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How to Measure a Mower Deck

lawn mower deck

A lawn mower is an essential tool for maintaining a well-manicured lawn. The mower deck is the part of the lawn mower that houses the blades and is responsible for cutting the grass. In this article, we will discuss how to measure a mower deck and why it is important to do so.

Why Measure a Mower Deck?

Measuring a mower deck is important for several reasons. First, it allows you to determine the size of your deck, which is important when purchasing replacement parts or accessories. Also, this can be helpful to give you an idea of how long it may take to mow your lawn, if you want to purchase a bigger or smaller deck.

In addition to understanding the measurements, you can become familiar with your equipment and take out any debris that may be caught underneath.

Deck Size vs. Deck Dimensions

Before we dive into how to measure a mower deck, it is important to understand the difference between deck size and deck dimensions. Deck size refers to the width of the deck, while deck dimensions refer to the length and width of the deck. Both are important to know when measuring a mower deck.

Measuring the Deck Size

To measure the deck size, you will need a measuring tape. Start by locating the discharge chute on the side of the mower deck. This is where the grass clippings are ejected from the deck. Measure the distance from one side of the discharge chute to the other side of the deck. This will give you the width of the deck, which is the deck size.

Measuring the Deck Dimensions

To measure the deck dimensions, you will need to measure the length and width of the deck separately. Start by measuring the length of the deck from the front to the back. Then, measure the width of the deck from one side to the other. These two measurements will give you the deck dimensions.

Tips for Accurate Measurements

When measuring a mower deck, it is important to be as accurate as possible. Here are a few tips to ensure you get accurate measurements:

  • Use a measuring tape with clear markings and a locking mechanism to keep the tape in place.
  • Measure from the outer edge of the deck, not the inner edge.
  • Measure in inches for more precise measurements.
  • Measure multiple times to ensure accuracy.


Measuring a mower deck is not hard and by just having a tape measure you can knock it out. Remember to measure both the deck size and deck dimensions for a complete understanding of your mower deck. By following these tips and regularly maintaining your mower deck, you can keep your lawn looking its best all year round.

Have you encountered any issues with your mower deck?

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