Slim Framed Sliding Glass Doors

Floor to Ceiling Glass Doors with Slim Frames


Find out more

Minimal Sliding Doors

Our range of ultra slim framed, high performing minimally framed sliding glass doors are designed to offer the largest structural openings with the most minimal design. the systems are manufactured to the highest specification, on a completely bespoke basis, offering unique designs and adaptable solutions to suit your project requirements.

Through modern architecture, windows have ceased to be simple, functional openings in a wall. Instead, they have become a complex yet key part of an architect’s proposal which can move up or down in the context of the house, extend as far as the ceiling and shape a space.

The minimal windows® sliding door system is one of the only ultra slim sliding door systems on the market that is PAS24 certified, allowing the slim framed sliding door system to be used on a wider range of projects. 

With minimalism at the core, slim framed sliding door systems are the epitome of a slim exterior opening system with sightlines from just 20mm. The advanced combination of insulated aluminium and high specification structural glass allow us to maximise glass surfaces, resulting in a design of transparency and immateriality which are key aspects of modern architecture.


Floor-to-Ceiling Sliding Glass Doors

Sliding actions are effortless with the expertly engineered steel sliding mechanisms, allowing the double glazed slim slider to be installed at weights of up to 1000kg per unit. With large moving glass units, the distinction between inside and outside is eliminated, creating a union of living spaces for a modern architectural house project. Flush thresholds further continue that illusion of connectivity. Floor finishes can flow seamlessly from inside to out, using the same floor finishes either side of the track for an invisible track effect.

In wet weather environments such as the UK, water tightness is extremely important. All drainage is integrated into the base system of the sliding door systems, with a range of solutions possible. The system is fully tested for weather resistance including wind and driving rain. 

All aluminium framing is finished to the highest specification in accordance with the Qualicoat directives. Any framing finish is possible. You can select any RAL colour from the RAL colour chart for PPC or choose from a range of specialist finishes. Some of the advanced systems also allow you to create your slim sliding door in architectural metal finishes such as stainless steel or architectural bronze.

Ultra Slim Sliding Glass Doors that Push Boundaries

Many of our systems are designed to be both versatile and flexible, offering a modular composition of openings including opening corners, pocket sliding doors and curved sliding doors.

Additional opening formats allow you to maintain a cohesive design through all glazing with vertical sliding sash windows, pivot openings and tilt and turn windows all part of the same slim framed system family.

The sliding door systems available from IQ are designed with an architect’s requirement for flexibility and collaboration in mind. By pushing the boundaries of glass technology huge glass elevations of upto 6m tall are easily possible with taller sliding doors possible on investigation.

PAS24 Certified

PAS24 represents a security standard, widely recognised across the construction industry. Building regulations dictate that door systems must be PAS24 certified in new build and renovation projects to achieve the highest levels of security and there are very few sliding door systems on the market that have been PAS24 tested.

Obtaining a PAS24 certification means that the minimal windows® slim sliding door systems can be used anywhere, surpassing industry standards for security and eliminating the threat of opportunistic criminals.

When the slim framed sliding door system was tested, the two pane configuration went through a vigorous testing process to ensure the system as a whole was PAS24 certified, rather than the individual components. The high security standards make the minimal windows sliding door system the perfect choice for any contemporary new build or renovation projects.

minimal windows® glass sliding doors

The newly renovated IQ Glass showroom in Amersham boasts a wide variety of slim framed sliding doors installed to showcase the systems in real life situations. 

As exclusive suppliers in the UK for Keller minimal windows® our showroom displays a myriad of configurations from open corner sliding doors to double-height automated doors with practically every type of slim framed aluminium sliding glass door on show.

Seeing how the systems act in real life can be extremely beneficial when specifying slim framed sliding doors for your next project. 

One of the most recent additions is two minimal windows® slim framed sliding doors in an open corner configuration. This flush threshold sliding glass door system has ultra-slim sightlines, achieving high performance values without having to compromise on a modern and minimal design. 

For more information on the minimal windows® in the showroom, click here.


minimal windows® Glass Sliding Doors

minimal windows® glass sliding doors by industry leading designer and manufacturer, KELLER are exclusively available in the UK and Ireland via IQ Glass.

These deluxe sliding glass doors are the kitemark of the frameless windows and doors industry. As the number one choice of architects for its minimal framing profiles and high performance glass, this innovative sliding glass system is PAS24 certified; a product testing that provides the guarantee that this system fully complies with Building Regulations.

minimal windows® second-to-none sliding glass door system is designed to push architectural boundaries and can be found in the most luxurious contemporary residential projects throughout the world. 

Discover more minimal windows® glass sliding doors!

Threshold Details of Sliding Doors

The standard base detail for these systems is flush and frameless, resulting in a clear glass elevation spanning from floor to ceiling. Drainage is fully integrated into the base frame with additional drainage details suitable for high rainfall areas.

Taking the connectivity of spaces even further is the option to specify an invisible frame system. It allows complete emphasis of the minimalism of the system, by concealing the outer frame. This can be done solely at the base – for an invisible base track – or on all outer edges of a sliding door.

