called “rebar,” these 1/2-inch-diameter steel rods are embedded in the center of the slab to create a grid that extends lengthwise and crosswise to help the concrete better resist pulling and bending forces. I can’t seem to get a straight answer from the concrete guys I know, they all use wire mesh and say the rebar is useless, but Aug 21, 2023 · As I recall, the modulus of elasticity of fiberglass rebar is much lower than steel rebar. So, pathway slabs go under heavy loads continuously. For example, for a 4-inch thick slab, you would need about 0. Total Length 240 m. 9)Fill Dec 3, 2023 · The concrete garage apron is the concrete slab in front of the garage door and is used to transition the concrete or asphalt driveway onto the garage concrete floor. Nov 7, 2023 · 2. Rebar or reinforcement is expensive. 8 inches. Reinforce concrete for a 5-inch thick concrete slab: For a 5-inch thick slab, #4 (1/2-inch diameter) rebar is commonly used. Additional concrete requirements will vary by lift. . The density of Steel Rod = 7850 Kg/m 3 1 meter = 3. 5. The total cost for installing rebar is $1-$1. FAQs Our online concrete calculator can help you do the math. Concrete reinforcement can be either wire mesh or ½-inch (#4) steel rebar. 33 cubic feet of concrete per square foot. I agree with dik - I don't think fiberglass rebar does much for a slab on grade. For a 10-foot by 10-foot slab that’s 6 inches deep, the cost is $1,800. When using F72, you typically want to pour your concrete at around 4 inches thick because it will compress slightly over time once there The size rebar you need for a 4 inch driveway depends on a few factors, such as the weight of any vehicles you may drive over it, the load of any other items that may be stored on it and the soil conditions of the area. Grid length = Slab-length – (2 * edge-Rebar-spacing) The total length needed for Rebar is measured vertically and horizontally. Cost of Rebar = Total Cost (Unit Cost/Unit Length) Cost of Rebar = 940 (6. ug jg gn yj jw is bm lb ue wx