General gardeningġ50 to 200mm of soil is usually sufficient for most planting. The recommended depth of topsoil for creating lawns from turf or seed is 100 to 150mm. 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. If the soil structure is poor, incorporating a soil improver may be the best option.
VOLUME CALCULATOR SOIL FULL
In new properties the soil is often shallow and poor quality, therefore importing the full recommended depth of topsoil may be required. 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. Divide the cubic metres required by 0.67 to give you the tonnage. As a general rule, a tonne of a standard topsoil equals approximately 0.67m 3. 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.
Do make sure you select the correct units in the calculator. The calculator will also convert yards, feet & inches if your measurements aren’t in metres and millimetres. 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. Bulk bags vary in size, so do check how much is in a bag when comparing different products. 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. Measuring in metres is simplest, as this will give you the volume of topsoil you need in cubic metres.įor example: A site has an area of 10m x 15m and needs a coverage of 150mm. This is important when you need to haul it away.To calculate how much topsoil you need, simply measure the dimensions of the area you wish to cover and multiply this by the depth required. When you remove compacted soil, keep in mind that the volume may expand as the soil is excavated. Don’t forget that some materials like mulch, compost and green coverage may compact over time because the water, degradation, compaction, etc., and after some months the initial four inches thick cover could become only two inches thick. The same steps can be followed to calculate the volume of gravel, sand and cement when you are working with concrete. ft x 5 inch / 12 / 27 = 30.86 cubic yards = 31 cubic yds. How many cubic yards do you need?Ģ000 sq. The cubic yard is a valuable unit of measurement to help assure that you are getting the value you expect when purchasing landscaping materials.Įxample: You have a 2,000 square foot area and need to cover it with 5 inches of mulch. This will help you avoid coming up short or buying excessive material. To convert this answer to cubic yards, you only have to divide by 27, and this is the number of cubic yards needed. To calculate the number of cubic yards required for your next landscaping project, simply calculate the area (square feet) you need to cover and multiply it by the thickness in inches, then divide by 12.This answer is the total volume in cubic feet. The photo shows ten cubic yards of mulch, in relation to a six-foot-tall man.
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