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What is the order of steel doors, from lowest to highest quality?

April 26, 2017doors Highest lowest quality steel

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What is the order of steel doors, from lowest to highest quality?

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1. 25-gauge door: used as a utility door, front door, etc., but not for a fire-retarding door; the stiles are made of wood. 2. 24-gauge energy-saver door: a 20-minute fire door with the stiles made of wood. 3. Steel-edge instead of a wood edge: a 90-minute fire door with the stiles made of steel.