Sectional Garage Doors

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Sectional

Sectional Overhead Garage Doors

sectional garage door in LPU40 M ribbed designSectional garage doors are one of the most popular and practical choices for style, safety, security and an easy to use and versatile garage door system. They are called sectional garage doors because they open and close in seperated individual panel sections, operating vertically without any swing out from the structural opening and tracking mechanism at all. Because of this operation almost any shape of garage opening can be installed to, i.e. arched, angled corners etc.

Some of the larger manufacturers also produce very high quality timber sectional doors in various quality sourced softwoods and hardwoods such as Hemlock, European Oak, Iroko, Mahogany or Cedarwood. These are made to standard or bespoke designs up to 5000mm wide. If your requirement is for a heavy hardwood timber such as Oak a sectional door would be perfect as up and over and side hinged doors are only made up to 8 feet wide (2438mm) in European Oak.

Sectional garage doors will make full use of the space in front of or behind your garage opening as they all open vertically. This mechanism is ideal for shorter driveways, garages next to pathways and internal space problems with higher 4 x 4 and taller vehicles. Standard sizes can be used in non standard openings as the door panels glide behind the structural opening maing a much more diverse range available when ordering.

WHAT IS A SECTIONAL GARAGE DOOR?
Click here for your fast, easy explanation!

The sectional garage door will, in most instances give the maximum drive through width and height, especially important for the 4 x 4 and people carrier vehicles. Some sectional doors perform better than others in this respect depending on their springing mechanism and gearing.

Insulated Sectional Doors
The fantastic insulation value and security properties of a double skinned, insulated sectional garage door also means that it is an ideal door for a garage not used for vehicles and helps maintain a constant temperature inside.

A garage that is used for an office, workshop, playroom, gym or just lots of household items too large for the house would benefit from an insulated sectional door. Sectional garage doors seal around the perimeter very well to help keep the garage free from dust, leaves, mice or rain ingress.

The insulated sectional doors also offer a far wider range of sizes and generally for most manufacturers also offer greater colour and finish choices as wel as some very modern 'designer' doors.

View the performance characteristics of the Hormann sectional doors - click here

Materials
Most sectional garage doors are manufactured from galvanised steel with almost any colour powdercoat finish or tough new laminate woodgrain finishes available. There are 4 main materials for the sectional door panel construction.

  • Steel (Galvanised)
  • Timber (hardwood or softwood)
  • Aluminium (limited designs)
  • GRP (fibreglass)

The steel sectional door panel sections of most manufacturers are woodgrain embossed on the front surface as standard to give a very practical and aesthetically pleasing appearance. Smooth finished panels are readily available in steel and give a very simple contemporary look to compliment modern architecture. These sectional doors are known as 'silkgrain' doors and can be viewed in our product catalogue. There are also 'Micrograin' and Decograin laminate foil coated doors.

Timber sectional door panels are available in traditional boarded designs or cassetted panels as standard but with modern machinery and the use of composite timber panels almost any design can be routed into the door sections for an individual sectional door to be produced just for you.

sectional door video
Video of door closing

Operation
The mechanical design of any sectional garage door is quite different to that of a one piece up and over garage door. The spring system will provide better and smoother assistance during operation and will be particularly useful on larger sized doors. All sectional garage doors can be either manual or remote control operated and in either case are very smooth and quiet because of excellent construction and design elements. The panels of any sectional door are required by law to have anti entrapment design at various points to prevent potential injury.

Up and over garage doors with retractable operating gear will always reduce your drive through width as the lifting arms sit between the framework when the door is open.

A sectional garage door will give you the full drive through width when open as there are no side lifting arms involved. The drive through height will also be higher than an up and over door.

Restricted drive through with retractable gear
Up and Over Garage Door

increased drive through with a sectional door
Sectional Garage Door

Sizing Information
The sectional garage door is extremely versatile in its sizing for 2 reasons - Firstly the entire sectional door itself not swinging through the opening means that when the door is installed to the inside of the garage opening the exact size of the door is not as important as an up and over door and the steel fixing frame is designed to be either partially viewed or totally concealed.
You can install a sectional door to an opening that is too big or too small and it will still operate, you only have to concern yourself with sufficient internal sideroom and headroom and what it may look like once fitted.

Secondly the strength in the panel, particularly the double skinned panel means that large widths are not a problem, as well as heights up to 3000mm. The largest available domestic sectional garage door width is currently 7500mm. Purpose made sizes do not cause a problem at all in steel, timber or GRP, but there are a vast range of standard sizes readily available.

As the sectional door does not go through the structural opening you can install standard sized doors behind openings that are slightly smaller - as long as the door design is not intruded upon, usually only on panelled door designs.

