If you're staring at a patch of dirt inside your backyard plus trying to puzzle out how many square feet does a yard of rock cover, you're probably looking intended for a quick solution so you may get on along with your weekend. The short answer is that one particular cubic yard of rock typically addresses about 100 square feet if you're spreading it three or more inches deep.
Of course, the number of isn't set in stone (pun intended). Depending on how thick you need the layer to be or the size of the stones you're buying, that coverage can swing quite a little bit. If you're just trying to obtain a ballpark estimate for a project, 100 square feet is the gold standard rule of thumb most landscapers use. But before you pull out your credit card and purchase a delivery pickup truck, it's worth searching into the information so that you don't finish up with a massive pile of leftover gravel seated on your drive for three months.
The Relationship Between Depth and Coverage
The greatest factor within this whole equation is depth. A person can't really talk about square video without talking regarding how deep you plan to look. Think that of a cu yard of rock like a huge box that actions 3 feet by 3 feet by 3 feet. That's 27 cubic feet of material. When you take that will "box" and distribute it out over the ground, the leaner you spread this, the more area it covers.
If you're performing a decorative blossom bed where a person just want to hide the dust, you may only require a 2-inch level. At 2 inches deep, a yard of rock will cover about 162 square feet. That's a very significant jump through the 100 square feet you get at 3 inches.
On the particular flip side, in case you're building a driveway or a walkway that's heading to see a lot of foot traffic or weighty vehicles, you'll probably want it thicker—maybe 4 inches. At four inches deep, your own yard of rock only covers regarding 81 square feet. You can observe how quickly the numbers change just by adding or subtracting an inch or two of width.
Why Rock Size Actually Issues
It's simple to assume that a yard of "rock" is just a yard of rock, but physics has a funny way of complicating things. The particular size and form of the gemstones you choose will play a role in how well they cover the terrain.
Small Rocks (Pea Gravel plus Crushed Stone)
Small rocks like pea gravel or even "minus" rocks (which include dust plus tiny fragments) package together very tightly. Because there's less air space between the stones, they have a tendency in order to settle more. In case you order a yard of pea pea gravel, it might look like plenty whenever it's in a pile, but as soon as you spread it and walk onto it a few periods, it compresses. You will probably find that you require slightly more of these smaller materials to reach your own desired depth compared to larger, chunkier rocks.
Large Rocks (River Rocks and Cobblestone)
When you progress to larger river rocks—the kind which are maybe 2 in order to 4 inches in diameter—you're dealing along with a lot of "void space. " These rocks don't sit flush towards one another; they trim and stack with gaps in in between. Because of these gaps, a yard of large river rock can in fact sense like it covers more ground due to the fact you're essentially "filling" some of that will space with atmosphere. However, the drawback is that if a person spread them as well thin, you'll see the soil or weed fabric peeking through the holes. For bigger rocks, you typically have to go deeper just in order to ensure you have got total coverage.
Common Landscaping Situations
Most people are buying rock for one of three reasons: a path, a bloom bed, or a driveway. Each one particular has different "standard" depths that will certainly affect your mathematics.
- Blossom Beds: Generally, two to three ins is plenty. You desire enough to stop the sunlight therefore weeds don't grow, but not therefore much that you're burying the base of your shrubs.
- Walking Pathways: A person usually want a minimum of 3 inches right here. If it's too thin, your feet will push the stones aside and you'll be walking for the dirt underneath within a week.
- Driveways: This is the heavy-duty things. You're looking at 4 to 6 ins of rock, generally in layers. In case you're just performing a "top-off" to make a vintage entrance look fresh, two inches might function, but for a new build, you're going to require a lot more yardage than you believe.
Carrying out the Math Without having a Headache
If you need to be precise, there's an easy formula you can use. You don't need to be a math whiz; a person just need a calculator.
- Gauge the length plus width of your neighborhood in feet and multiply them to get your Total Square Feet .
- Determine how deep a person want the rock in inches.
- Multiply your Square Feet with the depth (in inches).
- Divide the number of by 324.
The reason why 324? It's a magic number within the landscaping globe that represents how many square feet one yard of material covers in exactly one inch deep.
So, let's say you have a space which is 20 feet lengthy and 10 feet wide (200 square feet) and a person want it 3 ins deep. * two hundred x 3 = 600 * six hundred / 324 = 1. 85 back yards
In this particular case, you'd probably just order two yards to become safe.
The particular "Oops" Factor: The reason why You Should Order Extra
I've seen it take place a thousand times: someone calculates specifically 4. 1 yards of rock, purchases 4 yards in order to save a few bucks, and then ends up with a bald spot within the corner of their yard.
It's often a good concept to include about 10% additional in order to your final quantity. Why? Because the ground isn't perfectly flat. There are scoops and holes a person can't see unless you start spreading the particular rock. Also, when the rock is shipped, some of it usually gets trapped in the lawn or maybe the cracks of the driveway exactly where it had been dumped. Having a little bit left over is much better than having in order to pay for a second delivery fee just to get half a yard of rock to be able to finish the work.
Tons vs. Yards: Don't Get Puzzled
One thing that trips a great deal of people upward is that some landscape supply yards sell by the particular yard (volume) as well as others sell by the ton (weight).
A cubic yard of most landscaping design rock weighs approximately two, 500 to 3, 000 pounds , which is about 1. 3 to 1. 5 tons. If your local supplier says, "We sell by ton, " you'll need to do a quick transformation. If you determined that you require 2 yards of rock, you need to probably order about a few tons.
Keep in mind that wet rock weighs a lot more than dried out rock. If it's been raining, that will pile of small is going to be significantly weightier, which might mean you get a little less quantity per ton compared to you would probably on a sunny day. It's a bit of a quirk of the, but it's worth asking your own supplier how they measure their lots.
Final Thoughts on Coverage
Figuring out how many square feet does a yard of rock cover doesn't have to be a questioning game. So long as you remember the 100-square-foot rule for a 3-inch level , you're already ahead of the particular curve. Simply take a second to look at your project—consider the size of the rock you're choosing and how much foot visitors the area can get.
If you're still sense unsure, most nearby rock yards are happy to help. Provide them with your measurements, tell them what kind of rock a person like, and they will can usually spit out an estimate in seconds. Just remember to put on safety gloves when you start shoveling—that "one yard" of rock seems a lot heavier once it's seated within your driveway than it did whenever you were searching at the quantities on a display screen!