This crate is about 10 1/8 inch long, 6 1/4 inches wide and around 4 1/4 customs high. The holds about 16 2/3 pounds of mixed tumbled stones.

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### How countless Pounds of stone Will ns Need?

How countless pounds of tumbled stones will certainly you must use them as ground sheathe in a potted tree or to to fill a decorative jar?It is very easy to calculation the quantity of rock needed if you understand the size of the jar and also how lot the stones weigh in pounds per cubic inch.This functions for small projects such together filling a planter, however it can additionally be used for estimating how many tons of stone will be required in a landscaping project.

About ten pounds of blended tumbled stones will be needed to cover the soil surface ar in each of this planters to a depth of around two inches. Photo © Randy Look, iStockphoto.

### Planter: simple Example...

Let"s say the you have some nice planters prefer the 3 in the image at right. You desire a vivid layer of tumbled stones on top of the soil in the planter. The will permit you to water the plants without disturbing the soil in the planter. How numerous pounds of stones will certainly be needed?Each planter has actually a soil surface ar area that is nine inches long and also nine inch wide. You want to cover the floor surface about one customs deep with blended tumbled stones. How countless pounds will you need?Your an initial job is to calculate how countless cubic inches of stone will it is in needed. This is excellent by multiplying size x broad x depth.9″ x 9″ x 1″ = 81 inches3Great! We require 81 cubic inch of stone. How numerous pounds is that?Mixed tumbled stones weigh about 0.0618 pounds every cubic inch (or around 107 pounds every cubic foot), and also we need 81 cubic inches, so we simply multiply...81 inches3 x 0.0619 pounds/inch3 = 5.01 poundsThere"s ours answer! we need around 5 pounds of combined tumbled stones because that each planter. This number is one estimate and it need to be relatively close. However, depending on the size of the stones and also the shape and the size of the container in i beg your pardon they will certainly be used, the number can be a small high or a tiny low. But, the is a reasonable estimate.

About 4 2/3 pounds of mixed tumbled stones will certainly be required to covering the soil in this pot to a depth of around 1 1/2 inches. Picture © Skip ODonnell, iStockphoto.

## Round Flower Pot

The lot of stones essential to sheathe the surface ar of a round flower pot can quickly be calculated. As an example, how numerous pounds of stone would be necessary to cover the soil surface of the flower pot at best to a depth of about 1 1/2 inches?Our very first task is to calculate the soil surface ar area. The formula because that calculating the area the a circle is A = Pi x r2. Pi is same to approximately 3.14 and also our flower pot has an inside radius the 4 inches (a diameter of 8 inches). Therefore by calculation, the surface area is…3.14 x 4 inches x 4 inches = 50.24 inches2
If we multiply the surface area by the desired depth that coverage the an outcome will be the volume that stones needed.50.24 inches2 x 1.5 customs = 75.36 inches3Now to get the weight of the stones needed, us multiply the volume by the thickness of the stones (0.0619 pounds/inch3).75.36 inches3 x 0.0619 pounds/inch3 = 4.66 poundsSo, we will certainly need around 4.66 pounds of rock to cover the soil in ours flower pot come a depth of about 1 1/2 inches.

For big projects you deserve to use river rock available in ~ lawn and garden stores. Most rounded flow stones weigh around 100 pounds per cubic foot. Picture © SpiderPlay, iStockphoto.

### Much bigger Projects...

This same method of calculation can be used to landscaping projects where rounded river stone is used. Due to the fact that these room much larger projects we will usage pounds per cubic foot because that the weight of the stone. Many rounded river stones weigh around 100 pounds per cubic foot.
Let"s say that we want to have actually a bed that shrubbery along the front of our home which is 85 feet long. And, we want that bed that shrubbery to be 5 feet vast and spanned by a great of river rock 4 customs deep. First, we calculate how countless cubic feet of rock are essential by multiply the length of the bed through its width and by the depth of the stones...85 feet x 5 feet x 0.33 feet = 140.25 feet3
Then multiply by volume of stone needed through the thickness of the rock - i m sorry is 100 pounds every cubic foot.140.25 feet3 x 100 pounds / foot3 = 14,025 poundsYou deserve to see the we will need about 14,025 pounds of rock or a tiny over 7 tons.Happy Tumbling!

### beer-selection.com Authors

 Hobart M. King has decades of absent tumbling experience and also writes many of the write-ups on beer-selection.com. He has a phd in geology and also is a GIA graduate gemologist. He also writes the articles around rocks, minerals and also gems top top Geology.com.
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