How To Measure A Chain Saw Bar? – Complete Guide

There are several factors that influence bar length. The two most important are the displacement of your engine and the maximum cutting diameter that you want to achieve with your saw. If you have a large displacement engine, chances are it will be harder for you to run a shorter bar on it because of its power output. Conversely, smaller displacement engines may benefit from using shorter bars due to their lower power output. You also need to think about the types of trees you will be cutting and how big they are. If you need your saw to get through larger logs, then a longer bar will get the job done more quickly than it would for smaller ones.

Before you start looking for a bar, it is important to know how big the logs are that you want to cut. This will help you determine how long your bar should be. Use this information to find the right bar length below:
1) Determine maximum cutting diameter (Max Diameter = Max Log Length + 5″)
2) Find the appropriate bar for your engine displacement
3) Make sure to add 2″ of extra length to accommodate for wear and future maintenance.

1) Max Diameter = Max Log Length + 5″: 

2) Bar Size: 12″ Bars For Engines with up to 25cc Displacement 18″ Bars: 28cc – 50cc
20″ Bars: 53 cc – 88cc.

22″ Bar: 90cc and up 3) Add 2 inches as a safety margin for future maintenance. Keep in mind that as you use your saw, it will lose power which can cause the bar to wear down. Eventually, you are going to have to replace the bar but adding the extra length initially means that this replacement will not require an entirely new-sized bar.

If you need to measure the pitch of a given chain, here’s an easy trick: 

1) Count how many drive links there are in 10 inches (25 cm), and multiply by 3.18 (the number of millimeters per link). That tells you approximately how many teeth it has. 

2) Divide that number by 2. If the result is even, round down to the nearest size; if it’s odd, round up to the next size. In other words, if your answer is 20, then it has 12 teeth — 20 divided by 2 equals 10 with a remainder of 0. If your answer is 32 then it has 16 teeth — 32 divided by 2 equals 16 with a remainder of 16.

A chain saw bar is an important part of the saw, and it’s important to get the size right. With this easy-to-use guide, you’ll be able to measure your bar quickly and easily. Whether you’re a professional or a DIYer, this guide will help make sure your chain saw is ready to go!

A handy guide on how to measure the chain saw bar gauge so you can find the perfect replacement chain. This guide includes clear, concise instructions with accompanying pictures to make it easy for anyone to follow. Whether you’re a professional chainsaw operator or just looking to do some DIY work around the house, this guide will help you get the job done right.

Chain Saw Size 

Small (0 – 18″)
Large (18″+)
The diameter of the bar is equal to the Chain Saw Size.

Maximum Cutting Capacity Rules

Small Engine (<25cc)  = 12″ Bars
Large Engine (>25cc) = 20″ Bars

10-12 Teeth = Small Chains 12-16 Teeth = Large Chains 16-20 Teeth = Extra Large Chains 20+ teeth can’t be measured with this guide. A chain saw bar is an important part of the chain saw, and it’s important to get the size right. With this easy-to-use guide, you’ll be able to measure chain saw quickly and easily. Whether you’re a professional or just looking to do some DIY work around the house, this guide will help make sure your chain saw is ready to go!