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How many 80lb bags of concrete per fence post?
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How many 80lb bags of concrete per fence post?
60m, 12mm Diameter Deformed bars for both horizontal and longitudinal bars60m, 12mm Diameter Deformed Bars. The calculator will indicate the number of 50 lb. Compact and level the gravel using a post or 2 x 4. It simplifies the calculation process by allowing users to input their desired post hole depth, dimensions, and the total. How many concrete bags equal a yard is based on volume. Please enter the dimensions of the hole(s) Dig an extra 10cm and fill with drainage gravel Back. 5 94-pound bags of cement, 17 cubic feet of sand, and 18 cubic feet of gravel. 396 cubic feet (or 25 x 60 lb bags) of concrete. Learn how these fascinating systems work and why this specialized fe. For 30 cubic feet of prepared mortar, you will need approximately 37 80-pound bags Quikrete 20 lb. Example Calculation: Suppose you have a Sonotube with a diameter of 12 inches, a height of 5 feet, and you are using 80 lb concrete bags. Most fence post holes will need between 1 - 4 bags of concrete to securely hold the post in place. bags have 80 on a pallet. Additional Tips for Post Installation. You will need 45 bags of concrete mix to make a cubic concrete yard. Now that you have the hole dug and your post set up, you should brew up the mixture of the resin. ) For DIaGonallY BracED cornEr assEMBlY Northern states you will need 11-12, 80lb bags of pre-mixed concrete (assuming 47" frost line. Click the "Calculate" button. 4000 psi average compressive concrete strength. enter the length of the fence in feet and inches. Tip: Additionally, you can taper the top of. To get the fast-setting concrete to begin going from a powder to a solid block, you must add in the right amount of water. High-strength 4,000 psi concrete for structural applications and durability. Just follow these instructions to learn how to fill potholes. 6 blocks filled with each 80lb bag. 40, 60, and 80 lbs bags99 per bag. 5 x 80 lb bags of concrete to fill it one foot, while to fill it a 4 foot, you'll need about 3. How many bags of concrete per fence post? You need two 50-pound bags of concrete per fence post that is 6-foot tall and 4×4 inches wide. by Jeff | Aug 16, 2023 A pallet of Quikrete contains 42 80 lb. My experience shows about 1-2 bag. As PSI increases, so does strength and price. A bag of cement weighs 94 pounds. Delivery exclusions apply. 01 m3 in volume The amount of postcrete needed per post depends on 5 key factors: the post’s intended use (s), post material, post height, soil conditions and environmental changes. Lowe's Concrete Calculator for slabs will help you estimate the number of 80-pound bags of concrete mix you need for any size slab. And, of course, your fence length will affect the number of posts you’ll need. As of writing this, Rocket Concrete can deliver 2 yards of ready-mix concrete for $420, before tax. The Post Hole Concrete Calculator is a user-friendly tool designed to help users efficiently determine the required number of concrete bags, total cost, and water usage for fence post holes of varying depths and dimensions. Often exclusively, different types of mortar mix do come in 50 lb Also Read: How Many bags of concrete Needed per Fence Post? 3. The weight would then total to around 3200 pounds per pallet14 kilograms bag of concrete is the typically smallest bag of concrete mix commercially available. com Feb 12, 2024 · Follow these steps to calculate how many bags of concrete per fence post you’ll need. Exceeds ASTM C387 standard specification for packaged, dry, combined materials for mortar and concrete. 3 kg of substantial mix yields about 0. bags - 64 per pallet. The total weight of concrete that we need is 94252. 