150 to 200mm of soil is usually sufficient for most planting. It might contain very small stones and that’s perfectly OK. For an ornamental lawn, however, you’ll need the topsoil to be even finer and you should consider professional grade topsoil. You have 1500 square feet and wish to put down 2" of topsoil. ... First, we need to divide the grass … It’s not necessary to buy new topsoil or any special form of soil to cover your newly planted grass seed. It’s also important to know how much seed you need, and that’s why Lowe’s has a Grass Seed Calculator to make sure every inch of your yard is covered and to save you time and money. Estimate the density of the soil to be used. How to Use our Topsoil Calculator. STEP 3: Spray the area with water once clean of debris. New lawns require about 9 inches of new topsoil to aid grass seed germination. We’ll also help you understand the benefits to each, so you get the right product for your project. In addition, you can calculate the price per unit mass/volume for the custom soil aggregate: $$Price\,per\,unit\,mass = {Total\,topsoil\,cost \over Total\,topsoil\,weight}$$, $$Price\,per\,unit\,volume = {Total\,topsoil\,cost \over Total\,topsoil\,volume}$$. Rack it out so the grass seed is covered about 1/4 of an inch. When you start any outdoor landscaping project, it’s important that you have a rough idea of how much material you are going to need. Otherwise, simply enter your measurements and appropriate units into our topsoil calculator to ensure your gardening project gets off to the best of starts! - it is a question frequently asked by people beginning their adventures in gardening and plant cultivation. Well, our calculator can take care of this for you. 4373077 Rolawn Limited, The Airfield, Seaton Ross, York, YO42 4NF, How to calculate volume & recommended depths. The process of adding a thin layer of soil on top of your lawn is a great way to improve it without disturbing existing grass. For normal utility lawns, a double screened ¼” topsoil will do. The depth of topsoil for growing vegetables will vary depending on what you plan to grow. The recommended depth of imported topsoil required will depend on the site, the existing soil and what you are going to use the area for. I can buy 5 cubic yards for $100, which weighs 5000 pounds. Once you know the volume in cubic metres you can work out how many bulk bags are needed by dividing by the volume in a bag. Soil calculator supporting metric and imperial units - kg, tons, tonnes, cubic meters, cu ft, cubic yards, etc. Try using our Topsoil Calculator below to work out how much topsoil you need. Add the 2 inches of top soil then reseed the area that you added the top soil. To add topsoil to an existing lawn, you'll only need a few inches. What if I’m using a custom soil aggregate on top of my lawn? If you are sowing a new lawn from scratch, spread your grass seed at a rate of 35g per square meter.. For overseeding an existing lawn, spread your seed at 25g per square meter.. How to Work Out How Much Seed You Need For a Square or … Topsoil is the uppermost layer of soil, which is high in nutrients and organic matter. The first thing you need to do is measure the area you need to cover and the depth of soil you need (measure in metres and centimetres if you can), then just enter the measurements in our topsoil calculator below and press calculate! I have a gravel bed I would like to convert back into a bed/lawn of grass. Sod and soil calculator to help you determine the amount you may require for your residential or commercial grass project in British Columbia or Alberta. If you have the price per unit mass (e.g. The cost of the topsoil is $30 per US short ton. Turf, and indeed most plants, need a depth of around 15cm of good quality growing medium to sink their roots into. It can be used for making new beds, borders, raised beds or as a base for lawns, where the natural soil … Remove grass clipping, dethatching debris, and plugs of soil from aerating. All that work and to throw seed or fertilizer by hand is just sad. When it comes to establishing and maintaining your lawn, knowing you have the right grass and grass seed for your area instantly increases the chances of growing a lush yard. In the fall of 2017, I spread two-(2) cubic yards – first Erth Food and second bulk topsoil; the Erth Food really produces a “Chicken Shit Grass” and