Lock Selection Guidelines

Things to Consider When Replacing a Lock

Tips for Lock Ordering

Commercial and residential high security locks come with one main difference: the lock backset.  On a residential door or a commercial interior door the standard backset, or the distance from the door edge to the center of the lock hole, is 2 3/8″.  On a commercial exterior door (usually metal) the standard backset is 2 3/4″.

Budget Prices for Medeco High Security Locks:

Single Cylinder Deadbolt

This kind of lock should not be used when there is glass on or near the door.  A single cylinder deadbolt uses a key on the outside to lock and unlock the door, and it uses a thumbturn on the inside to lock or unlock on the door.

Double Cylinder Deadbolt

This lock is best used when there is glass on or near the door.  The lock requires a key to lock or unlock the door, both on the inside and the outside of the door.

Captive Double Cylinder Deadbolt

The captive double cylinder deadbolt uses a captive key attached to the thumb turn, and it combines the best features of double and single cylinder deadbolts.  When at home, leave the thumb turn in the lock for ease of use on high traffic doors, but while away, the key/thumb turn can be removed and taken with you.  As with all Medeco deadbolts there are no exposed screws.