3" under each fence post. 3 cubic feet, a 50-pound bag yields 0. concrete are what’s needed to set a mailbox post. It is mixed in the bag to produce expanding foam for supporting and backfilling fence, mail box, gate and signage posts. First, you need to decide on the spacing between each fence post. It's likely it emerged as a simple, easy-to-remember guideline for those new to fencing projects. The 1gal of H2O per bag was just right for a workable. A 50-pound bag makes about 0. Determine the volume that the post will occupy in each hole. An approximate (a tad less) cubic foot of Masonry Cement weighs 70# (N) or 75. FOR RAPID SET - ADD WATER & HALF THE CONCRETE. Here is how to calculate the required number of bags: First, you need to calculate the volume of the post hole96344 cubic feet or 0 The second step is to divide the volume by the yield. Slightly mix the contents to ensure the post fixing mix is wet. To calculate the total number of bags needed, you would multiply the number of fence posts (10) by the weight of each bag (60 pounds). They can be used to create a terraced landscape, prevent soil erosion, and even provide additional seating. The Fence-All standard calls for the concrete in post holes to stop three to six inches below ground level Sunlight damages concrete, and this. However, they are packaged in a plastic bag, so the inside was intact. To convert cubic feet to cubic yards, divide by 27: (00222). Useful Article for You. The top few inches of concrete don't add much strength because there is little sideways resistance in the soil in the top few inches. In US, concrete are sold in bag concrete for small projects, popularly known as premix bag. 017 cubic yards, 50 pound bag yields 0. For loose or sandy soil, using a tube form is recommended (left) Pour 6" of gravel or crushed stone into the bottom of the hole. There is different formula for different types of hole depending on their shape 50 lb. A special blend of fast-setting cements, sand and gravel designed to set hard in 20-40 minutes. the size of your post (assuming they are square) in inches. Editor’s note: This is a re. Simplify your fence or deck construction. Northern states you will need 7-8, 80lb bags of pre-mixed concrete (assuming 47" frost line. Indices Commodities Currencies Stocks Translucent concrete provides sturdy support to a structure without obstructing light. Line up any stakes in between that might be out of line Dig holes for fence posts. How many Bags of Concrete do I need for a Slab Civilwala how much water for a 80 lb bag of concrete,concrete,how much water for a 60 lb bag of concrete,how much water for concrete,how much does a 80lb bag of concre. Block Wall Thickness Blocks Filled per Cubic Yard Concrete/Grout per 100 Block Concrete/Grout per 100 Square Feet Wall Area; 6″ 12093 yd 3: 8″ 100: 112 yd 3: 10″ 80: 13 yd 3: 12″ 65: 173 yd 3 How many bags of concrete does it take to fill a sonotube? 16 cubic feet / 0. The average deck footing built to current building code is 18 inches in diameter x 36 inches deep worth of concrete. I calculated that I need 21 bags of concrete per fence post - this seems a lot to me! Could someone double-check my calculations? Hole area: 05 m x 001 m2 (01 m) Hole depth: 0216 m3 (001m x 0. bags of fast setting concrete mix per fence post. Use a level to ensure the post remains straight and aligned. I'd plan on one sack per post if you're sinking the post the full 3' in the hole. Working. Ready to make something? Learn how to create this concrete pen cup, phone stand and set of drawer pulls to refresh your office design! Expert Advice On Improving Your Home Videos L. j c penney bedspreads 5 x 60 lb bags) of concrete. Typically, a standard bag of ready-mix concrete is around 80 pounds, which, when mixed with water, yields approximately 0. 8m in length, use two 20kg bags Calculator. It takes approximately five bags of 80-pound concrete to fill such a hole. 5cf), then buy enough bags of concrete for that amount. Another option for securing posts is a polyurethane foam, such as the bestselling Sika fence post mix. 5 feet deep, you'll need approximately 0. Odisha Cement News: This is the News-site for the company Odisha Cement on Markets Insider Indices Commodities Currencies Stocks I do everything I can to avoid using plastic bags—I once bought several frozen groceries and opted to carry them home in my arms, like they were a baby. Backfill the hole with soil or gravel to provide additional stability. (All calculations are rounded up to the next highest whole bag). Fence Post Concrete Calculator. Concrete can be purchased in multiple forms, including in 60 or 80-pound bags, or delivered in large amounts by specialized concrete mixer trucks. Now that you’ve determined the size of the hole you’ll need, you can use the chart below to determine how many 50-pound bags of concrete you’ll need. Determine the volume of space required for each post hole. And, of course, your fence length will affect the number of posts you'll need. 15 cubic feet for every 20 pounds of mix, resulting in a 40-pound bag yielding. To fill a hole this size takes 5 bags of 80lb concrete, but remember, you have to subtract the volume of the post your burying. Diameter of the hole (usually 3x the post size) Depth of the hole The size of your post will be on your quote or invoice. It is the most common size of bagged concrete sold in stores. For a 4-foot (48 inches) tall sonotube with a diameter of 10 inches, you would need approximately 4 x 80 lb or 5 x 60 lb bags of concrete. clemson edu 80 lbs Bag Concrete x (# of posts) # of Single Gate(s) Single Gate Hardware Kit(s). 