the top soil felt and looked more like sand: I spread these 2 cubic yards across the front yard and part of the back yard that surrounds the swimming pool. A nice, thick lawn requires healthy soil as its base, but this can be difficult to do once grass is established. Recommended depths for topsoil • General gardening: for most planting, such as for a herbaceous border, you'll need around 8 inches (200mm) of topsoil. Calculating how much mulch or soil you need is simple and easy … just multiply LENGTH (m) X WIDTH (m) X DEPTH (m) or you can use the handy mulch and soil calculator below Multiply the volume by the density (in the same units) to get the soil weight If you need to contact us please call +44 (0)1522 704444 or +44 (0)7908 518827. Topsoil Calculator Use our topsoil calculator to calculate how many bulk bags of topsoil you require. To fill a 3x6 bed with 10" sides, you will need 15 cubic feet of blended soil. How do you know how much soil is already in your … Asked August 11, 2016, 9:50 AM EDT. Enter the area to be covered and the desired thickness, and we'll tell you how much topsoil to get. The recommended depth of topsoil for creating lawns from turf or seed is 100 to 150mm. It is time to choose the desired thickness (depth) of the topsoil level. You can already jump to the third point of topsoil calculator instruction in How much soil do I need? Let’s say that I have a rectangular garden bed which measures 5 feet in length and 4 feet in width. This is a good way of keeping your lawn nice and thick. Compost is the most recommended material to use, as long as it is completely finished and has few fillers. It is widely available to buy in bags or in bulk from specialist suppliers, garden centres and DIY superstores. The process is straight-forward – you get new soil and add it to the top of your current soil, giving it an added boost … You might be wondering what to do if your units are in different measurements? I now enter these measurements into the topsoil calculator to work out the garden bed area: $$Area = \pi × \biggl( {Diameter \over 2} \biggr) ^2 = \pi × \biggl( {8\,ft \over 2} \biggr) ^2 = 50.27\,ft^2$$. Real-time graphics. Topsoil is the uppermost layer of soil, which is high in nutrients and organic matter. That’s why we created our topsoil calculator. Simply fill in the width, length and depth of the area you need to fill with … I want to know how much topsoil I will need, the weight of the aggregate and the total cost of the project. If you need to know how to grow grass from seed, or how to sod, we recommend a visit to our full modules on seeding and sodding for more tips. What if I want to work with different units. Topsoil similar to the existing soil structure is acceptable and will help smooth out the ground, but doesn’t contain much organic material. For example, density is given in pounds per cubic yard and volume is given in cubic feet. Then I’ll show you how to do in a moment firstly, remember these numbers. Use roughly 4/10 cubic yard of topsoil for every 1,000 square feet of yard you topdress. But for a vegetable garden, count on 12 inches; use 18 inches for raised beds. An established grass crop mowed no shorter than 3" is able to out compete as well as shade the soil to discourage weed seed germination. Turf is a made up of thousands of living plants and all plants need growing medium to support them. Let's make it 0.6 yd. 1m3 will cover an of 40 square metres 25mm thick, for example: If there is enough topsoil on site to provide the depth needed, till it and remove all stones, debris and clumps of weeds. Our calculator can also identify how much cricket loam, rootzone, sand, gravel and bark you need. You can also enter your measurements into Rolawn’s handy Topsoil Calculator which will give you an indication of how many bags of the different Rolawn topsoils are needed. You need at least 4 to 6 inches of nutrient-rich topsoil to grow good grass. Calculate the number of bags of soil of certain size would be required to cover a given area with a given thickness of soil layer. Grass will grow in 1.5 inches of topsoil, but the minute it gets dry or hot and there is not root system to support the plant it will die. "How much soil do I need?" In new properties the soil is often shallow and poor quality, therefore importing the full recommended depth of topsoil may be required. Be sure to know exactly