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How Do I Find the Rating of a Fire-Rated Door?

Class 125 Four-Hour Rated Vault Door

You can determine the fire resistance rating for a fire-rated door by looking at its labeling, documentation, and the information provided by the manufacturer. Here’s how you can find out the rating for a fire-rated door.

  • Labeling on the door Fire-rated doors typically have a label or tag affixed to them that provides information about their fire resistance rating. The label should be visible on the door itself, often on the hinge edge or other easily accessible location. The label will include important details such as the fire resistance rating in minutes (e.g., 20 minutes, 60 minutes), manufacturer information, and other relevant data.
  • Product documentation The manufacturer should provide documentation that includes details about the fire resistance rating of the door. This information might be included in the product manual, datasheets, or other technical documents that come with the door.
  • Certification information Reputable fire-rated door manufacturers have their products tested and certified by recognized testing laboratories or certification bodies. You can inquire with the manufacturer to obtain certification documents that verify the fire resistance rating.
  • Manufacturer’s website Some manufacturers provide product information, including fire resistance ratings, on their websites. You might be able to search for the specific model of the door to find details about its rating.
  • Consult professionals If you’re unsure about how to interpret the labeling or documentation, it’s a good idea to consult with professionals like FIRELOCK® in the Lehigh Valley, who have expertise in fire protection and building codes. Fire safety consultants, architects, engineers, and building inspectors can help verify the fire resistance rating of a door.

When looking for the fire resistance rating, keep in mind that the rating indicates the amount of time the door can withstand exposure to fire and still maintain its structural integrity. The rating is usually given in minutes or hours (e.g., 45 minutes, 2 hours) and reflects the door’s performance under controlled fire testing conditions.

Ensuring that you have accurate information about the fire resistance rating of a door is crucial for maintaining the safety and compliance of your building. Always rely on official labeling, documentation, and reputable sources when verifying the rating of a fire-rated door.

FIRELOCK ® manufactures fire-rated doors to comply with a 1-hour, 2-hour, 4-hour, and 6-hour UL Rated Class 350 rating. Getting a quote for your project is easy—simply click here and fill out the form.

About Firelock

Since 1982, FIRELOCK® has been the world’s leading manufacturer of media-rated modular vault chambers. Unlike poured-in-place concrete vaults, FIRELOCK® vaults are constructed from individual panels, filled with a heat-resistant ceramic material, and they are lightweight, movable, and expandable. When combined with current high-density storage systems, FIRELOCK® vaults offer extremely high space efficiency at a considerable cost advantage per cubic foot of storage. The value of assets stored in FIRELOCK® vaults today reaches hundreds of billions of dollars and ranges from priceless animation cells and World Wrestling Entertainment videos to pharmaceutical research records and U.S. Department of Education student loan information.

With a FIRELOCK® vault, you invest in the highest-performing vault on the market today to ensure the protection of your most vital records and irreplaceable items. You gain the ability to store microfilm, computer media, file servers, and paper in one location, as well as the peace of mind that comes from knowing that all the environmental- and fire-protection elements are in place.

FIRELOCK® has been in business since 1982, and during that time we have installed over 2000 vaults around the world. Because of this broad experience, we know how to build a vault that will provide you with maximum protection today and have the flexibility to grow with you over time.