Reinforcing the Door Jamb
construction techniques do not typically ensure that your door jambs are solidly
mounted to a stud in the wall. There
can be a gap between the jamb and the stud of 1” or more and this effectively
weakens your security.
is possible to push the jamb in the center where the lock engages the strike to
a point where it will flex beyond the 1” throw on a deadbolt.
Once that happens, just touch the door and push it open.
way to prevent that is to place some reinforcement between the jamb and that
stud right at the center of the jamb height.
Jamb construction dictates that only the inside trim should be able to be
removed, so remove that trim. That
will expose the amount of space between the jamb and the stud on each side.
What you need now are called shims. You
will need at least two for each side. Shims
are wedge shaped and you can see that if they are moved against each other the
effect is to make them thicker. That
is how we will fill the space. Shims
can be obtained ready-made from your favorite lumber supplier.
the shims in position and then drive them against each other until they are
tightly wedged in place. Then place
one nail or screw through the jamb, the shims and into the stud to hold them in
place. Your jamb is now as strong as
the double stud used to frame the opening. Replace
the trim and you are finished.
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