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How to install a threshold.
Tools / Materials (See Below for
Adjustable metal threshold (usually includes
Power drill and appropriate bit (usually a
Fine hand file (for metal)
In installing a door and its frame, you'll need
to install a proper threshold to help secure the interior of your
house from the elements that might otherwise be introduced to the
interior of the house through the bottom crevice made between the
door and the floor. With a properly installed threshold, the
bottom of the door will become snug tight so as to be a part of the
door system that acts a shield from the elements, top to bottom.
Caution: When dealing with sharp objects, such as a
power drill, hacksaw and carpenter's knife, make sure you take precautions;
read all product manufacturer instructions.
Installing a door threshold can be done in a few steps,
and here's how:
With a tape
measure, measure the width of the inside door frame so that you
can buy a threshold that is nearly or exactly the same size in
width; of course, your safe bet is to buy an adjustable
Then, as may be
necessary, cut the threshold to the exact measurement size of
the width of the inside door frame with a hacksaw; you may have
to use a carpenter's knife to correspondingly cut the vinyl
lining/feet (for bottom of threshold) and thin vinyl covering
(for top of threshold) to size.
After cutting, if
you find that the saw-cut of the threshold leaves a metal edge that
is too rough or otherwise sharp, gently file it down with a fine hand file.
Depending on the
type of door frame you have, in order to permit the threshold to
properly fit at the floor bottom of the inside of the frame,
using a handsaw, cut a notch in the lowest part of the door
frame's inside stop.
Then, set the
threshold where it is supposed to be, at the floor bottom of the
inside of the door frame, to see if the door will shut
completely without being obstructed by the threshold, itself.
If you find that the threshold obstructs the closure of the
door, try taking advantage of the adjustment feature of the
threshold in attempting to remedy the obstruction problem; see
the threshold manufacturer's instructions. If adjusting
the threshold does not remedy the problem, the door is too tall
and, thus, the bottom portion of it should be trimmed. (See the
section on how to trim the bottom of a door.)
threshold finally cut to size, and after determining where on
the floor pilot holes need to be drilled in to correspond with
the hole openings found on the threshold, itself, use a power
drill attached with the appropriate bit to actually drill in
these determined pilot holes.
If not already in
place, put into place the vinyl lining/feet in the groves
underneath the threshold and then put the threshold, itself, yet
again, at the floor bottom of the inside of the door frame.
At this time,
close the door completely to make sure the door and threshold
work together to provide a tight seal at the bottom of the door;
if there is not a tight seal, you may have to slightly adjust
the threshold to the appropriate height.
threshold finally in place for good, using a screwdriver, screw
in the screws through the hole openings of the threshold (and
ultimately the aligned pilot holes underneath the threshold) in
order to secure the threshold in place.
Then, put into
place the thin vinyl covering, which comes with the threshold,
over the hole openings of the threshold now occupied by the
screws so as to, by design, hide them from view. (This is
the same vinyl covering that usually is already in place on the
threshold when first buying the threshold from the store that
you immediately remove in the first place to gain access to the
hole openings through which the screws go in order to secure the
threshold will help seal your door and, in effect, ultimately
contribute to the energy efficiency of your house.
Handyman Zone Team
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