This solution creates a threshold-free and frame free transition between inside and out. The building finishes can be brought over the outer profiles which combines the environments of inside and out into one useable space.

Base systems are possible for drive on loads with the introduction of a durable stainless steel base track. This solution is perfectly suited for showcasing classic car collections and modern garage spaces.

Engineered Performance

The beautiful aesthetics and minimalism of a sliding glass door system cannot function alone. It must be paired with precise engineering and enhanced performance to become an integral part of a modern building envelope today.

Using double glazing with a thermally broken frame allows high levels of thermal insulation. Uw values from just 1.165 W/m2K are achievable in a double glazed installation. The systems have also undergone extensive testing to ensure weather tightness, wind resistance, sound insulation and water tightness achieve the best possible values.

The triple-glazed sliding door systems have been tested to withstand hurricane conditions, with various certificates and performance values making them perfectly suited to environments subject to extreme weather conditions.

The slim sliding door is inherently flexible, with a combinable range of sliding solutions available. The standard sliding solution is available as a linear slider with unending possibilities of opening configurations. It can also be created as a pocket slider, an opening corner or a Juliet balcony. Curved sliders are also possible on a birail system. Additional functionality can be achieved through the exploration of the systems alternative configurations.

Large vertical sliding sash windows create the floor to ceiling openings in gravity-defying designs. Pivot openings and tilt and turn solutions are also possible from the same framing system, providing a full range of products mirroring the same minimalist ethos.

Glass Specification in Sliding Doors

Each slim framed sliding pane can hold a glass unit of between 32-38mm deep. This allows for most glass configurations in a double glazed unit. Triple glazing is also possible at smaller sizes.

Any number of additional glass coatings or options can be integrated into the slim sliding door system to offer optimal performance tailored to your project requirements.

Options such as solar control coatings are popular as well as low maintenance coatings for projects in marine environments.

More technical glass solutions such as heated glass can also be integrated into the sliding door system with a range of pre-designed details.

If you have a specific requirement for your glass specification speak to the team at IQ who can provide expert advice about what is possible and feasible.

Opening Corner Sliding Doors

Slim framed sliding glass doors can be designed in configurations that open on the corner. When open there is no frame left in its place, leaving a fully open corner and connection to the outdoors.

These opening corner sliding doors can be designed with a 90 degree corner connection or any angle between 65 an 177 degrees. This allows you to create unique and varied designs using different shapes and angles.

Pocket Sliding Doors

These ultra slim sliding glass doors can be designed to slide into hidden pockets within the walls. By creating a sliding pocket door design you can open up the entire aperture – something normally only possible with bifold doors.

We recommend a maximum of 4 tracks for pocket doors to minimise the size of the pocket you need to create whoever, you can have as many panes sliding into the pocket as you wish.

Pocket doors offer a beautiful combination of the slim sightlines of the ultra slim sliding doors with the open nature of a bifold door system providing the best of both worlds.

Large Glass Sliding Doors

Our glazed sliding door systems are some of the largest available systems on the market today, reaching impressive sizes of up to 6m tall in a single sliding pane. 

Typically, you can easily achieve sliding door panes of 10.5m2 (for double glazing) and 18m2 for a triple glazed solution. Larger sizes than this are available on application, pushing the boundaries of what is possible. 

Floor to ceiling bespoke glass walls can be created on a project-by-project basis.

The ultra slim sliding glass door range is made up of far more than simple parts. It's a system that can be tailored to your project requirements. Much larger, wider, taller and complex openings can be realised.


minimal windows NGS Stepped Glass

The threshold of the NGS Floor is recessed and invisible with the ultra slim sliding glass door rails able to be covered with natural stone, marble or wood in a natural continuation of the floor finish. 

The base frame is recessed and below the floor finishes, allowing the floor finished to run directly inside to outside. The stepped glass finish further hides the frame by installing the glazing Infront of the base frame. The floor frame goes from 36mm to 16mm and creates a flush glass design both inside and outside. 

See the details of the NGS stepped glass sliding system here.

minimal windows NGS View

The NextGeneration Slider (NGS) View is a frameless ultra slim sliding glass door, offering floor to ceiling glass and a total transparency of 99.3% percent when the sliding glass doors are closed.  

Utilising four depths of unique aluminium profiles, the fully thermally broken glass door offers a frameless visual when the doors are closed. No frame is visible above the floor finishes with all base framing and tracks built into the floor structure. The result is a floor to ceiling frameless sliding glass door with exceptionally high levels of performance to meet future building requirements. 

Timber Internal Frame Option

These slim sliding glass doors can now be designed with an internal timber frame, to continue the slim glass design but with a timber interior. 

The interior interlocker can be finished in true timber in a range of finishes including: 

  • Oak
  • Walbut
  • Larch
  • Maple
  • Norway Maple
  • Cherry
  • Teak
  • and more.  

Contact us for more information and to find out if this timber finish is suitable for your project.