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Top running frameless single glazed slide & turn doors

The SUNFLEX SF25 slide, turn and stack system is frameless glass and offers clear, unobstructed panoramic views. It provides some protection from the elements, noise reduction by up to 11dB, as well as exceptional operating performance, with minimum impact on existing architecture.

The SUNFLEX SF25 sliding turn system timeless design makes it suitable for outside enclosures, such as balconies, terraces, patios or winter garden, picnic areas and stadium suites. Alternatively it can be used to create a flexible, contemporary and useable open space internally as room dividers for both living and working environments.

Key features

  • Timeless design with no visible sightlines.
  • Offers weather protection from the elements.
  • Slim construction ensures maximum opening space with smallest stacking area.
  • Internal drainage channel track to remove any condensation or flush track option.
  • Low maintenance and fully guaranteed.

Versatility in design

The first opening panel acts as a single access point, each individual panel then slides independently back across to the same side to stack. This allows you to have as much or as little of the glass wall open at any one time.

The system can open to the inside or outside and stack to the left or the right or split to stack on both sides.

The single in-line running track caters for a wide range of applications. This allows the glass panels to slide from 90o to any angle change up to 180o, including segmented curved radius openings.




Standard aluminium finishes

As standard we offer the choice of any RAL colour in a semi-gloss finish, DB703 textured, DB703 smooth or silver anodised. Once we have prepared a quotation we are able to send colour samples for approval prior to progressing with your order.

Special RAL colours

Over our standard range we are also able to offer the full RAL classic colour range. The range consists of over 200 colours which come in a matt, semi-gloss or full-gloss finish. The colours shown in the swatch will give an indication to the colour shade, however before progressing with an order we can provide aluminium samples for your approval.

RAL colours for the SF25 sliding turn system by IDSystems



RAL swatches for the SF25 sliding turn system by IDSystems

RAL swatches

RAL classic colour swatches can be purchased directly from us for £10.99 (including postage).

The full colour swatch is a great tool to allow you to choose the colour of your doors and windows to complement your internal decoration, external render, brickwork or other features within your project.

To order a RAL swatch you can make a card payment over the phone by calling us on 01603 408804. If you have narrowed down your choice we are able to send a colour sample for your approval when placing an order.


Glass options

This system contains toughened glass as standard and has been heat tempered to increasing its strength over ordinary annealed glass by up to five times. Other than the strength the advantage of toughened glass is that should it break it would shatter into non-sharp pieces.

  • Tinted anti-sun glass: Reducing solar gain, available in blue, green, grey or bronze.
  • Neutral anti-sun glass: Neutral in colour with reflective properties to reduce solar gain.
  • Self-cleaning glass: Reduces the need to clean the glass, very useful in roofs.
  • Obscure glass: Our satin deco is a stylish solution for areas requiring privacy.
  • Low-iron glass: Improves the light transmittance through glass while providing some free energy. 



The SF25 sliding turn system is custom-manufactured to fit any size of opening. Panels can be manufactured to a width of up to 800mm and a maximum height of up to 2,600mm. Heights greater than this can be achieved, please contact our technical department for advice.


Glass panels which have been drilled and mechanically clamped and bonded top and bottom with a slender aluminium rail.


The SF25 sliding turn system features as standard a two-point locking system with concealed top and bottom latching, operated internally by a turn knob, which secures the first panel to be opened. Carriers at the top and guides at the bottom corners secure the remaining panels, which enables them to slide to the side for stacking once the first panel has been opened.

For improved security top and bottom key locks can be added, or for further convenience and security a key-lockable mortice latch lock block can be fitted.

Weather stripping

With minimum distance between glass panels, flexible wall connection gasket seals, top and bottom twin PVC brush piles separated by a twin fin seal and plastic end caps to the profiles, effective weather protection is achieved.

For improved weather performance clear ‘H’ section panel jointing strips are available for between glass panels, in addition to side jambs.

The unique clever design of the system means the standard track incorporates an internal drainage element, transporting any condensation or cleaning water to face drain outside. A special groove integrated into to the outside bottom rail profile, enables the addition of an external sill. When the system is used as an internal room divider an aluminium flush track can be recessed into the floor providing a level walkthrough.

Operating system

A top running system with an operating mechanism that consists of horizontal polyamide wheels with double-sealed ball bearings providing continued quiet, quick and easy, smooth operation and a long life.

An adjustable head section caters for discrepancies, allowing simple installation in openings that may not be level (up to 16mm).


As standard we offer the choice of any RAL colour in a semi-gloss finish, DB703 textured, DB703 smooth or silver anodised. Other RAL colours (over 200 RAL colours) are available for a nominal charge. In addition you can specify whether a matt, semi-gloss or full-gloss level paint finish is required.


Depending on specification 6mm, 8mm or 10mm toughened safety glass, manufactured to BS EN 12600 standard can be used, this can be tinted or obscured if required.

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