Understanding Steel Doors
The Steel Door Institute (SDI) was established in 1954 as a voluntary, unincorporated, non-profit business association whose mission is to promote the use of steel doors and frames in the construction industry. Testing is undertaken in conjunction with the top testing labs in the country like Underwriters Laboratories (UL), National Fire Protection Association (NFPA), American National Standards Institute (ANSI), and American Society for Testing and Materials (ASTM). In addition, SDI works alongside industry associations representing related products such as Door & Hardware Institute (DHI), Construction Specifications Institute (CSI) and the Builders Hardware Manufacturers Association (BHMA) to ensure compatibility with products used in conjunction with steel doors and frames
All You Need to Know About Steel Doors!
Standard Steel Doors & Frame Specifications - Hardware Schedule for Steel Doors & Frames - Basic Fire Door, Fire Door Frames - Installation & Troubleshooting Guide - Maintenance of Standard Steel Doors & Frames - Hinge and Strike Spacing -Electrified Hinge Preparations - Erection Instructions for Steel Frames
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