Warranty Guide

1-800-663-DOOR masonite.com ©2018 Masonite International Corporation. MIC-18106
Masonite’s Products are designed and built to high industry
standards and are warranted pursuant to the terms of this
document. This warranty applies to doors purchased after
August 1, 2018 for installation in the United States and Canada.
Subject to the exclusions and other terms and conditions in
this document, Masonite warrants to the original purchaser of
the door slab and to the original owner of the residential home
where the door was installed that the door slabs will be free
from defects in material or workmanship from the original date
of shipment by Masonite until the time periods outlined below:
Product
Door
Slab
Masonite
Applied
Finishes
Non-Masonite
Applied
Finishes
Interior Solid
Core Doors
5 Years 1 Year None
Interior Fire
Rated Doors
5 Years 1 Year None
Interior
Hollow Core
Doors
1 Year 1 Year None
Masonite Prefinished Doors: Subject to the warranty exclusions
listed below, Masonite warrants its factory applied finishes
(paints and stains) against peeling, checking or cracking for
one year from the date of shipment to the original purchaser.
Primer coats are not considered a finish and are not warranted
nor are any finishes warranted that are applied by other parties.
Masonite does not warrant that any particular finish will adhere
to its primer coat.
THIS WARRANTY IS NOT TRANSFERABLE.
WARRANTY EXCLUSIONS:
1. Improper installation, storage, care, handling or finishing including,
without limitation, a failure to follow the instructions set forth
below or as posted on Masonite’s website from time to time .
2. Failure to properly maintain the door such as by using harsh
chemicals on the surface.
3. Damage caused by sunlight, water, or extremes of heat
and/or humidity.
4. Doors that are stored or installed in buildings that have wet
plaster or cement or where HVAC systems are not operating and
balanced. (recommended conditions 25%-55%RH and 50°f to 90°f
[
10°C – 32°C
])
5. Any damage to a door installed in any exterior application.
6. Any issue due to improper alteration of the door by other parties
(such as hinge preparation or lock bores).
7. Damage caused by exposure to acid, chemicals or fumes.
8. Locksets, hardware or other components of a door system that
are not provided by Masonite.
9. Any finishes not factory applied by Masonite (primer
coating
is not a finish).
10. Variations in color or texture in any pre-finish coating.
11. Normal wear and tear or natural weathering of surfaces.
12. Problems resulting from misuse and or abuse.
13. Slight expansion or contraction of door panels, jambs and slabs
due to varying environmental conditions changes is considered
normal and not a defect.
14. Structural integrity issues caused by improper installation of
hardware or improper sizing of door slab.
15. Damage or poor product performance resulting from the
installation of product in a condition that exceeds product
design standard or certified specs and or does not conform
to applicable building standards.
16.
Any alteration to a fire or other rated door is not permitted
unless expressly authorized by ANSI standards such as under
NFPA 80 including, without limitation, any trimming or machining.
Any permitted machining, other than function holes, has to be
performed “under label service” which means by a person licensed
by the rating agency and the construction of the door slab must
expressly allow for the machinability.
17. Any warp, size or telegraphing within the tolerances
specified below .
PERMITTED TOLERANCES
1. Size: Width, height and Thickness +/- 1/16".
2. Squareness:+/- 1/8" measured corner to corner across
the diagonal plane.
3. Warp: No more than 1/4" of warp as measured across the
plane of the door in a section no greater than 3-6 x 7-0 in
a 1-3/4" or 3-0 x 7-0 in a 1-3/8" door. For doors that are larger
than 3-6 x 7-0 but no greater than 8-0 in height and 4-0 in
width, the warp shall not exceed 1/4" in a 3' by 7’ section.
INSTALLATION INSTRUCTIONS FOR
NON-RATED DOORS:
The instructions below are highlights of some of the
instructions for door installation. Other installation may
accompany the doors or be posted on Masonite's website
and should also be followed:
 Do not impair the structural strength of the door during
installation, the application of hardware, or the cutting of
the door for lights, louvers, panels, or any other details.
 In fitting for width trim equally from both sides, the maximum
on each side is 1/8th of an inch for 1/4 inch overall trim. If the
door has already been machined then trim from the hinge side
and re-machine the hinge pockets.
 In fitting for height do not trim the top of the door.
Do not trim more than 1/4" o the bottom of the door
unless accommodated by additional blocking.
 Masonite suggests using two hinges on doors up to 60"
in height, three hinges on doors up to 90" in height and
4 hinges up to a maximum of 120" in height. Thread-to-head
wood screws are recommended for fastening all hardware.
Pilot holes are strongly recommended prior to inserting
screws to avoid splitting.
Interior Door Warranty