the correct quantity for your project or you could find yourself spending more than is needed, and with a pile of topsoil you don’t need! When you buy a truckload of topsoil, it is often sold by the cubic yard. Topsoil is most often sold by the metric tonne (1000kg), but the easiest way to calculate the quantity of topsoil required is by volume (cubic metres or litres). If your existing soil is reasonably good quality, a shallower layer of new topsoil may be all that’s required to bring it up the required depth or assist with providing a level surface and good tilth. It is widely available to buy in bags or in bulk from specialist suppliers, garden centres and DIY superstores. cost per cubic foot) then the calculator can work out the total cost of the required soil for topdressing your lawn: $$Cost = Price\,per\,unit\,mass \times Weight$$, $$Cost = Price\,per\,unit\,volume \times Volume$$. Multiply the area you calculated earlier, by the depth of growing medium needed. Topsoil Calculator Use our free topsoil calculator to quickly identify how many tonnes or 25L/kg bags you need for a project. You might have noticed that we switch between units in our examples. I enter these measurements into the calculator which would do the following operations in order to work out the total area of the garden bed: $$Bed\,area = Length \times Width = 5\,ft \times 4\,ft = 20\,ft^2$$, $$Volume = Area \times Depth = 20\,ft^2 \times 3\,in = 5\,ft^3$$. How much soil do I need? Prepare the Soil. Then, the topsoil calculator works out the total weight: $$Weight = Volume \times Density = 16.76\,ft^3 \times 1000\,lb/yd^3 = 0.31\,t$$, $$Cost = Price\,per\,unit\,Mass \times Mass = 20\,$/yd^3 \times 0.31\,t = $12.41$$. This means the soil has passed through a sieve with ¼” holes in it, twice. Adding new topsoil is a great way to enrich and greatly improve the quality of existing soil in your garden. How much soil/top soil is needed for grass. We want to create enough space for the roots of grass to grow freely and without any obstacles. If you spend time to prepare the soil you have, your new grass seeds will sprout. I want to know how much topsoil I will need, the weight of the aggregate and the total cost of the project. Using the measurements you provide from your lawn, our calculator first works out the area and volume of the soil required to ensure equal topdressing coverage. For a lawn, you only need about six inches of topsoil. Then, the topsoil calculator would work out the total weight: $$Weight = Volume \times Density = 5\,ft^3 \times 110\,lb/ft^3 = 0.275\,t$$, $$Cost = Price\,per\,unit\,mass \times Weight = 30\,$/t \times 0.275\,t = $8.25$$. Step 5: Soil The soil mix that we recommend is a 50/50 sand to soil mix. It does this by using the formulae given below: The total area of the garden bed and volume of the required topsoil is calculated using the formulae: You can calculate the total amount of the topsoil required for your lawn if you know the density of the topsoil using the formulae: Note that standard topsoil has a density of 100 lb/ft³. First, the pH of the soil needs to be between 6.2 and 7.o. Standard density for topsoil is around 100 lb/ft 3 (1600 kg/m 3). Tel: 01904 757300 Fax: 01904 608272 Email: info@rolawn.co.uk VAT No. Do you prefer to manually work out how much grass seed you need? Make the calculations and see the changes. Topsoil Calculation: How Much Topsoil Do You Need: Your Input Area: 1000 square feet Thickness: 3 inches Result You need a total of 250 cubic feet of topsoil, or 9.26 cubic yard of topsoil, or 167 1.5-cubic-foot bag of topsoil, or 125 2-cubic-foot bag of topsoil, or 84 3-cubic-foot bag of topsoil. STEP 4: Use the till to add in some nutrients and organic matter. Hello! Have a big landscaping project on your to-do list that requires filling in natural areas with mulch or soil? 