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What is a double bore door.
Door thickness standard doors are 1 3 8 1 3 4 thick.
Most interior doors are prepped with a single boor hole.
Some door hardware comes with an adjustable backset some you have to specify what you need.
A double cylinder door lock is a type of security device primarily found on residential doors.
There is no thumb turn mechanism on a double cylinder lock.
Instead the door is unlocked with a thumbturn style lever.
Bore hole and cross bore standard door prep is 2 1 8 bore hole with 1 cross bore.
The standard sized bore hole is 2 1 8 in diameter.
Simply put the top hole in a double bore hole door is for your deadbolt and the bottom is for your knob or lever.
This cross bore is where the latch is installed.
If your door has two or three bore holes it s almost certainly an exterior door.
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The diameter of the latch bore is generally 1 to accommodate bolts from either mechanical or electronic locksets.
Double cylinder locks contain two cylinders.
The latch bore also known as the edge bore is the hole drilled from the side of the door into the cross bore to allow the latch of the lock to be installed and to accommodate the sliding of the deadbolt.
I would check the original order from hd and see how it was worded.
They can also be used as the primary locking mechanism on patio or balcony doors.
If your doors are different than this please contact us for help.
A key is required for locking and unlocking from both the exterior and the interior of the property.
In this case you ll likely appreciate an even greater level of security and additional convenience features.
Backset the measurement from the bore hole to the edge of the door.
Homeowners often use these locks in conjunction with other types of security products such as lever locks or handlesets.
They should be able to swap out the fixed door panel for one with no bore without you having to decorate it.