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Who Cuts the Glass for Your Vehicle?

A machine arm holding a flat piece of glass.
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The short answer is that nobody “cuts” windshields. They are manufactured in the shape and size to fit certain vehicles. There are more than 35,000 different sized and shaped windshields in Northern America, each designed to fit a unique make and model of vehicle.

Properly manufactured and installed windshields can be crucial. Have you ever been in a crash? Think about the force with which the airbags go off. The auto glass in your car is part of the passenger restraint safety system. If, for example, the windshield isn’t manufactured properly or installed correctly, your life could be on the line.

Windshields are an integral part of passenger restraint. In many vehicles they work in conjunction with airbag deployment.

Laminated vs. Tempered Auto Glass

Most vehicles sport two different types of glass: laminated and tempered. Most windshields are made of laminated glass and most of the other glass is most likely tempered. Both types of glass require a higher amount of pressure per square inch to break than regular annealed does. Each has additional properties as well.

Be Prepared

The next time your windshield breaks and you need a replacement, ask the automotive glass technician which manufacturer made your glass. This information should also be available right on your new glass. Every windshield has a unique number etched into the corner, called the DOT number, that tells you which company manufactured the glass. You can look up which company made your glass by using this DOT Look-Up Tool (go to the DOT Look Up on the right side of the page).

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Jenna Reed

Jenna Reed is a marketing assistant and is responsible for writing a of variety marketing stories, press relations, public relations campaigns, as well as help manage our various event websites. She also serves as registrar for Key’s Glass Expos events throughout the year, and serves as a brand representative at various outside events. For almost four years, she served as the editor for glassBYTEs™, AGRR Magazine and Auto Glass Journal. She graduated from Radford University with a bachelor’s degree in Media. Jenna lives in Stafford and works tirelessly for injured and abused animals. She is “mom” to a number of rescue cats as well. Find out more about Jenna on Linkedin.

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2 Responses

  1. I have a 1976 Ford Truck with a sliding back glass. It was broken and I am trying to restore the truck and need to get it replaced. Can you cut the glass, safety glass. if I get you the size I need?

    1. Hi Synthia,
      You can book with one of our local glass shops here:
      If you’re having difficulty finding the glass part, you may be able to obtain it from

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