45 cubic feet, and an 80-pound bag yields 0 This means that in the example above, each post would require about eight 50-pound bags. Perfect for building high rise structures, concrete slabs especially in parking garages and decks, and setting fence posts or poles Can also be used for posts, sidewalks, steps, balconies, benches, countertops and statues. Retaining walls are an essential part of any landscape design. 8m in length, use two 20kg bags Calculator. So, for a 4-inch slab you’ll need 1. When you're installing a fence post, the amount of concrete you need will be calculated based on the diameter of your fence post and how high the post is above ground. Multiply the number of line posts by 0 Add the quantities of concrete for for the two types of posts to find the total needed for the fence installation. 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. Again as above, using a spirit level, make sure the post is upright and in the centre of the hole, adjusting if required. For example, for a 6 foot fence/post, a minimum of 2 feet of post should be in the ground for a total post length of 8 feet Post hole diameter should be at least twice as wide as post. Use for: sidewalks, driveways, setting posts, In general calculate the volume of your footings in cubic feet. 5 yards per cubic foot, so considering how many 80lb bags of concrete in a yard, it will take about 150-200 bags of concrete per yard. Perfect for building high rise structures, concrete slabs especially in parking garages and decks, and setting fence posts or poles Can also be used for posts, sidewalks, steps, balconies, benches, countertops and statues. So a 3 x 3 inch post should have a hole approximately 9 x 9 inches. 37 cubic feet, a 60-pound bag yields 0. Wait four hours for the concrete to cure before continuing construction of. It will be extremely difficult to mix, pour and finish this amount of bagged concrete mix Shop Water Resistant Fence Post Caps; 32 sq ft Flat Wall Paneling; Outdoor Living. The lightweight design makes installation fast and easy Coordinating posts sold separately: line post - model # 73011760, corner post - model # 73011761, end post - model # 73011762. Expanding foam will cost about 25% more to three times more than concrete for filling fence post holes. Feb 12, 2024 · Follow these steps to calculate how many bags of concrete per fence post you’ll need. Slightly mix the contents to ensure the post fixing mix is wet. When you're installing a fence post, the amount of concrete you need will be calculated based on the diameter of your fence post and how high the post is above ground. kohlpercent27s dresses Math not your thing or have any questions about the. Before the posts are buried, it is a good idea to treat the buried port. 25ft/block or about 2. The amount of concrete needed to fill a Sonotube depends on the diameter and height of Sonotube. Consider the shape of the post hole: Round holes. Each 80-pound bag of concrete typically yields around 0 For 4×4 fence posts, you need 1 ½ bags of concrete per hole. A bag of cement weighs 94 pounds. As a general rule of thumb, one 50-pound bag of fast-setting concrete typically fills about 0. Used to set mailbox posts, fence posts and lamp posts without mixing; Pour dry mix into hole and soak with water; Also use for building steps, sidewalks and slabs where rapid set time is required; Exceeds the requirements of ASTM C387; 4000 psi in 28 days; Each 50 lb. Enter 24 as the pipe diameter, 10 as the pipe length, and 145 as the concrete density in the calculator. Periodically check the posts position using your spirit level to ensure that it remains upright. In US, concrete are sold in bag concrete for small projects, popularly known as premix bag. For specific ordering information, please consult the CONCRETE section of this site. This size allows for about 9 bags in a single layer on a standard pallet. Jul 15, 2021 · For reference, a 40-pound bag of concrete typically yields about 0. 66 cubic feet of concrete.
