Small gardens frequently require a relatively small sum of topsoil, thus a bag or two from a gardening center typically covers the need. For large spaces, buying bulk material is often the cheapest option. Since bulk topsoil is occasionally retailed by the Cape Town, you need to measure the particular area properly to get the total square footage. You will use that figure to calculate the volume, or complete cubic yardage of material to buy. 1 cubic yard can be expressed as 1 lawn cubed or 27 cubic feet. Should you ever doubted the value of high school geometry, now’s the time to give it a go.

Assess the length and width of any rectangular or square gardening place with a measuring tape. Multiply the length and width figures together to get the area’s total square footage. A place 20 feet long and 10 feet wide has a total of 200 square feet.

Split an L-shaped gardening place into two easy rectangles with a piece of string. Measure each corner and calculate its square footage. Add the separate calculations together for the total square footage of the gardening area.

Calculate a 90-degree, or correctly, triangle’s square footage by measuring its base and height. Multiply the height by the base. Divide that amount by 2 to determine the triangle’s total square footage.

Divide a scoop with a piece of string in case the shape is not a perfect triangle. Run the string in the contour’s highest point down to a point straight underneath on its base to bisect the area into two right triangles. Calculate the square footage of each right triangle separately. Add the two figures together for total square footage of the gardening area.

Measure a round garden in any spot on its outer edge, or margin, to the middle point of the circle to get the radius. Square this figure, or multiply it alone. Multiply that amount by 3.14, or pi, to receive the square footage of the circle.

Multiply the width of an oval area by its length. Multiply that product by .08 to find the oval’s square footage.

Multiply any garden’s total square footage by the amount of inches in thickness of topsoil you need — but remember to convert the inches to feet first. This provides you the place’s cubic footage, which you can utilize to discover cubic yardage. If your lawn measures 15 feet long and 5 feet wide and you would like 4 inches of topsoil, multiply the 3 numbers together with the thickness expressed as a decimal. In this instance, the decimal kind of 4 ins, converted to feet, is .333, therefore 15 times 5 times .333 provides you 24.975 cubic feet. Notice this by 27, which is the amount of cubic feet in 1 cubic yard. This offers you 0.925, or slightly less than 1 cubic yard of topsoil.