Determining the Optimal Bay Size for A Semi-Truck Maintenance Bay

Are you a truck stop owner considering the idea of adding a service bay to cater to the maintenance needs of semi-truck drivers? It can be a smart move! With the potential to perform light maintenance tasks like oil changes, transmission fluid replacements, and greasing, a service bay can elevate your offerings and attract more customers. But how do you figure out the perfect bay size to accommodate both solo semi trucks and truck-trailer combinations while ensuring smooth operations and customer satisfaction? Let’s dive into the details.

Understanding Semi-Truck Service Maintenance Bay Dimensions

When it comes to crafting a service bay for semi-truck maintenance, there are a few key things to consider:

Bay Length

First off, you’ve got to think about the length of the bay. Semi-trucks come in varying lengths, but on average, they can be anywhere from 15 to 25 feet long. If you are installing a service pit in the bay and you want to use stairs (verses a ladder), you’ll need to factor in additional lateral room that will be taken up by the stairs. For example, if your pit depth is 6′ deep, your stairs can take up about 7.5′ of lateral space. So a good formula is your truck’s max length plus the lateral run of the stairs. A 25′ semi-truck + 7.5′ stairs = 32.5′ pit length. And then you need additional room between the pit edge to the bay doors – even more accommodate a top that flips forward. You want a minimum of about 3′ of space. Local codes might require more space, so be sure to check. If you are going to service both the truck and trailer at the same time then add the lengths together – the same basic principles apply as described above.

Bay Width

When considering the bay length, you want your crew to have enough room to move around and get the job done right. A wider bay means fewer bumps, side-by-side door collisions and smoother operations. Aim for a bay width of at least 14 feet to give your team plenty of space to work comfortably.


So there you have it! Do a little homework and realistically assess what length of vehicles you are going to service and that will dictate your bay length. The width is fairly straight-forward.

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About the Author

Stan Beck

Stan Beck

Prinicipal, Pit Systems, LLC

Stan Beck is the CEO of Pit Systems, a leading manufacturer of innovative auto service pit systems. With over 10 years of experience in the industry, Stan has a passion for creating high-quality, efficient solutions for mechanics and technicians. He took on Pit Systems with the goal of revolutionizing the way auto maintenance is performed, and the company’s flagship product, the QuickPit™️, has quickly become a favorite among professionals. When he’s not running the show at Pit Systems, Stan enjoys business ventures.