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To calculate the amount of concrete you will need to set fence posts, use this post hole estimator. Typically, a standard bag of ready-mix concrete is around 80 pounds, which, when mixed with water, yields approximately 0. This will more than double the life span of your fence posts. The lightweight design makes installation fast and easy Coordinating posts sold separately: line post - model # 73011760, corner post - model # 73011761, end post - model # 73011762. 3 cubic feet, a 50-pound bag yields 0. Example: the number of 94-pound bags of cement needed for 1 cubic yard of cement is 2538 / 94 = 27 bags Quikrete's or Sakrete concrete mix produces about 0. 00:00 Intro00:14 What kind of concrete should you u. It’s measured in pounds per square inch (PSI). Rock: $95 per cubic metre. According to Quikrete, a 24” deep hole at that diameter would require 4 50lb bags of fast set or 3 (2. The size of the hole for your 4×4 fence post is pivotal in determining how much concrete you will need. I want to figure out how many bags of 40 lb concrete I need to do this. asymmetric dress amazon Unleash the Power of Concrete: How Many 80lb Bags of Concrete in a Yard? Expert Insights Concrete is a building material that has been used for centuries due to its strength, durability, and versatility. A retest of the lows of October could be seen in the months aheadUSCR U Concrete (USCR) has been sinking lower and lower all year. 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. And that 80- pound bag of 36. Exceeds ASTM C387 standard specification for packaged, dry, combined materials for mortar and concrete. I typically figure 2 bags per hole when I am doing posts. Sand Mix - 60 lbs • Type N Mortar Mix - 60 lbs • Fast Setting Concrete Mix - 50 lbs • 5000 PSI Concrete Mix - 60 lbs • Max Strength Concrete Mix - 60 lbs • Instant Post Concrete Mix - 50 lbs • Crack Resistant Concrete Mix - 60 lbs • Stone Mortar Mix - 60 lbs • 4000 PSI Concrete Mix - 60 lbs. 80-lb Fence Post Mix. 6 cubic feet are 80-pound bags. Calculator Example: When filling a 10" sono tube with 314 x (42) x 399 CF / 27 = Please verify online calculator results for all orders with a member of our sales staff. 5) 80lb bags of regular Quikrete. The total number of bags of Quikrete for your job is also shown for 30, 60, and 80 pound bags. 017 cubic yards, 50 pound bag yields 0. To pour a 4-inch slab that measures 1 square yard, use six 80-pound bags of concrete, and for a 6-inch slab, use eight 80-pound bags of concrete. Determine the volume of space required for each post hole. 6 cubic feet of concrete. 6 cubic feet of concrete. Returns both cubic yards and how many bags. bag of Fast-Setting Concrete Mix placed in. How much concrete you use per post will depend on how deep your hole is, which is determined by at least ⅓ of the height that your post is above ground. Split Rail Fence # of Stopping Posts 3 Rail. Fask 2K is an instant fence post foam that is a easy-to-use alternative to using concrete. With this information, it calculates the total volume of concrete required using mathematical formulas based on the dimensions of the holes. This means that if you were to pour the entire bag into a 5-gallon bucket, it would fill up about 0. six flags locations Recheck the post for plumb and brace as needed Pour water onto the dry mix and allow it to soak in. The how many 60lb bags of concrete on a pallet mix have 56 bags on a pallet, and the 40 lb. Spend less effort loading and unloading large trucks with Fast 2K5 lb bag replaces 80-100 lbs of concrete. A 16 inch sonotube requires 0. Method for Setting Fence Posts Start by digging the post hole about 3 times the diameter of the post. This product is for posts up to 1. The amount of concrete you need for a 10x10 slab depends on how thick it will be. As of writing this, Rocket Concrete can deliver 2 yards of ready-mix concrete for $420, before tax. Air entrained to help prevent damage caused by winter's freeze-thaw cycles. One yard equals 3 cubic yards or 2760 cubic inches; one bag of cement is 765 cubic inches. This indicates that approximately 40 bags of Sakrete would be needed to complete the concrete slab based on the provided dimensions and coverage area. Wondering how much product you need to get the job done right? Just enter your project dimensions into our Sakrete and slab calculators to determine how much product buy to complete the job. Dig the post hole, making it three times the width of the post and at a depth equal to 1/3 to 1⁄2 of the above-ground length of the post, plus 6" (right). ) For DIaGonallY BracED cornEr assEMBlY Northern states you will need 11-12, 80lb bags of pre-mixed concrete (assuming 47" frost