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GS20 Sliding Doors

With its popular and desirable 20mm central sightline, GS20 slimline sliding doors are precision-crafted for residential or commercial projects, new build or existing openings and supplied nationwide.

  • 20mm interlock

  • Standard or Flush Stacking

  • Two to six sashes

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mm x mm

mm
mm

1. Width: Measure horizontally across the opening from edge to edge at the top, middle, and bottom. Use the smallest measurement.

2. Height: Measure vertically from top to bottom on the left, center, and right sides. Use the smallest measurement.

1 pane

1. Width: Measure horizontally across the opening from edge to edge at the top, middle, and bottom. Use the smallest measurement.

2. Height: Measure vertically from top to bottom on the left, center, and right sides. Use the smallest measurement.

Grey

1. Width: Measure horizontally across the opening from edge to edge at the top, middle, and bottom. Use the smallest measurement.

2. Height: Measure vertically from top to bottom on the left, center, and right sides. Use the smallest measurement.

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Overview

Perfect for existing or new build projects

GS20 is designed as an ultra slim replacement for dated sliding doors or promising spectacular sliding doors to a new extension or home, with all the desirable features expected from a cutting-edge sliding door.

Up to Six Sashes Available

From two up to six sliding panels, including fixed and open corner designs, GS20 sliding doors work with standard or bespoke openings, with options for all panels to slide, flush tracks and for residential or commercial projects.

20mm Sightline

With the favourite 20mm central sightline, GS20 sliding doors promise reduced mullions sighlines, maximum use of glass and an elegant, seamless apperance in any room.

Exclusive Flush Stacking Design

Unique to our sliding doors is the flush stacking facility. Doors stack neatly together when open, they look better and give you more of your available opening.

High-Performance Glass

GS20 sliding doors come glazed with the highest quality glass units up to 30mm double glazed, with options for enhanced security, solar control or acoustic glass, filtering up to 41db of noise and keeping internal spaces quiet as well as comfortable.

Effortless Operation

With upgraded rollers, hardware and components as standard, GS20 doors deliver an exceptionally smooth and near-silent sliding action. Effortless opening, even at large door sizes.

Premium-grade materials, advanced manufacturing

The exceptional design and engineering of GS20 sliding doors starts with premium-grade aluminium, coloured with a professionally applied colour powder coated, anodised or special finish.

Made in our advanced factory, with quality checks across every stage of the manufacturing process, GS20 sliding doors are meticulously crafted with a luxurious look, feel and quality that’s instantly visible.

Stunning Design Slimline Sliding Patio Doors

The GS20 Sliding Door delivers a new level of contemporary performance, combining slim sightlines with a refined, architectural presence. Engineered for modern and luxury spaces, its sleek profile and elegant proportions complement both contemporary and traditional designs.

Maximising light and space, the GS20 features large glass panels that create bright, open interiors and seamless indoor-outdoor living. Suitable for residential and commercial projects, the GS20 offers a perfect balance of design, performance, and versatility—making it a standout feature in any setting.

GS20 Sliding Doors - Ultra-slim, high-performance, built to impress.

The GS20 Sliding Door is designed to meet the highest expectations in today's property renovaiton and building projects, with masses of homeowner and architect appeal. Slim frames and expansive glass panels fill spaces with natural light. Fully bespoke and available as fixed or open corner or pocket sliding doors. Flush tracks, impressive weather protection, security and insulation, make them ideal for homes or light commercial buildings.

Exclusive to Glideline and crafted in the UK, GS20 delivers the clean lines, performance, and visual impact that today’s projects and customers demand. Get in touch with our team today.

Options
Handle colours
Grey 7016
Black 9005
White 9010
Light Sliver
Dark Sliver
Custom Ral
Technical specifications

General

    Sash sight line 20mm

    Quality assured BSI Kitemark Standards

    Possibility to embed frames within the wall

    Up to 4 rails

    Thermally broken

    Possibility of sash encounters at a 90o corner without a mullion

    Panel width 800-2500mm

    Maximum panel height 3000mm

    Maximum panel weight 320kg

    Maximum glazing thickness 30mm

Test data

    U value from 1.3 (W/m2K)

    Maximum acoustic insulation 41Db

    Air permeability (EN 12207): Class 4* (600Pa)

    Water tightness (EN 12208): Class 7A* (300Pa)

    Wind resistance (EN 12210): Class C5* (2000Pa)

    *Reference test Balcony 1.23 x 1.55m. 1 sash + 1 fixed light.

Technical Image
Colour Finishes

Available from Glideline

Powder Coating RAL Finish

Standard 7016M and 9005M, 9010G

Available in 150+ RAL finishes

Textured finish available

Split colour for interior/exterior

Anodized aluminium

Class 15; 15-19 micrometer coating for external use as standard

Class 20; 20-24 micrometer coating for use in aggressive conditions, industrial areas and marine pollution

Silver brushed, silver rough brushed, bright silver, matte silver, brushed steel, rough brushed steel, brushed champagne re-polished, bright gold, rough brushed inox re-polished, brushed stainless steel, rough brushed ivory re-polished, brushed bronze, rough brushed bronze and re-polished, rough brushed copper re-polished, rough brushed Bordeaux re-polished, rough brushed green, rough brushed blue re-polished, rough brushed grey re-polished, matte black

Reviews

Glideline installed 6 sets of sliding doors in our house. This was a major investment for us so we wanted it to be just right. David and all the team were friendly and helpful from start to finish. Henry was great.

Rob Smith
reviews.io

Thank you to the installers Joe and Luke for their hard work. It wasn't easy going up all the stairs but they were happy doing so and I couldn't be happier with the doors. Also Henry has been fantastic from sta…

Julia Davies
reviews.io
FAQs
What’s the maximum weight?

Our aluminium patio sliding doors can handle weights up to 320 Kg, which allows for wide door spans for your trade project. This enables several configuration options for homeowners, as well as our trade customers.

How thermally efficient are they?

These slimline sliding patio doors have U-values as low as 1.3 W/m²K, contributing to the energy efficiency of homes. This helps ensure bills are at their lowest possible value.

Do they work in traditional homes?

Slimline sliding patio doors have a minimalist profile as well as a timeless design. These aluminium doors will work perfectly in modern or traditional homes as a result.

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