Installation positions
Sectional garage doors were originally designed to be installed behind the structural opening due to the original front mounted torsion spring mechanism and the larger guides. The benefits of drivethrough width and height were also maximised by this installation position. The majority of sectional doors we install today are still like this but it is now possible to install any of the doors inbetween the structural opening with adapted installation kits and other spring mechanism variations. Sufficient headroom for the curve of the tracks and depth for the length of the tracks is usually the only issue to consider if constructing your garage from new. Consider the Hormann and Garador Z track system (single door sizes) or the Carteck range of sectional doors for garages with limited headroom internally.

Finger trap protection on sectional garage door outside
  • Finger entrapment is impossible due to design of door panel sections.
  • Easy to operate manually with excellent spring assisted mechanism and smooth, quiet movement.
  • No need to step away from the sectional garage door when operating due to the vertical lifting operation design.
  • Manual operation is much easier than up and over garage doors, especially on larger sizes as the springs assist throughout the entire movement of the door.

Sizing Information
The sectional garage door is extremely versatile in its sizing for 2 reasons - Firstly the entire sectional door itself not swinging through the opening means that when the door is installed to the inside of the garage opening the exact size of the door is not as important as an up and over door and the steel fixing frame is designed to be either partially viewed or totally concealed.
You can install a sectional door to an opening that is too big or too small and it will still operate, you only have to concern yourself with sufficient internal sideroom and headroom and what it may look like once fitted.

hormann steel sectional white twin garage door in arches with jeepSecondly the strength in the panel, particularly the double skinned panel means that large widths are not a problem, as well as heights up to 3000mm. The largest available domestic sectional garage door width is currently 7500mm. Purpose made sizes do not cause a problem at all in steel, timber or GRP, but there are a vast range of standard sizes readily available.

As the sectional door does not go through the structural opening you can install standard sized doors behind openings that are slightly smaller - as long as the door design is not intruded upon, usually only on panelled door designs.

Why insulated?
2 simple good reasons for specifying an insulated sectional garage door - panel strength for security and outstanding thermal insulation properties.

All insulated sectional garage doors supplied by The Garage Door Centre are CFC free, foam filled, double skinned galvanised steel panel construction NOT single skin panels with polystyrene stuck to the inside face like some cheaper manufacturers. The construction of the panels, whether 20mm or 42mm in thickness gives incredible strength and reduces damage from knocks and bumps.

Properly installed an insulated sectional door will give an incredibly good U value rating and reduce any heating costs on adjacent rooms such as utility rooms, etc. during the winter whilst maintaining a good constant temperature inside the garage all year round, ideal for valuable collectors car storage or valuable items of any sort that may suffer in damp conditions. Extra equipment is also now available to further increase the insulation properties if required.

Insulated sectional garage door panel section
  • The additional cost for a 40 - 45mm double skinned insulated sectional garage door as opposed to an uninsulated single skin version is normally around 15 - 20% extra on the garage door price only.
  • 20mm double skinned doors are available with Hormann and Garador as well but be aware the panel designs and options may be different.
  • All other components are generally common to either garage door panel type such as weatherseals, locking, paint finish, etc.
    The sectional door always offers high levels of weather sealing.

Manual or Remote Control?
The sectional garage door is one of the few garage door types where manual or electric operation gives equal levels of security, mainly due to the geometry and design of the door mechanism itself. The 4 main manufacturers - Hormann, Carteck, Garador and Novoferm all have different spring lifting operation methods but the one common factor is ease of operation, especially compared to a one piece up and over garage door.

A remote control electric operator is normally highly recommended if the main use for the garage is for a vehicle or the garage door is larger than 3 metres wide and used frequently. Of course always remember it is incomparable to open a garage door at the simple push of a button rather than unlocking a handle and lifting a manual door, especially in the dark or rain! The latest range of electric operators are very intelligent and offer 2 way communication to give an indication of whether your door is open or not from the hand set. See Hormann Bi Secur.Hormann sectional security

Security
garage door securitySectional garage doors are definitely one of the most secure types of garage door available due to the excellent panel construction and the fact that the door is held into steel guides by at least 5 rollers each side of the door giving great resistance to forced entry ettempts. Combined with a good quality electric operator the door can be nearly impossible to force entry without very special tools (and a lot of noise!).

The Hormann Supramatic and Promatic Bi Secur electric operators have additional locking in the operator boom in the form of a steel hook which holds the door panels firm at the top as well as being held by the motor itself.  Electric operators from Garador, Marantec, Carteck and Somfy also offer high quality specifications and security.

