Step 1 Measure existing door width and height in feet and
inches. This determines the size of door needed. The rough opening should be the
same size as the door. Width: ________________ Height: ________________
Step 2 Measure for sideroom: 33 ⁄4" is required on each side
for installation of the vertical track for standard extension or torsion
springs, or EZ-SET® Torsion Spring. 51 ⁄2" is required for EZ-SET® Extension
Spring. Sideroom: _______________
Step 3 Measure area labeled “headroom” — distance between
the top of the door opening (“jamb header”) and the ceiling (or floor joist).
10" is required for standard installation of extension springs and EZ-SET®
Extension Spring; 12" on standard torsion springs and EZ-SET® Torsion Spring.
14" of headroom required for Carriage House doors. If you have restricted
headroom, special hardware is available. Low headroom hardware is available to
reduce requirement to as low as 41 ⁄2" (minimum with standard extension spring
or EZ-SET® Extension Spring). EZ-SET® Torsion Spring low headroom requirement is
91 ⁄2". Note: If door height extends above the opening, the headroom measurement
should be adjusted accordingly. Existing headroom: _______________ Headroom
Step 4 Measure area labeled “backroom” — distance is
measured from the garage door opening toward the back wall of the garage.
Backroom: _______________ Common garage door sizes include 8' wide x 7' high, 9'
wide x 7' high and 16' wide x 7' high. Holmes manufactures most doors in nearly
any size you require.
The elements of all sectional garage doors are essentially the same.
Framework, panels or skin, track, springs, hardware and accessories are easily
identified once you know where and what to look for. This glossary of door
industry terms defines the most common elements of a garage door.
A fancy name for the bottom weatherstrip. Wood doors usually require a molded
vinyl astragal nailed to the bottom of the bottom rail. All steel doors come
with a vinyl astragal which slides down a rust-free aluminum channel mounted to
the bottom of the door. When the door is closed, the astragal helps create a
seal against the garage floor.
The backroom is the distance from the garage door opening toward the back
wall of the garage. The door height plus 18" is required for proper door
installation. See How to Measure Your Door Illustration, page G4. Additional
backroom is required for installation of an automatic garage door opener.
Bottom brackets are affixed to the bottom corners of a garage door. They
serve two functions: 1) each holds a roller and 2) provides the point of lift
for the cable. All Holmes standard height residential steel doors use
Safe-T-Brackets®. Under normal conditions these bottom brackets cannot be
removed while the door is under tension. Top brackets are located near the top
corner of each door. These brackets also serve two functions: 1) each holds a
roller and 2) are adjustable to provide a tight fit against the jamb when the
door is in the closed position.
Garage doors are said to be bowed when the door sections are not level or
straight. Picture a closed door that appears to be “smiling,” i.e. the corners
(ends) are turned up. On wood doors, bowing is often caused by deteriorating
rails, usually due to moisture. On steel doors, excessive bowing occurs when the
door is not properly reinforced.
These multistrand wire cables are used to attach the door (Bottom Brackets)
to the springs. On extension springs the cable rides over pulleys, while on
torsion springs the cable is wound on drums.
This feature adds to the look of a solid wood door, providing the illusion of
separation between either side of a carriage house door. In other words it
appears that a solid door is two separate swing open doors. Available on
Lodgewood® Collection doors.
A flat piece of composite material added to a flush door to provide the look
of a classic carriage house wood door. Found on Settlers® Collection doors.
These can be added to plain Holmes windows.
Commonly used to refer to larger width doors usually on multicar garages.
Holmes specifically defines them as widths over ten feet.
This means that the steel surface has been raised in relief from the surface.
This can provide a raised panel look or a woodgrain texture.
Commonly called stretch springs, their function is to counterbalance the
weight of the garage door. Extension springs are mounted to the rear track
hangers on each side of the garage. They are attached, at the other end of the
spring, to a pulley. As the door travels, the springs stretch, or compress, to
balance the door weight. Holmes offers standard extension springs and EZ-SET®
Extension Springs. The EZ-SET® Springs are easier, faster and safer to install.
The spring tension is set and adjusted in seconds using a 3 ⁄8" drill, and the
system eliminates the need to manually lift the dead weight of unsprung doors.
EZ-SET® Springs are recommended for Do-It-Yourselfers or others without garage
door installation experience.
Piece of steel hardware that attaches the vertical track to the horizontal
track and supports the horizontal angle at the jamb.
