Sweep Speed

The main closing speed adjustment on a door closer.

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Backcheck

A door closer function that slows the door as it opens to help prevent overextension.

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Astragal

A vertical strip or molding used where double doors meet to improve closure or sealing.

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Door Sweep

A strip attached to the bottom of a door to reduce drafts, dust, and water intrusion.

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Pull Handle

A handle used to pull open a door, often mounted on commercial glass doors.

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Push Bar

A horizontal bar or exit device used to push open a door.

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Electric Strike

An access-control strike that can release a locked door electronically.

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Strike Plate

The metal plate on the frame where a latch or lock engages.

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Deadlatch

A locking device commonly used on commercial aluminum storefront doors.

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Exit Device

Another term for panic hardware used on emergency exit doors.

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