What Size Chainsaw Do I Need For Cutting Trees?

When you are looking to purchase a chainsaw, one of the most important factors you need to consider is the length of the saw blade – also known as the chain bar. 

What size chainsaw do you need?

The answer to that question will depend on a variety of factors, including the type of wood you will be cutting and the size of the tree. 

In this blog post, we will take a look at some things to keep in mind when choosing a gas-powered chainsaw bar length size, as well as provide some recommendations for different types of users.

Chainsaw Sizes: Choosing the Right One

Chainsaws come in all shapes and sizes. So, how do you know which one is right for you? It all comes down to the job at hand and your personal preferences.

In this blog post, we’ll walk you through everything you need to know about choosing the right size chainsaw for the job.

When it comes to chainsaws, size does matter. The right size saw will make the job easier and help you avoid injury.

If the saw is too big, it can be difficult to control. If it’s too small, it won’t be able to handle the job.

Things To Consider

There are a few things you need to consider when choosing a chainsaw:

  • The type of wood you’ll be cutting
  • The size of the tree
  •  Your own strength and abilities

Let’s take a closer look at each of these factors.

The Type Of Wood You’ll Be Cutting

The type of wood you’ll be cutting is important because it affects the size of the saw.

If you’re going to be cutting softwoods, like pine or cedar, you can get away with a smaller saw. Hardwoods, like oak or maple, require a larger saw.

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The Size Of The Tree

The size of the tree is also an important consideration. If you’re only going to be cutting small trees, then a smaller chainsaw will suffice. But if you’re planning on felling large trees, you’ll need a bigger saw.

Your Own Strength And Abilities

Your own strength and abilities are also factors to consider. If you’re strong and have good stamina, you can handle a larger saw.

But if you’re not as strong or you get tired easily, then a smaller saw will be easier for you to control.

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Chainsaw Sizes Recommended For Each Task:

Chainsaw sizes are determined by the length of the bar, which is the metal blade that extends from the end of the saw.

The size of the engine will also increase as the size of the saw increases. It’s important to choose the right size chainsaw for the job you plan on doing.

If you choose a saw that’s too small, it won’t be able to handle the task and may overheat or break. If you select a saw that’s too large, it will be more difficult to control and could cause injury.

When choosing a chainsaw, always err on the side of caution and pick a model that’s slightly larger than what you think you need. That way, you can be sure it will handle anything you throw at it.

Pruning Limbs – 6″ To 10”

Chainsaws come in a range of sizes from 14” to 36”. The most popular size for pruning limbs is between a six and ten-inch blade.

If you have a lot of trees on your property, or if you do a lot of gardening, then you might want to consider getting a longer blade. 

A six or seven-inch blade will be able to handle most pruning tasks around the home. If you have larger branches that need to be cut, then you might want to consider getting an eight or nine-inch blade. 

The majority of people who purchase chainsaws will never need anything larger than a ten-inch blade.

If you think you will need a larger size, then you should consult with a professional. 

Another interesting read :How to Cut Rocks with a Tile Saw

Removing Branches – 8” To 12”

Chainsaws are categorized by the size of the bar, which is the part of the saw that extends out from the body of the machine. 

The size of your chainsaw’s bar will determine what kind of branches you can cut. 

For smaller branches – up to around eight or nine inches in diameter – you can use a saw with an eight-inch bar. 

Ten-inch bars are good for medium-size branches – up to about 12 inches in diameter. 

And if you need to take down larger limbs – anything over 12 inches across – then you’ll want a saw with a bar that’s at least 14 inches long.

Felling Small Trees – 12” To 14” Guide Bar

For trees that are 12” to 14” in diameter, you will need a chainsaw with a guide bar of at least 16”. If the tree is softwood, you can get away with using a smaller saw.

However, if the tree is hardwood, you will need a more powerful saw.A guide bar of 16” will allow you to cut through trees that are up to 14” in diameter.

If you try to use a smaller saw, it will be very difficult to cut through the wood. The chain will also tend to come off of the bar if it is not sharpened properly.

One thing to keep in mind is that the size of the tree does not always dictate the size of the saw.

If you are felling large hardwood trees, you will need more powerful chainsaw bars regardless of the tree’s heavy-duty cutting diameter.

Felling Medium Trees – 16” To 18” Guide Bar

If you want to cut down medium-sized trees, then you need a chainsaw with a 16” to 18” guide bar.

This size of the saw is also good for cutting large limbs and logs. You can also use it to cut firewood.

The Husqvarna 450 Rancher is a great choice for this purpose. It has an 18” guide bar and can handle up to 50cc of displacement.

Another good option is the Stihl MS 311, which has a 16” guide bar and can handle up to 55cc of displacement.

A Chainsaw’s Proper Size: What Not To Forget?

When it comes to chainsaws, size does matter. The saw that’s too small won’t be able to handle the job, and the saw that’s too big will be more difficult to control.

That’s why it’s important to choose a saw that’s just the right size for you and the project you’re working on.

There are a few things to consider when choosing the right-sized chainsaw. 

Bar Length

The first is the bar length. The bar is the metal rod that extends from the saw body and holds the chain. Bar lengths typically range from 12 inches to 36 inches.

If you’re going to be doing a lot of cutting, or if you’re working with larger pieces of wood, you’ll need a saw with a longer bar.

For smaller projects, or for jobs that don’t require as much power, a shorter bar will do just fine.

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Engine Size

Another thing to consider is the chainsaw engine size. Engine sizes are measured in cubic centimeters (cc). The bigger the engine, the more power it has.

But that doesn’t necessarily mean that a bigger engine is always better than smaller gas-powered engines. A saw with a small engine might be just the right size for you, depending on the type of work you’ll be doing.

Now that you know all of this, choosing the right-sized chainsaw is easy! Just remember to consider the cutting bar length and engine size before making your purchase.

With these factors in mind, finding the perfect heavy-duty chainsaws for the job will be a breeze.


Now that you know all about the different sizes of chainsaws, it’s time to decide which one is right for your heavy-duty use. If you’re still not sure, feel free to contact a professional or ask around at your local hardware store.

With a bit of research and some important factor guidance, you’ll be sure to find the perfect powerful chainsaws for your needs! Thanks for reading!

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Sam Morgan is a general contractor based in Charlotte, North Carolina. He does home renovations, extensions, landscaping maintenance, and general handyman jobs for homeowners. He is also the part-time content writer at Machine Handyman and a lifelong tools enthusiast. Sam loves hand tools, power tools, machinery, and DIY gadgets of all shapes and sizes! He is always researching the different types of home improvement tools that will get the best results. This site will cover products like power drills, air compressors, saws, nail guns, screw guns, grinders, cutting tools, and many more.

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