line. The chart below can help you understand the number of 50-pound concrete bags you’ll need for your project per post. To use this Quikrete Concrete Calculator for square posts just input hole diameter, hole depth and also the number of post holes. For example: A 6′ high fence post 4″x4″ needs a hole 12″ in diameter by about 2′ to 3′ deep. of mixed concrete You will need around one 25-kg bag of pre-mixed concrete to fill a foot height of an 8-inch Sonotube if you use 150 lb/ft³ concrete. , 20kg, 40kg, 80lb) When selecting a concrete bag for construction projects, it's important to consider the size options such as 20kg, 40kg, and 80lb,. If your patio is looking the worse for wear, or if you just want a new look, you can stain concre. Ready-mixed concrete costs on average $108. judas pig real names This bag of mix is enough to cover a 3/4 cu space and only requires you to mix in water before getting started how many bags per 8 inx 8in x 2 ft deep hole using metal posts. Rapid Post, 30 Kg, Multipurpose Easy to Use Concrete Mix, Cement for Fence Posts and Poles Set Fence Posts and Poles in just Minutes! Use SAKRETE RAPID POST, a rapid-setting, concrete material Back when they were actually 4x4's the ratio of 1 bag per 18x8x8" hole was probably right. Line up any stakes in between that might be out of line Dig holes for fence posts. Here are the steps we recommend to get all your ducks in a row:. Many people recommend premixing your concrete for a stronger hold. 6 blocks filled with each 80lb bag. 6 cubic feet, and 1 Yard = 27 cubic feet. Put your post in the hole and dump the cement mix in the hole with water. Place approximately 2” (50 mm) of gravel in the bottom of the hole. It can be used to install fence posts, gate posts, sports posts (e football goal posts) and other garden structures like pergolas and gazebos. 1101) QUIKRETE 5000 (No. Also, read: What Is Bar Bending Schedule | Preparation as Per Bs 4466 | Tolerances as Per Bs 4466 When mixing by hand, form a crater for adding stone under 3 inches (8 cm) to 4 inches (10 cm) of concrete Add approximately 285 qts) of clean water per 30 KG Excavate 6 inches (15 cm) beyond string lines to allow room for. The chart below can help you understand the number of 50-pound concrete bags you'll need for your project per post. A quick-set post concrete, such as Sakrete or Quikrete Fast-Setting Concrete Mix, allows you to add the fence panels approximately four hours after setting the posts. A fence post pounder is an essential tool for quickly and easi.
You can use this concrete calculator to help you determine the number of bags of QUIKRETE® Concrete Mix, Mortar Mix, or Fast-Setting Concrete you will need for the following projects. 375 cubic feet of concrete. 3 cubic feet, a 50-pound bag yields 0. For many home projects, 2,500 to 3,000 PSI is enough to get the job done. Due to a typo, an additional forty 80 – lb bags of sakrete high-strength concrete mix was delivered to our job site on a shrink-wrapped pallet. 4000 psi average compressive concrete strength. check auto gearbox renault scenic High strength 4,000 PSI38 cu Learn more about concrete and cement here in our Buying Guide. Fill volume = core volume per concrete block × number of concrete blocks needed You can use this table to see how many bags you may need to fill one cubic yard of cement: 27 32 42 64. 2m high; Cemix recommends 2 x 20kg bags per post; No mixing required - just pour product in the hole containing the recommended water; 15 minute set time Our Vinyl fence products offer the perfect combination of high quality and low maintenance you have been looking for. Again as above, using a spirit level, make sure the post is upright and in the centre of the hole, adjusting if required. cannock chase council houses available 2 to determine water content. Figure 3 - Footing Details 3D Model. Choose your volume units (e cubic feet) Enter the volume (V) The calculator returns the number of 80 lb bags needed to mix that much concrete. How many bags of quikrete is 80 lbs? One 80lbs bag of Quikrete Concrete Mix will yield approximately So it will take 45 bag to equal one cubic yard of concrete. by Jeff | Aug 16, 2023 A pallet of Quikrete contains 42 80 lb. How Much Concrete for a 3×3 Fence Post. See answers under the earlier question Best way to source concrete for a long fence project. To get the fast-setting concrete to begin going from a powder to a solid block, you must add in the right amount of water. florida man february 17 45 cubic feet, and an 80-pound bag yields. It is made by mixing cement, water, and aggregates such as sand, gravel, or crushed stone. concrete are what's needed to set a mailbox post. It's right for a 4×4 fence post to have 1 bag per hole.
