How thick can a door be for a door knob? Advantage LU Series | Grade 2 Double Deadbolt | US32D

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How thick can a door be for a door knob? Advantage LU Series | Grade 2 Double Deadbolt | US32D

Status: Open Jul 21, 2026 - 02:36 PM

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Jul 21, 2026 - 02:36 PM

Most standard door knobs are designed to fit doors that are 1 3/8 inches to 1 3/4 inches thick. Some door knobs can accommodate doors up to 2 inches thick with special mounting kits. Always check the manufacturer's specifications for the maximum door thickness.

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How thick can a door be for a door knob?

Advantage LU Series | Grade 2 Double Deadbolt | US32D

Advantage LU Series | Grade 2 Double Deadbolt | US32D Applications For offices, schools, hospitals, apartments, hotel/motel and other public buildings. Door Ranges 1-3/8” ~ 2” door thickness (35 ~ 51 mm). Backset 2-3/4”(70 mm) standard or 2-3/8” (60 mm). Strike 1-1/8" x 2-3/4 x 5/64" recta... See More

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Advantage LU Series | Grade 2 Double Deadbolt | US32D

Advantage LU Series | Grade 2 Double Deadbolt | US32D Applications For offices, schools, hospitals, apartments, hotel/motel and other public buildings. Door Ranges 1-3/8” ~ 2” door thickness (35 ~ 51 mm). Backset 2-3/4”(70 mm) standard or 2-3/8” (60 mm). Strike 1-1/8" x 2-3/4 x 5/64" recta... See More

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How thick can a door be for a door knob? Advantage LU Series | Grade 2 Double Deadbolt | US32D

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