Fort gdo 20mm chester horizontal wide rib with window ral colours steel side hinged garage doors

FREE 3-POINT LOCKING UPGRADE

For Free 3-point locking select your door size below, then choose your free upgrades from the drop-down option. Offer ends 31/03/2026

Contemporary Horizontal Design with Wide Rib Detail

The Fort 20mm Chester Horizontal Wide Rib with Window delivers bold contemporary styling through its pronounced wide horizontal ribbing combined with strategic window glazing and superior 20mm insulation. Featuring dramatic wide horizontal ribs that create strong linear definition and pronounced shadow depth, this door suits modern UK properties seeking striking architectural impact with excellent thermal performance.

The wide rib profile creates a bold modern aesthetic that visually widens your garage frontage, lending a sleek, contemporary appearance that enhances property kerb appeal. The pronounced rib depth adds dramatic three-dimensional character through strong shadow play, creating visual interest that distinguishes your property. Twin glazed windows in the upper section provide abundant natural light whilst maintaining ground-level privacy, transforming your garage into a bright, versatile space perfect for workshops, hobbies, or multi-purpose use.

With 20mm double-skin insulated construction delivering exceptional thermal efficiency and condensation resistance, this door regulates garage temperatures year-round whilst protecting stored contents. The insulation provides acoustic dampening valuable for workshop use or busy locations. The side-hinged configuration maximises internal space efficiency, with outward-opening doors preserving full ceiling height for storage and eliminating overhead mechanisms. Single-leaf access provides everyday pedestrian convenience. Available in 50/50 or 1/3-2/3 split configurations, with a comprehensive palette of 34 RAL colours to suit any contemporary property style.

Key Features

• These doors are available in width up to 2750m wide (including sub frame) and a total height of 2350mm
• All components are precision machined for an overall high grade engineered doorset with great overall integrity providing strength and security
• The twin steel skins bonded to a thermal core go to form a 20mm deep insulated leaf and both door panels sit inside a box section steel sub frame which is factory fitted for the easiest on site installation
• Made to measure as standard at no extra cost
• All doorsets are only offered as 50:50 split but can open outwards or inwards of required
• Concealed shoot bolts to top and bottom of inactive leaf holding the door panel secure
• Handles, hinges and all relevant fittings and hardware are all pre fitted to the doors
• Manufactured in the UK
• Durable powdercoat colour finish options with white as standard at no extra cost
• Colour matched external hinges - 2 as standard and 3 on larger sizes on each door leaf. Hinges are 3 way adjustable for alignment adjustments
• Special RAL colours available on request if not listed in the standard options list
• Choose left or right hand opening for active door leaf at no extra charge
• Threshold as standard included
• Lever handle, deadlock and adjustable keep as standard with internal thumb turn for effortless and safe operation from inside
• Optional stainless steel (SS304) long handles in 2 different lengths and supplied as a pair of handles. This arrangement includes ball catch and deadlock locking
• Standard chrome lever handle fitted with options for handle material and finish
• 3 point security locking option
• These insulated side hinged garage doors offer great levels of security and ease of operation on a daily basis and are a great garage door option for anyone using their garage regularly or if the garage is integral to the main house

Construction: 20mm double-skin insulated steel panels

Material: Galvanised steel with powder-coated finish

Insulation: Polyurethane foam core

Maximum Width: Up to 2750mm (including sub frame)

Maximum Height: Up to 2350mm

Panel Design: Wide horizontal rib profile

Windows: Glazed panels in upper section with colour-matched bars available as a cost option

Glazing Options: Stippled or clear glass

Locking: Standard handle lock (3-point locking available as optional upgrade on doors with a minimum height over-frame of 2000mm)

Hinges: Colour-matched, adjustable in 3 directions

Seals: Double seals to door leaf and frame

Handle Finish: Chrome as standard (also available in Brass, Black, White, Aluminium, or Brushed Stainless Steel)

Door Stays: Fitted as standard

Opening: Side-hinged (left or right opening available)

U-Value: Excellent thermal efficiency

Security: Robust construction with optional 3-point locking system

Maintenance: Low maintenance powder coat finish

Colour Options: Available in a choice of 28 colour options, the paint finish is a highly durable powdercoat ripple texture giving an attractive finish and excellent resilience.

Signal White  RAL9003
Grey White  RAL9002
Pebble Grey  RAL7032
Dusty Grey  RAL7037
Traffic Grey  RAL7042
Light Grey  RAL7035
Window Grey  RAL7040
Silver Grey  RAL7001
Iron Grey  RAL7011
Slate Grey  RAL7015
Graphite Grey  RAL7024
Anthracite Grey  RAL7016
Black Grey  RAL7021
Jet Black  RAL9005
Steel Blue  RAL5011
Cobalt Blue  RAL5013
Gentian Blue  RAL5010
Signal Blue  RAL5005
Light Blue  RAL5012
Moss Green  RAL6005
Chartwell Green  BS14 C35
Ruby Red  RAL3003
Traffic Red  RAL3020
Chocolate Brown  RAL8017
Clay Brown  RAL8003
Mahogany Brown  RAL8016
Light Ivory  RAL1015
Cream  RAL9001

3 Point Locking

Hinges

Seals

Handle Options

 Installation instructions provided with the door.

2-year Product guarantee

The standard guarantee of 2 years is given to the holder of the product that covers all parts and the panel providing the serial number is readable, intact and in place.  Factory applied paint finishes are 2 years on steel doors that have standard colours applied. 

The product is given a 2 year warranty for hinges and locking for normal use whereby normal use consists of no more than 5 operations (open/close) per day. We recommend the product is inspected and serviced annually by a competent engineer from the garage door industry, the warranty for parts replaced by an engineer or for supply only is 6 months or for the remainder of the warranty period. If warranty work is carried out the product guarantee does not extend past the anniversary of installation/ supply date.