A fence post pounder is an essential tool for quickly and easi. 45 cubic feet, and an 80-pound bag yields 0 This means that in the example above, each post would require about eight 50-pound bags. Block count: Block Size Request a Quote. Ready to Use Concrete Mix. Here is a general estimate of the number of 50-pound concrete bags you'll need per post: Please note that these estimates are based on average post hole sizes and may vary. Determine the volume that the post will occupy in each hole. There are 45 80-pound bags and about 60 60-pound bags of concrete in a cubic yard. To determine how many bags of premixed concrete you will need, divide the total cubic yards needed by the yield. If your project requires three cubic yards of concrete, first understand that three cubic yards equals 81 cubic feet (3 * 27). To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. Calculate the amount of concrete needed and the cost per bag for setting fence post. Calculate the amount of concrete needed and the cost per bag for setting fence post. bong rips One of the most important tools is a fence post pounder. Step 2: Size of holes. Looking for a classic way to enclose a small or large area in your yard? This guide will show you how to install a chain link fence in a single weekend. Expert Advice On Improving Your Home Videos Latest View All. Now that you’ve determined the size of the hole you’ll need, you can use the chart below to determine how many 50-pound bags of concrete you’ll need. Enter the depth of the post holes in feet. Now that you’ve determined the size of the hole you’ll need, you can use the chart below to determine how many 50-pound bags of concrete you’ll need. pre-mix 60 lb bags: $4 - $14 per bag: pre-mix 80 lb bags. I don't know if the guy saying you need 160 pounds of concrete per vinyl post is joking. Calculate the amount of concrete needed and the cost per bag for setting fence post. An 80 pound bag of concrete will yield. Air entrained for improved freeze/thaw resistance. If your project requires three cubic yards of concrete, first understand that three cubic yards equals 81 cubic feet (3 * 27). Sakrete 40-lb Concrete Mix Model # NA. This tool takes into account the total length of the fence, the number of posts, and the thickness of the posts to provide a spacing recommendation that enhances the. How big of a hole do I need for a 4×4 post? Now that you know the amount of concrete mix you need, it's time to figure out how many bags you'll use. Determine the volume that the post will occupy in each hole. How Many Bags of Concrete Do I Need to Set a Mailbox Post? You’ll need two 50. The mix will take 5 - 10 minutes to set hard enough to remove any supports. A: If you DIY, a 50-pound bag of Quikrete concrete mix is $5. Set your metal fence post in a hole that's 1/3 to 1/2 the height of your post but verify the specifics with your local building department. Enter Hole Depth in inches: For 2 inch post diameter / 6 inch hole diameter: For 3 inch post diameter / 9 inch hole diameter: For 4 inch post diameter / 12 inch hole diameter: For 6 inch post diameter / 18 inch hole diameter: Various sources for "how much per bag" but using one that has it a 0 bag would result in 3. police shooting albuquerque today ∙ 2012-09-13 02:48:18 How many bags of concrete for a fence post hole? I believe 80lb bags produce something like So for 8x8x16 blocks, it would be. Also, read: What Is Bar Bending Schedule | Preparation as Per Bs 4466 | Tolerances as Per Bs 4466 When mixing by hand, form a crater for adding stone under 3 inches (8 cm) to 4 inches (10 cm) of concrete Add approximately 285 qts) of clean water per 30 KG Excavate 6 inches (15 cm) beyond string lines to allow room for. Since a cubic yard requires 45 bags, the cost for a cubic yard at that store would be $215 The amount of concrete you need for a 10x10 slab depends on how thick it will be. Just enter in the desired height, width, and thickness of your concrete project and then press the calculate button. 6 cubic feet, divide 81 cubic feet by 0. Spanish carrier Iberia annou. It's likely it emerged as a simple, easy-to-remember guideline for those new to fencing projects. Also great for setting footings, pouring slabs and anchoring posts and poles. Simplify your fence or deck construction. Add Extra for Safety Margin: It is advisable to add a safety margin of 10-15% to account for any wastage, spills, or unforeseen circumstances. Once you know the depth and diameter of the holes, you can calculate the amount of concrete you need for each fence post. Step 2: Size of holes. bag concrete contains roughly 56 bags of Quikrete concrete mix. Keep in mind, it'll give you an estimate only, but it's a great way to begin planning your project. Each 80-pound bag of concrete typically yields around 0 For 4×4 fence posts, you need 1 ½ bags of concrete per hole. Our handy postcrete calculator (below) can help you to estimate the amount of postcrete needed, measured in bags and kilograms! How Many 80lb Bags of Concrete Per Fence Post? For reference, a 40-pound bag of concrete typically yields about 0. Concrete placement inspections are a crucial part of any construction project. As PSI increases, so does strength and price. Use the following yields per each bag size: A 40 pound bag yields 0. Calculator Example: When filling a 10" sono tube with 314 x (42) x 399 CF / 27 = Please verify online calculator results for all orders with a member of our sales staff. 45 cubic feet the bucket may overflow and/or be too deep to properly mix, but I do it all the time for difficult access pours of small quantities.