GS25 Sliding Doors
GS25 Sliding Doors
Designed to create sliding doors at the largest possible sizes, with manual or automatic operation, GS25 sliding doors deliver on quality, engineering, and superior performance, whilst always being slim, minimal and beautiful.
Smoothest sliding door action
Designed for standard or oversized doors
25mm mullion sightline
Get your quote:
mm x 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.
Black
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
Large sizes, minimal sightlines
GS25 sliding doors come with precision rollers and bespoke tracks, designed to create expansive sliding doors and moving glass walls.
94% Visible Glass
With the outer frame and track hidden in the structure, GS25 doors create an all-glass look with and invisible frame.
25mm sightline
With panel size up to 4m wide or high and a mere 25mm mullion face sightline for the ultimate large-span minimal sliding door.
Flexibile Opening Options
Available from two up to six sashes, fixed or open corner designs, pocket sliding doors and automatic opening, GS25 sliding doors are designed to meet virtually any sliding door need, from simple to complex.
Safe and Secure
Technically excellent and designed for standard and extreme environments, GS25 sliding doors suit contemporary urban homes or in coastal and extreme weather locations.
Exceptional Insulation
With 36mm double or 56mm thick triple glazing, up to an incredible 14m2, GS25 sliding doors provide outstanding U-Values, thermal and acoustic performance.
GS25 - Perfect for your Grand Design
The GS25 Sliding Door is engineered for architectural projects where scale, performance, and minimalism come together without compromise. Designed for large openings, it has technical excellence whilst retaining the desirable slim-frame styling and small vertical mullion. For new build openigns only, with optional fully concealed perimeter frames, there's nothing better for a pure glass surface for uninterrupted views and striking visual impact.
With the best in high-performance glass, the GS25 offers exceptional thermal and acoustic insulation, making it ideal for high-performance residential and commercial spaces. Available with manual operation for panels up to 400kg or advanced motorised options handling up to 700kg, the GS25 also offers barrier-free accessibility with fully integrated floor tracks. It’s the ultimate solution for projects that demand the finest in modern glazing design.
Glideline - Trusted Sliding Door Professionals
When a project demands the finest in large-span aluminium sliding doors, we help bring advanced projects to life. The GS25 Sliding Door is a true example of engineering excellence and we can help you, your architect or builder get the best out of this top-of-the-line sliding door and bring the most ambitious glazing designs to life.
With a reputation built on precision manufacturing and exceptional service, Glideline supports professionals and homeowners at every stage of the journey—from technical design and specification to flawless installation support. Whether you're creating a contemporary urban home, a coastal retreat, or a grand architectural statement, contact us and find out how we can partner with you.
Glideline - Trusted Sliding Door Professionals
Experience a level of sliding door craftsmanship, design and aesthetics, trusted by the industry's leading architects, developers and installers. At Glideline, we understand that exceptional glazing demands more than just beautiful products. Precise engineering, expert manufacturing and reliable support.
From first consultation to final installation support, Glideline offers the insight, professionalism, and attention to detail that high-end projects demand.
Options
Handle colours
Technical specifications
General
Interlock profile: 25mm
Possibility to embed frames within the wall
Up to 4 rails
Thermally broken
Possibility of sash encounters at a 90o corner without a mullion
Maximum width of panels 4000mm
Maximum height of panels 4000mm
Maximum panel area 14m2
Maximum panel weight 400kg
Maximum glazing thickness 56mm
Test data
U value from 0.9 (W/m2K)
Maximum acoustic insulation 43Db
Air permeability (EN 12207:2000): Class 4*/4**
Water tightness (EN 12208:2000): Class 7A*/9A**
Wind resistance (EN 12210:2000): Class C3*/C4**
*Reference rest: Balcony 4.0 x 3.0m. 2 sashes.
**Reference test: 4.0 x 3.0m. 1 sash + 1 fixed.
Finishes
Standard finishes RAL7016, RAL9005 and RAL9010
Split color option for interior/exterior
Available in RAL colours
Colour Finishes
Available from Glideline
Powder Coating RAL Finish
Powder Coating RAL Finish
- Standard 7016M and 9005M, 9010G
- Available in 150+ RAL finishes
- Textured finish available
- Split color 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
Wood effect powder coating
- Available in pine, oak, cherry wood, sapele, African walnut, walnut, chestnut and white wood
Reviews
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 start
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.
FAQs
What U-values do they achieve?
Our sliding patio doors can have U-values as low as 0.9 W/m²K. With such a low U-value being provided by our aluminium sliding doors, your or your customer’s home will have an energy efficient home.
What’s the maximum glazing thickness?
Your aluminium sliding doors can achieve a glazing thickness of up to 54mm, able to offer triple as well as double glazing. We also include several opening possibilities for our sliding patio doors, giving customers plenty of options.
Do you offer wood effect finishes?
If you have a traditional home, you might be wondering if sliding patio doors will match with your project design. However, with our sliding doors wood effect finish, they’ll fit perfectly.
If we haven’t answered your question, Send us a message