This describes a door with no raised or recessed panels.
In reference to steel, galvanized means the amount of zinc contained in the
steel alloy. The quantity of zinc directly impacts the rust inhibiting
capabilities of the steel. Holmes doors use a hot-dipped galvanized steel to
provide the most rust resistant steel door available.
This term refers to the thickness of the steel used in garage doors. The
smaller the gauge number, the thicker the steel. Prevalent steel gauges used in
Holmes garage doors are 25 and 27.
A glazed section would be one with windows or lites. Glazing/lites are
available in non-insulated single strength, obscure, and acrylic and insulated
double strength and obscure glass. Designer Classic windows or Designer
Etchings® add beauty to any home.
These are added to windows to provide the look of separated lites.
The measurement from the top of the door opening upward to the lowest
obstruction on the inside of the garage. Use this measurement for clearance all
the way back to the end of the horizontal track. Holmes headroom requirements
are listed below: (See Radius) Additional headroom is required for attachment of
an automatic opener. Typically 3" is required for installation of an automatic
garage door opener, but check with manufacturer’s specific requirements. Track
Extension Torsion Radius Spring Spring 12" 10" 12" 15" 12" 14" Special hardware
is available for low headroom that can reduce the headroom requirements to as
low as 41 ⁄2". There are two ways to achieve lower headroom: 1) Double Track Low
Headroom Conversion Kit Hardware to modify the standard track assembly that will
reduce the minimum headroom requirement on standard extension or EZ-SET®
Extension Springs to 41 ⁄2" and on EZ-SET® Torsion Springs to 91 ⁄2". 2) Quick
Turn Brackets (Extension Only) Hinged arm bracket used to replace standard top
roller brackets which will reduce the headroom requirement to 8" on 12" radius
track doors. Not to be used in conjunction with other low headroom options.
To make the independent sections act as a complete door, the sections must be
hinged together. Hinges are found on the end stiles and center stiles at the
meeting rails. All hinges perform two basic functions: 1) With bolts or screws,
they join the sections together and 2) they allow the sections to “break,”
independent of each other, as the door travels. Hinges on the end stiles perform
two additional tasks: 1) They are designed to hold a roller, upon which the door
travels and 2) they are offset to provide a flush fit to the door itself when in
the closed position.
In an effort to reduce energy costs, improve comfort and provide quieter
operation, many customers will look to insulated garage doors. Holmes
residential doors use polystyrene insulation which is environmentally friendly
(contains no CFC’s) and does not lose R-value over time.
Simply stated, this is the upright framing on each side of the door opening.
The vertical track is mounted to the inside surface of the jamb and the stop
molding is nailed to the side surface within the opening. 2" x 6" jambs are
This is the grip handle provided on the inside and the outside of the door to
help manually open and close the door.
Locks, Lock Bars, Snap Latch
There are several types of locking mechanisms used on garage doors, but all
serve the obvious function of securing the door in the closed position. Whether
the form is a lock handle, T-handle, slide-bolt, or 5-pin cylinder, the function
is the same. The main difference is how the door is secured to the track. With
Lock Bars, the handle turns a cam-type plate, which is attached to long metal
bars, each bar running to one side of the door. When locked the bars extend
through the vertical track and the door is firmly secured. With a Snap Latch,
the cam plate pulls a cable, which is attached to a spring-loaded latch. When
locked, the latch fits securely in a notched piece attached to the vertical
track. If attaching an automatic opener, the spring latches and striker plates
should not be installed. The Slide Bolt lock attaches to the inside of the door
and engages into the track. This lock does not have an outside keyed mechanism
or outside handle. It is used primarily when an opener is installed and not
Operator Reinforcement Brackets
A steel bracket that must be used when installing an automatic garage door
opener. Provides proper reinforcement to the top sections and prevents damage to
the garage door.
The framework members on wood doors encompass a true panel. Many steel doors
have a “panel look” stamped or embossed into the skin. This gives the visual
impression of a raised panel.
Holmes Steel Doors are manufactured using factory prepainted steel. The
galvanized steel is painted with a baked-on epoxy primer then given a tough
baked-on polyester top coat to help prevent rust and ensure long term
durability. All Holmes residential doors are available in white, brown, sandtone
and almond colors. These doors do not require a finish coat, but may be painted
with a high quality exterior latex paint to match the house trim.
Holmes Wood Doors have the option of being painted with a prime coat at the
factory. This coat is sprayed on all sides of the sections and oven baked dry.
