Different door types explained
There are five generic designs of garage door and all manufacturers
follow these basic methods of operation.
The popular term "Up and over" covers both retractable and
canopy doors, however there are significant differences particularly if
you are considering fitting an electric opener.
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Diagrams of the various door types
-
A quick reference matrix of the advantages and
disadvantages of each door type
-
An in-depth review of the advantages and
disadvantages of each door type
1.
Diagrams of the various door types
|
The Retractable Door |
The Canopy Door |
|
 |
 |
|
The Sectional Door |
The Roller Door |
|
 |
 |
2.
Reference matrix of the advantages and disadvantages
of each door type
|
|
Retractable |
Canopy |
Sectional |
Roller |
Side Hinge |
|
Easy to automate? |
Yes |
No (except Cardale doors) |
Yes |
Yes |
Yes with converter bars |
|
Good security |
OK |
Not bad |
Very good - door held in C channel down each
side |
Very good - door held in C channel down each
side |
Depends how many bolts are fitted |
|
Materials available? |
Steel, Timber, GRP, ABS |
Steel, Timber, GRP, ABS |
Steel, Timber, GRP, ABS |
Steel or Aluminium |
Usually Timber |
|
Draft proof? |
No |
No |
Good (can also be insulated) |
Good (can also be insulated) |
No |
|
Drive through width? |
Frame needed - normally 75mm x 75mm |
Frame needed - normally 75mm x 75mm |
No frame needed mounts to rear of brickwork |
No frame needed mounts to rear of brickwork |
Frame needed - normally 75mm x 75mm plus the
thickness of the door on each side |
|
Space needed inside garage to accommodate
the open door? |
The whole of the door height |
Approx' 2/3's of the door height |
The whole of the door height |
varies:
20 x 20cm
30 x 30cm
45 x 45cm |
None |
|
Park on drive close to the door? |
Approx' 1m clearance required in front of
garage |
Approx' 0.8m clearance required in front of
garage |
Yes, no clearance required |
Yes, no clearance required |
Open outwards! |
3. An in-depth review of the advantages and
disadvantages of each door type
Retractable Doors
A large proportion of the door swings outwards as it
opens and then slides away into the ceiling of your
garage, pivot points are located at the top of the
door, consequently you are unable to park too close
to the garage door.
These doors are fairly easy to install with spring
assemblies being fitted to the side frames and
tracks to the top which support the top of the door,
the latter being secured a couple of meters into
your garage. They are however the easiest type of
door to automate with any electric opener being
suitable.
Security is generally pretty good with manufacturers
often fitting four latches, but when automated these
latches are disabled and the door could possibly be
forced open at the base depending on set-up,
however, an automatic de-latching system is
available to counter this problem.
Retractable doors are generally available in all
materials: Steel, Timber, GRP and ABS. Pre-framed
versions are available.
With this door type fitted you will have a fairly
drafty garage and drive-though width will be reduced
because of the side spring assemblies, although some
manufacturers have an optional mechanism which
avoids this.
Canopy Doors
The door swings outwards as it opens (but not so
much as a retractable door) it then slides upwards
into the ceiling of your garage leaving one-third of
the door protruding outside the garage and taking up
less room inside. You are unable to park too close
to the garage door.
Pivot points are located two-thirds of the way down
the door, which helps improve the security of the
door. Pre-framed versions are available.
Canopy doors are the easy to install as the entire
door mounts to the door frame and no tracks are
required inside the garage. The down side is that
automating a canopy door is not recommended - with
the exception of Cardale canopy doors which can be
automated very well with a specially designed
Autoglide opener but it is a little more expensive
than normal electric openers.
Canopy doors are generally available in all
materials: Steel, Timber, GRP and ABS. With this
door type fitted you will have a fairly drafty
garage although the drive though width will not be
reduced beyond the door frame.
Sectional Doors
Sectional doors (made up of several separate
horizontally hinged panels) fit to the rear surface
of the front brickwork of your garage, and as such
need a small amount of clear brickwork to the sides
and top of your opening. The entire door rises
vertically upwards and then backwards into the
ceiling space. No door frame is required which
increases the available drive-through width.
Good security and good protection against the
weather with sealing all around the door, doors with
or without insulation are available. Sectional
doors are generally manufactured in steel although
some specialist timber versions are available.
Easy to automate as any motor is suitable - a soft
start/soft stop opener gives a real touch of class.
Easy to fit as the doors come in kit form and are
assembled in approximately 4 hours.
Roller Doors
Roller doors are a single curtain that rolls up into
your garage ceiling. They fit to the rear surface of
the front brickwork of your garage, and as such need
a small amount of clear brickwork to the sides and
between 450 and 205mm ceiling clearance above the
underside of the lintel. The entire door rises
vertically upwards and then rolls up on a spindle in
the ceiling space.
No door frame is required which increases the
available drive-through width. Good security and
good protection against the weather with sealing all
around the door, doors with or without insulation
are available. Roller doors are either manufactured
in Steel or Aluminium and are either single sheet or
hinged slat. Manual and electric versions are
available. Installation is straight-forward but two
people may be required to lift the curtain onto the
support brackets in the ceiling of your garage.
Side Hinge Doors
A very traditional looking style of door that is
manufactured in timber, GRP or steel. Side hinge
doors open outwards and therefore need good
clearance when being opened so not great if you have
a short driveway or open directly onto a public
area. A good choice if there is no clearance inside
your garage to allow for an up and over door.
Security is good if you have overlapping leaves and
use bolts at the top and bottom of the door.
Automating this door is possible with the use of a
Side Hinge Converter that attaches each wing to the
electric operator. |