Fundamentals of Builders Hardware

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Door Closers - Learn about:

• Why are door closers necessary
• Door closing force
• Internal parts of a door closer
• Recommended applications
• Abbreviations used in the field

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Exit Devices - Learn about:

• What is an Exit Device
• History of exit devices
• Application for single and double doors
• Mechanical functions
• Abbreviations used in the field

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Mortise, Bored and Aux. Locks - Learn about:

• Door cutouts
• Application for single and double doors
• Basic security features
• Strikes
• Abbreviations used in the field