Cross Bore Hole In Door

A cross bore is the largest hole and passes through the door from one side to the other and it is where the actual door knob is inserted and mounted.

Cross bore hole in door.

If it seems to fit into the bore ok go ahead and install the latch into the edge of the door. 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. Once you get the sides of the hole filed out enough test fit the outside half of the lockset. The standard measurement for a bore hole is 2 1 8 inch in diameter and the standard measurement of a cross bore is 1.

Backset the measurement from the bore hole to the edge of the door. Door hardware made to fit the small bore hole 1 5 8 inch to 1 1 2 inch. Bore hole and cross bore standard door prep is 2 1 8 bore hole with 1 cross bore. Door hardware made to fit the small bore hole 1 5 8 inch to 1 1 2 inch.

Some door hardware comes with an adjustable backset some you have to specify what you need. The latch will fit into the 1 inch hole. The diameter of the latch bore is generally 1 to accommodate bolts from either mechanical or electronic locksets. It is in the bore hole where the latch fits in.

The center of this hole should be located 2 3 8 inches or 2 3 4 inches back from the edge of the door. Prime line security screen or storm door lever set lock cylinder diecast black 36 model k 5092 77 63. X 1 3 4 in classic bronze 11. If your doors are different than this please contact us for help.

You may need to drill the cross bore hole for the latch deeper. Backset 24 model u 9537 32 78. Door thickness standard doors are 1 3 8 1 3 4 thick. Prime line lock and door reinforcer 5 1 2 in 2 3 8 in.

Using ryobi wood metal door lock installation kit. Thick solid brass lock and door reinforcer 2 1 8 in. Double bore 2 3 8 in. Doorknobs that fit smaller than standard bore holes.

The hole has a larger diameter because it is the one that houses the doorknob. The latches were designed for use with doors that have a 2 1 8 dia. Door hardware made to fit the small bore hole 1 5 8 inch to 1 1 2 inch. This is the backset dimension bore a 1 inch hole in the edge of the door located on the centerline of the 2 1 8 inch hole.

Generally the largest diameter for the bore hole is 2 1 8 inches. The is cross bore adapter is compatible with defiant glass knob sets as it improves the strength of installation for the defiant glass knob sets. There is also a cross bore with 1 inch in diameter and stretches from the edge of the door and runs over the bore hole. Bore a 2 1 8 inch hole through the door.