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60-Minute vs 120-Minute Fire Rated Doors: Understanding the Key Differences Fire safety is an essential consideration in the planning and construction of commercial, industrial and institutional buildings. From factories and office complexes to hospitals and shopping centers, selecting appropriate fire protection systems helps improve building safety. Among these systems, fire rated doors play an important role in passive fire protection. They are designed to provide resistance against fire for a specified duration when installed as part of an approved and tested assembly. Two commonly specified fire resistance durations are 60 minutes and 120 minutes. But what is the difference between these two options, and how can building owners select the right one? Let's understand their features, applications and important selection factors. What Are Fire Rated Doors? Fire rated doors are specially designed door assemblies that undergo testing to evaluate their ability to resist fire under ...