Installation Guide

©2015 Trinity Glass International, Inc.
DOC1INSF 6/15
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FIBERGLASS DOOR SYSTEM
Installation Instructions
Thank you and congratulations. You have just
purchased a premier fiberglass entry door system. If
you have purchased an unfinished door system, we
recommend that you paint/stain before installation.
Refer to the finishing instructions section in this
document. Please follow the instructions carefully for
proper installation.
CAUTION: Some door units are heavy and may
require two people to lift and install. Use proper
lifting techniques and follow safe working practices.
Tools and materials needed:
Tape measure, Hammer, Square, Level, Wooden shims,
#3 Phillips screwdriver, #8 x 3" Exterior grade wood
screws, Power drill with Phillips drill bit, Safety glasses,
Caulking gun, quality clear exterior sealant, Putty
PARTS OF A DOOR SYSTEM
Before you begin:
1. Do not remove the plastic door plug until instructed
to do so. This is used to keep the door system closed
and aligned. If the door unit has handles on the latch
and hinge jambs, remove them. Also, cover the door
sill to protect against harmful particles or scratches
during installation or between a long period of building
construction and occupation. Note that any contact
with wet cement or cement powder will damage the sill
finish.
2. Make sure that the new door will properly fit in your
frame opening. The recommended rough opening is
3/4" wider and 1/2" higher than the door prehung unit.
Resize the opening if needed. Verify that the frame
opening is level, square and plumb. It is important that
the floor is level. Minor out of level conditions at the
sides and top can be corrected by using shims but
major misalignments need to be corrected before
installation. Diagonal measurements must be equal to
within 1/4" (as shown below). Note that the latch jamb
should be adjusted for plumb so that the weatherstrip
on the latch jamb is evenly compressed when the door
is closed. Use a Carpenter’s square and level to check
for squareness, level and plumb of the frame opening.
hinge
brickmold
door sill
hinge
jamb
latch
jamb
head
brickmold
door sweep
head jamb
latch
brickmold
Square
Level

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