Prime painting must never be considered as the finished coat.
This is the curved portion of the horizontal track, which allows the door to
go from vertical to horizontal (and vice versa) in its movement. The curve is
measured in inches, thus determining headroom requirements. Holmes uses 12" and
15" Radius. (See Headroom)
The horizontal members of the door’s framework are called rails. There is a
top rail, a bottom rail and several meeting rails. This term is typically used
with wood doors.
A raised panel differs from a flush panel because it provides a third
dimension to the door’s appearance. The panel is raised in relief from the
surrounding panel surface and is available in standard and long designs.
Rear Track Hangers
Often constructed of punched angle iron, these hangers attach the end of the
horizontal track to the garage ceiling.
Think of these as little wheels on long axles. The axles fit into the hinges
or brackets and the wheels roll in the track during the door’s travel. Holmes
uses high quality nylon rollers.
Thermal transmission measurement of heat transfer. The higher the R-value the
better the resistance to heat transfer. Inverse of U-value.
Safety Spring Containment Cable
An extra cable used with extension springs to prevent pieces of the spring
from causing damage or injury in the event the spring breaks. The cable is
threaded through the center of the spring and is secured on both ends of the
horizontal tracks. All Holmes doors equipped with extension springs include the
safety spring containment cable.
Section and Sectional Door
“Sectional door” defines a door having independent sections of framework,
panels or skin. Each section is stacked, one on top of another, to create a
sectional garage door. Residential steel door sections are either 18" or 21" in
height to make up various door heights.
This defines a step pattern configuration of the meeting rails or sections.
When closed, the shiplap helps prevents rain, wind and light from infiltrating
the door between the sections.
A measurement from each side of the door opening, outward to the nearest
obstruction within the garage. Allow on each side of the door 33 ⁄4" for
standard extension and torsion springs and 51 ⁄2" for EZ-SET® Extension Springs
to allow for installation of the track.
Single Car Door
Commonly refers to door width frequently seen on one-car garages. Holmes
specifically defines them as widths up to and including 10 feet. 8' and 9' wide
doors are common single car widths.
The door’s vertical framework pieces are referred to as stiles. There are end
stiles, oftentimes a center stile, and several intermediate stiles. It is
important to note that almost all sectional doors are framed in this manner,
whether the framework is wood or steel. The amount and dimension of the
framework determine the basic structural integrity of the section.
Sometimes called door stop or perimeter weatherseal, it is usually vinyl with
a flexible strip and it serves to seal the perimeter of the door against weather
and light infiltration. Stop molding is nailed to the jamb, outside the door,
and is one of the final steps in the installation process.
Struts, “U” Bars, Trusses
Also called trusses, these “U” shaped metal reinforcement members are
attached to the inside of the door to add strength and rigidity. Struts are
necessary on wide and heavy doors to prevent sagging, bowing and to support
operator attachment and on doors to meet high WindCode® standards.
Method of mechanically securing two pieces of steel together without welding,
riveting or bolting the section together. Eliminates rust where the steel is
A joint with an interior raised portion, fitting with an interior lowered
portion to create a weather-tight seal between door sections. When the door is
closed, the tongue-and-groove joint helps seal out wind, rain and light.
This spring system performs the same counterbalancing function as extension
springs. Holmes offers both standard torsion springs, which are manually wound,
and the patented EZ-SET® Torsion Springs, which is wound using a 3 ⁄8" drill.
Both types of springs are mounted above the door opening, wound, or charged,
then set to a shaft, which runs through the spring. The spring actually turns
the shaft to raise or lower the door via the cables winding on drums. Holmes
recommends that standard/manually wound torsion springs be installed, repaired
or removed only by experienced, professional door installers.
Garage door track usually consists of 4 pieces (2 vertical and 2 horizontal).
The purpose of track is to provide a roadway for the roller wheels. The vertical
track is mounted to the jamb with brackets, on each side of the door opening.
The horizontal track is mounted to the top of the vertical track, the door jamb
and the garage ceiling. The horizontal track contains a curved end called the
Radius. (See Radius) In the closed position, the door is resting in the vertical
track. In the open position, the door is suspended from the horizontal track.
Holmes offers garage doors designed to meet specific wind speeds. These doors
have added steel reinforcement struts, upgraded springing and heavy-duty
commercial grade track and rollers to meet wind speeds and gusts ranging from 75
MPH to 170 MPH.