Someone measuring the height of the mower deckThe quest for the best-looking lawn possible has many homeowners seeking out tips and tricks for a better cut. One topic that continues to make the rounds online, is whether or not the mower deck should be positioned at a different height in the front than it is at the back. Adjusting the pitch of your deck can make or break the health of your grass. A lawn mower deck that is lower in the rear and higher in front can create some problems for your lawn and mower. One of the issues will be a less efficient or thorough cut. This puts a greater workload on your lawn mower's engine, using more fuel and increasing overall wear and tear.Referred to as deck pitch, manufacturer's like Gravely, considered among the most reliable gas riding mower brands by Consumer Reports, recommend the front be tilted down slightly, not up. In fact, around a quarter of an inch difference between the front and rear of the deck height is considered ideal. Why should you pitch the front of the cutting deck lower?A man mowing his yard with a walk-behind mowerThe reason for pitching the front of the deck lower than the rear, has to do with cutting performance and efficiency. With the front angled lower, a type of pressurized barrier forms that prevents excess air from entering and disrupting the cutting process. To produce the best results, the blades and deck must create a vacuum effect, lifting the grass up prior to contact with the blades. Pitching the front downward helps aid this process and works to prevent clippings from clumping together.While the adage, "more is better," can be true in some situations, adjusting the pitch of your mower deck isn't one of them. Staying between a ⅛-inch and a ½-inch pitch forward will achieve the best results. Going beyond this could shear too much of the grass blades off and scalp your lawn. Scalping the grass removes the majority of the plants ability to gather adequate Sun, stressing it, and turning it a yellowish-brown color. This is why you should consider the 1/3 rule for mowing, which states you shouldn't remove more than a third of each grass blade when cutting. Consider your properties terrain and check your mower's tire pressureScalped and damaged grass after mowing too shortRegular maintenance is also key, as mundane details like your mowers tire pressure (if applicable) can throw off deck pitch. It won't matter how carefully you've measured when setting up your deck pitch, if your front or rear mower tires aren't pressurized properly. Not only can you inadvertently damage your lawn with underinflated tires, being low on air is harder on the tires causing greater wear over time. Consider checking the tire pressure prior to mowing for the best results. Want the latest in tech and auto trends? Subscribe to our free newsletter for the latest headlines, expert guides, and how-to tips, one email at a time. You can also add us as a preferred search source on Google.
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