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GRP Side-Hinged Garage Doors.

Wessex Door brand has been sold (December 2022) and for the foreseeable future will be unavailable. GRP Side hinged garage doors give a garage a traditional look with easy personal access and all at affordable prices. Pre-framed and in many standard sizes, they are available in white and woodgrained colours. 50/50 and 2/3:1/3 door opening options available. The Wessex side-hinged GRP garage doors offer the stability of plastic but the beauty of timber or high gloss white. Sturdy impact resistant GRP door leaves bonded onto strong but light steel door chassis. Movement free (no door binding etc) and rot / rust free. Ideal for coastal or damp applications. GRP side-hinged (fibre glass) doors are pre-hung in the factory on a galvanized and painted steel subframe for quick and easy garage door installation. Multi-point locking secures both door leaves top, centre and bottom. Wide range of designs, 21 colours and available in many standard sizes.

GRP side hinged garage doors explained in more detail.

Wessex Door brand has been sold (December 2022) and for the foreseeable future will be unavailable.

What is GRP exactly?

Glass reinforced plastic, commonly known as GRP or glassfibre, consists of thousands of fine glass strands formed into a matt or fine mesh, which is laid into a mould along with a polymer resin. The resin takes the shape of the mould and sets after a given curing time. Robin Reliant bodies, early canoes, fake chimney stacks, porch canopies and other lightweight but very durable building products are made from glassfibre.

The benefits of GRP for side-hung garage doors.

Wessex Doors developed GRP garage doors as a spin off from the boat & yacht building industry of the South Coast of England.
  • GRP is ideal for wet or damp situations, and as material is totally waterproof and resistant to rot.
  • Dimensionally very stable, GRP will not shrink or expand, warp, twist or crack.
  • No more planing down swollen wooden doors only to be left with large gaps when summer comes!

GRP does not require a lot of maintenance, just the occasional wash down with a soft cloth and a bucket of water. Some people apply car polish to add a protective film to the door, helping to keep a showroom appearance over many years.
  • GRP has natural wood beauty but without the maintenance.
  • The handmade timber moulds are lightly sandblasted to enhance the grain texture of wood.
  • This is replicated in the door, revealing intricate grain detail and subtle features such as dowelled joints, stile and rail detail, beautiful deep panel mouldings and glazing mullions.
  • Smooth gloss white models also available.
  • As each door leaf is cast as a whole unit, there are no seams, welds or joints, greatly enhancing the beauty of the doors.
Fort GRP solid woodgrain finish in Green colour.
Fort GRP in Green.

Wessex Platinum GRP side hinged garage doors in more detail.

  • The construction method of the side hinged large door range means that each door leaf has very strong light metal frame or chassis that provides maximum stability and strength.
  • Strong centre rail visible on the inside hold the lock. Please see photo of the back of the door.
  • Please note however when viewed from the front each door leaf has neat and visible painted perimeters.
  • 20mm wide visible chassis in either White, Black or Brown to compliment your door colour. Frames are also available to match.
  • Steel chassis are galvanised and powder coated and as long lasting as GRP panel itself.
  • The rear face of the side hinged doors is white as standard with the chassis in white, brown or black.
  • Side hinged doors have a black handle that operates a locking latch to the active leaf, whilst the inactive leaf is secured by a shoot latch bolt.

Black lock handle that operates a locking latch to the active leaf.
Black lock handle that operates a locking latch to the active leaf.
Top & bottom shoot bolts secure the inactive leaf
Shoot latch bolt secures the inactive leaf.
The inside view of the Fort GRP Platinum side hinged door.
The inside view. Fort GRP Woodgrain side hinged door.

Chassis corner details in each of the colour options.

White doors will come on a White chassis. Ebony woodgrain doors come on Black chassis. All other woodgrain colour doors come on Brown chassis.
Red, Green an Blue colours and Coastal colours come on either on a White or Black chassis. Please see frame colour corner details below.
Wessex Platinum side hinged brown chassis
Visible Brown chassis corner detail.
Wessex Platinum side hinged black chassis
Visible Black chassis corner detail.
Wessex Platinum White chassis corner detail.
Visible White chassis corner detail.

Pre-Fitted Frames

  • Side-hinged doors are supplied with a pre-fitted steel frame that provides simple installation and a stable platform for door operation.
  • Frame uprights are 60mm wide as standard and the head is 60mm high.
  • Frames have an exterior powder coating available in white, brown, or black. Please specify the colour required when ordering.

Fort GRP range side hinged door finish and colour choice.

  • Fort uses the finest softwood timber masters to create moulds with enhanced grain and detailing that no exterior grade timber can match.
  • Fort range of side-hinged doors look just like wood but with the added benefit of minimal maintenance.
  • Hand finished by craftsmen, woodgrain doors are “antiqued” to reproduce the natural subtlety of timber. Please see the close up photograph of the GRP woodgrain finish in Green.
  • Fort offer 17 GRP colours to choose from. Please see some of the colours shown below.
Natural wood beauty but without the maintenance.
Wessex GRP Honey Beech.

Bleached Oak
Bleached Oak
Dark Oak
Dark Oak
Light Oak
Light Oak
Golden Brown
Golden Brown
Honey Beech
Honey Beech
Red Mahogany
Red Mahogany
Dark Mahogany
Dark Mahogany
Solid Woodgrain Blue
Solid Woodgrain Green
Solid Woodgrain Red
Solid woodgrain Red
Anthracite Grey
Solid Woodgrain Anthracite Grey

Window options on Fort GRP side hinged doors.


Windows are available on selected models in:
  • Mock Black glazing
  • Stippled glazing
  • Clear glazing
with the option of:
  • Border leading
  • Diamond leading
  • Square leading.
Fort Weybridge with side hinged with optional windows.
Fort Weybridge side hinged with optional windows.

All images are intended for illustration purposes only and are subject to change. Site layouts are intended for illustrative purposes only and may change. Information contained on this site should be treated as general guidance and is not intended to form of any contract or warranty. Images may also include optional upgrades at additional cost.
The prices shown are correct at the time of being published but are subject to change without notice.  Please contact the sales office for accurate price information.