Pedestrian Door Option
Sectional with pedestrian door

A masterpiece of engineering, the optional pedestrian (or wicket) door is a superb solution for the household using their garage regularly but not necessarily for a vehicle. Regular access to the freezer, tools, bikes, etc. is easy with the large centrally positioned door, which can be used without opening the entire garage door.

Excellent high security is standard with an optional overhead door closer to ensure the door always stays closed. The bottom threshold is only 10mm high making access with bikes, scooters, wheelbarrows and the like very easy indeed.

The sectional door with wicket inset door is only available in the 42mm double skinned insulated option due to panel strength required overall. Several beautiful new finishes are now available including the Mahogany, Rosewood, Dark Oak, Night Oak and Golden Oak vinyl coated woodgrain finish.

Manufacturers for this type of sectional garage door include Hormann and Carteck

For an overview on the Hormann range of sectional garage doors click here

Sectional Garage Doors Overview

Sizes
Manufacturers order reference sizes for sectional garage doors always refer to the exact structural opening sizes when the door is being installed to the inside face, however the size of the garage opening can vary considerably as sectional garage doors do not swing through the opening and can therefore be installed behind narrower or wider openings as long as the internal pier return size is sufficient.

Sectional garage doors can be installed between structural openings but there is no exact formula for frame size allowance as the headroom required varies considerably depending on the gear type ordered. Generally the overall width of most sectional garage doors including the tracks and framework is 200mm wider than the ordering size - allowing for some tolerance.

Sectional garage door viewed from inside - Hormann torsion spring

Inside view of a typical manually
operated
sectional garage door

Panels
The panel construction of steel sectional garage doors is usually either single skin galvanised steel or double skin with an insulated core. The thickness of double skinned door panels will vary from 20 to 45 mm giving greater insulation properties the thicker the door panel. A range of timber and GRP sectional garage doors are also available and the GRP (fibreglass) doors are available as single or double skinned insulated panels, timber offers its own natural insulating properties the insulated door panels also offer greater strength and resistance to damage from impact.

Timber sectional doors have the greatest flexibility of design and Hormann doors offer a routed door panel option where the pattern can be specifically chosen and cut into either composite Nordic Pine or Hemlock timber surface. Vertical lines can be achieved using this method.

Door Operation
Sectional garage doors have a varied choice of either torsion or tension spring lifting mechanisms. The spring position can be either side mounted tension, front mounted torsion, rear mounted torsion or horizontal inside track mounted tension.

Some manufacturers also produce doors with springs set into the horizontal guide channels at high level such as Carteck.


Z track side mounted tension spring system  N track front mounted spring system    L track rear mounted low headroom track system

Each different option requires a slightly different headroom requirement and the important structural fixing points vary for installing the springs and tracks. Proper installation of these springs can be paramount to correct, trouble free, safe operation. All European manufacturers now provide zinc plated or galvanised springs as standard with only inferior spring operating mechanisms coming from American manufacturers.

Handles/Locking
All manufacturers of sectional garage doors offer the handle as an option as most are remote control operated. The handles and locking methods offered vary considerably from single point rotary latch to cable operated double latch. Black handles again are the normal standard with euro profile cylinder locking. Many coloured or metallic finishes are offered by most manufacturers.

Frames
Sectional garage doors do not have a sub frame like an up and over door as it does require a structural surface to install directly to or, if inbetween fitted, a special installation kit. The frame is not box section like the up and over and is not a head and legs that lock together. The frame section is really only to carry the operating gear and spring mechanism and relies on a good, straight, sound surface to install onto.

When the door is installed inbetween the opening you will always require a cover strip of some kind as the legs are predrilled for behind fitting as well as being only available in limited colours. This can be timber, Upvc or special designed cover strips available from Hormann.

Weatherseals
All sectional garage doors come with a good level of high quality rubber weatherstrips already built into the bottom door panel, the sides of the frame legs and the top panel fascia or door panel. Properly installed with a level floor the sectional door can provide a very high level of sealing against wind, rain, dust and vermin.

electric openers for sectional doorsAutomation
All sectional garage doors can be automated easily as they are very well balanced all the way through their operation at all sizes and can be automated using almost any good make of garage door operator.

The best levels of security will be obtained by using an operator with a built in anti force mechanism built into the towing arm area. The Hormann Promatic and Supramatic operators have a patented latch device and Marantec operators have an electronic mechanism to ‘reset’ any forced movement.
Combined with a good operator the sectional garage door will be one of the most secure doors available for your garage with all the benefits of insulation and panel strength included.

       
Hormann Sectional Garage Doors Carteck Sectional Garage Doors Wessex GRP Sectional Garage Doors Gliderol Sectional Garage Doors

For brochures and further technical details call free on (0800) 525442 or Email

The Sectional Garage Door versus The Roller Garage Door >


 sectional overhead garage door illustration


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