💰. Check the depth before you calculate the amount of topsoil you'll need for a base. We know this can be tricky, especially when you are trying to estimate this by eye. GB 371 494929 Company Reg No. With the Lowe’s Mulch and Soil Calculator, figuring out exactly how much you need for the allotted space is easy. If I choose to not remove the gravel, how many inches of soil will I need to place over the gravel to sustain grass from seed? $$Number\,of\,bags\,required = {Weight\,of\,topsoil\,required \over Weight\,of\,a\,single\,bag} = {0.275\,t \over 0.02\,t} = 13.75 \rightarrow 14\,bags$$. • Lawns: four to six inches (100mm-150mm) of topsoil is required to let the roots of a newly laid lawn establish themselves. Divide the cubic metres required by 0.67 to give you the tonnage. STEP 2: Rake the soil to remove sticks, debris, and old grass. Domestic grass seed needs an optimum 6 inches of topsoil. If you already have soil in your garden and you want to lay turf, how can you tell if you need more topsoil. These include compost, yard waste or a slow-release fertilizer. Not only is it able to work out the volume of topsoil you will need, but also the total weight and cost of the project. You’ll need to get this old grass out as it can poison the roots of your new grass seed. and the total volume of the topsoil required: $$Volume = Area \times Depth = 50.27\,ft^2 \times 4\,in = 16.76\,ft^3$$. To answer this question, the first step is to establish the volume of soil needed. Grass plants need at least 15cm of good quality, well prepared topsoil to root into. Do not throw seed by hand! Turf ideally needs around four inches of top soil to root in. Rolawn topsoil is sold in bulk bags, however if you need to calculate the tonnage required when buying loose topsoil, you’ll need to check the bulk density of the product, as this will vary depending on the type of topsoil and its make up. Example: How Much Soil Do I Need for a 3x6 Bed? (If you need to add more soil to a certain part of your yard, say 3-6 inches or more, just over-seed the area and it will look like new in a few weeks.) The exceptions are tree planting where deeper soils are needed. It can be used for making new beds, borders, raised beds or as a base for lawns, where the … How does the calculator work out the cost? Working out How much soil you need. I want to ensure equal coverage to a depth of 4 inches. Let’s take the first example in which we required 0.275 US short tons of topsoil. (If you need to add more soil to a certain part of your yard, say 3-6 inches or more, just over-seed the area and it will look like new in a few weeks.) Once again, the soil must be adequately raked and graded for proper drainage. Combining these measurements with a little preparation will ensure that you are ready for your next outdoor landscaping project. How much topsoil do I need is one of the most commonly asked questions by gardeners looking to buy topsoil. You need to replace the topsoil to work with your existing subsoil, but just how much do you need? That means it can retain some moisture and nutrients, and also permits drainage. What if you want to work out how many bags of topsoil your landscaping project will require? The calculator will also convert yards, feet & inches if your measurements aren’t in metres and millimetres. If the soil structure is poor, incorporating a soil improver may be the best option. Imagine we buy soil in 40 pound bags, which is equivalent to 0.02 tons. Online topsoil calculator to estimate how much topsoil you need for your gardening project. Do make sure you select the correct units in the calculator. Roots don't grow well in … Working in small areas a few square feet at a time, shovel out a small amount of your material. Topsoil is sold by the cubic yard. See below for two fully worked examples using different initial criteria. I want to ensure equal topsoil coverage to a depth of 3 inches with standard topsoil (110 lb/ft³). This can be easily calculated from the weight/volume of a single bag of the topsoil you will purchase using the formulae: $$Number\,of\,bags\,required = {Weight\,of\,topsoil\,required \over Weight\,of\,a\,single\,bag}$$, $$Number\,of\,bags\,required = {Volume\,of\,topsoil\,required \over Volume\,of\,a\,single\,bag}$$. Turfonline’s turf expert explains more in this article. This is a good way of keeping your lawn nice and thick. To create the blend, use the following quantities: 9 cubic feet of topsoil (9 20-quart bags) 4.5 cubic feet of compost (4.5 20-quart bags) 1.5 cubic feet of … Simply select the correct units in the drop down area for each measurement and the calculator will convert them using the following conversions: $$1\,foot = 12\,inches = 0.33\,yards = 30.48\,centimeters = 0.3048\,meters$$, $$1\,US\,short\,ton = 2000\,pounds = 0.893\,imperial\,long\,ton = 907\,kg$$. Spread grass seed if overseeding. 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