How To Measure Chainsaw Bar In 3 Easy Steps

a stihl chainsaw

Today, it is not just the professional loggers that are trying to look for the right chainsaw. People who take care of trees or need to cut firewood at home are also looking to buy one. When it comes to buying chainsaws, there are a lot of things that you need to consider.

Different chainsaws you can buy in the market today are all designed for very specific needs. Buying the wrong one can actually cause a lot of problems simply because a chainsaw that is too large will be too heavy, and one that is too small also has less power.

When it comes to the chainsaw’s size, you might actually be referring to the chainsaw guide bar. The guide bar is also known as the chainsaw bar and it is basically the cutting area of the chainsaw. Knowing how to measure this area is important for cutting wood properly and for buying the right saw parts.

Things You Will Need To Prepare

1. A Flat Surface

wood planks

If you want to measure chainsaw bar, you will have to make sure that you are able to put the chainsaw in a flat table so that you will be able to easily take the measurements without injuring yourself. You can also lay the chainsaw flat on the ground or use a workbench to do this.

2. A Measuring Tape

a measure tape

This will be used to help you measure the bar properly. If you do not have one, you might be able to use a ruler or a tape measure. You can also use other measuring tools. Just make sure that the tools that you are going to use can measure the chainsaw bar in inches.

3. Tools


Depending on the type and model of your chainsaw, you might have to open the housing of your chainsaw so that you can get an accurate measurement. You will have to make use of the correct tools to remove bolts or screws.

4. Work Gloves

work gloves

You will be handling the chainsaw’s spark plug and you will also handle the area near the saw chain. Wearing work gloves will help protect your hands from injuries and it can also be used to keep your skin away from oil or gasoline. You can also use rubber or leather gloves instead.

How To Measure Chainsaw Bar In 3 Easy Steps

Step 1: Understanding The Task

fixing chiansaw

Most people measure the entire length of the chain when measuring the chainsaw bar. But this is not actually necessary if you only need to get the chainsaw’s cutting length. You need to keep in mind that only the bottom portion of the saw will cut and not the tip or the other parts.

There is also no need for you to remove the chain in most cases. The thickness of the bar is also not important especially when you only need to get the length of the bar. You should also keep in mind that if you are looking for a chain or bar replacement, most manufacturers will give the size based on length.

Step 2: Safety First

wearing protective gloves holding chainsaw

If you plan on measuring the bar, always put your safety first. You will have to use your work gloves and put your chainsaw on a flat surface. Make sure that there are no children and pets around while you work so you can avoid accidents. You should also remove the spark plug to avoid accidental startups.

Step 3: Start Measuring


Using the necessary tools, you will have to make sure that all of the obstructions are removed. You might have to remove the casing so you can measure the bar from end to end. Make sure that you are measuring using a straight line. You can also remove the casing and measure the bar from end to end.

When measuring from the casing, measure the bar towards the tip or the cutting end. After doing so, you will then have to measure from the tip towards the casing. This will allow you to double check the results or to make sure that you have the correct length. Always round the length to the nearest inch.


When it comes to measuring the chainsaw, you need to know that most manufacturers will only refer to the length of the bar and not the other dimensions when selling replacements. You should also know that the length of the bar can also help you know the chainsaw’s cutting edge.

To do this, you will have to secure a measuring tape and you will also have to stay safe by making sure that the spark plug is already removed. You can then try to measure the bar from the casing towards the tip, or you can remove it completely and measure the bar from end to end.

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