The new SF60 and SF80 sliding doors set a new benchmark for high-performance aluminum sliding door systems, combining impressive panel sizes, superior thermal efficiency, and cutting-edge design.
The SF60 and SF80 are giants in sliding door technology, offering individual panels that span up to 6 meters wide, 4 meters tall, and weigh up to 800 kg.
With the potential to configure entire door systems up to 32 meters wide, these models redefine possibilities for expansive, open views. The combination of these impressive panel sizes with sleek 30mm sightlines allows for almost uninterrupted views, whilst maximising the amount of natural light let in.
With increasingly stringent Building Regulations for thermal efficiency and the introduction of Future Homes Standard to come, the SF60 and SF80 sliding doors offer ideal solutions.
The double-glazed SF60 achieves U-values as low as 1.1 W/m²K, while the triple-glazed SF80 reaches an impressive 0.8 W/m²K - meeting the demanding standards of new-build Passivhaus eco-home. Unlike many alternatives, these U-value figures apply to the entire system - not just the visible frame elements.
Bonded sliding doors, where the glass is glued to the frame of the system, have become increasingly more common as other manufacturers struggle to make their slender frame systems rigid enough to provide protection from the elements.
The risk with bonded systems is that should you ever need to replace the glass you'll need to replace the entire panel - frame and all. For this reason the SF60 and SF80 are dry-glazed and not bonded - meaning the glass is held in place by glazing beads not bonded to the frame - ensuring you have complete peace of mind for years to come.
For more information read our blog - Why it matters how sliding doors are glazed?.
The SF60 and SF80 can be manufactured with a unique flush stacking panels. This innovative design allows each panel to slide seamlessly behind the next, creating a sleek, contemporary look when the doors are open and maximising your view out.
When closed the doors combine slender 30mm visible sightlines with frames that align flush with the glass, eliminating the need for bulky reinforcing profiles commonly seen in many slim sliding door systems - ensuring that your view remains unobstructed from every angle.
The SF60 & SF80 provide industry leading protection from wind and rain, ideal for those in exposed or rural locations. The doors are independently tested in laboratory conditions for water tightness, air permeability and wind load, with the results measured in Pascal ratings.
The doors can achieve 900Pa (Class 9a) for water tightness, 600Pa (Class 4) for air permeability and 2000Pa (Class C3/B5) for wind load, meaning the systems can stand up to even the harshest of British weather conditions all year around. For more information about weather performance testing read our blog.
Tested to meet the rigorous RC2 security standards - the European equivalent to the British PAS 24 testing - the SF60 and SF80 sliding doors provide exceptional security and peace of mind.
Both models are equipped with multi-point mushroom head locks and feature 6-pin anti-bump, anti-snap, and anti-drill key cylinders, ensuring comprehensive protection.
Our confidence in the quality of our products and the high standards of our installation team means we can provide a full ten-year warranty* on our systems and workmanship, giving you complete peace of mind. Plus, unlike some warranties, our guarantee is fully transferable if you decide to sell your home, so the new owner will benefit from the remainder of the guarantee period.
*Exclusions apply, please contact us for full details of our warranty policy.
The SF60 & SF80 are available as standard in a choice of three polyester powder-coated finishes – Gun Metal Grey (DB 703) textured, Anthracite Grey (RAL 7016) matt or Jet Black (RAL 9005) matt.
Alternatively the systems can be polyester powder coated to any stocked RAL colour (over 200 RAL colours) and even dual colour or textured finish. In addition, you can specify whether a matt, semi-gloss or full-gloss level of paint finish is required.
The new CUBIC handle has been custom designed exclusively for the SF60 & SF80 sliding doors.
CUBIC features a contemporary appearance with square sections, the rotating top section ensures the door always has the same neat look whether open or closed. The minimalist design ensures the handle sits neatly within the width of the frame, ensuring your attention is drawn to the view beyond the doors rather than the hardware!
Please send us your details, along with measurements for the opening, and we'll get back to you with a quote.
Having narrow sight lines minimises the amount of frame and increases the amount of glass, maximising the view out.
30mm
30mm
The depth of the frame from front to back is an important consideration, the slimmer the frame the less obstruction that is caused when the doors are viewed at an angle.
60mm
80mm
the SF60 and SF80 are dry-glazed and not bonded - meaning the glass is held in place by glazing beads not bonded to the frame - ensuring you have complete peace of mind for years to come. For more information read our blog - Why it matters how sliding doors are glazed?.
Dry-glazed with glazing beads
Dry-glazed with glazing beads
Aluminium tread plates cover unused elements of the track and outer-frame, providing a cleaner and more stylish end product.
Yes
Yes
The maximum size of each individual glass panel installed in our sliding doors range.
Width: up to 6 metres. Height: up to 4 metres.
Width: up to 6 metres. Height: up to 4 metres.
The SF60 & SF80 are giants of sliding door technology, capable of accommodating huge panes of glass
up to 800kg
up to 800kg
Thermal performance of the doors is measured as a U-value. When comparing products it is crucial to compare the overall U-value of the system and not just the U-value of the sealed glass unit.
Double glazed: from 1.1W/m²K
Triple glazed: from 0.8W/m²K
Panels slide completely behind each other.
As standard
As standard
Our sliding doors are designed with maximum security in mind. multi-point mushroom lead locks, the SF60 & SF80 offer complete peace of mind when it comes to security. As with every SUNFLEX door, our sliding doors are fitted with 6-Pin anti-bump, anti-snap, anti-drill key cylinders.
Fitted with multi-point mushroom bolts and 6-pin anti-bump, anti-snap, anti-drill key cylinders
Fitted with multi-point mushroom bolts and 6-pin anti-bump, anti-snap, anti-drill key cylinders
Tested to meet the rigorous RC2 security standards - the European equivalent to the British PAS 24 testing
Yes
Yes
Every set of doors and windows undergoes independent physical testing to assess the ability of the systems to withstand air and water. Water tightness is tested against BS EN 12208 standard with air permeability tested against BS EN 12207 standard.
Water tightness: 900Pa (Class 9a). Air permeability: 600Pa (Class 4). Wind load: 2000Pa (Class C3/B5)
Water tightness: 900Pa (Class 9a). Air permeability: 600Pa (Class 4). Wind load: 2000Pa (Class C3/B5)
Providing a track that is completely flush with the internal and external floor levels seamlessly breaks down the boundaries between the house, patio and garden, without reducing the protection the doors offer from wind and rain.
Yes
Yes
The integration of a moveable corner post allows the doors to open up a complete, unobstructed corner of a room
Yes. 90° and 135° corners achievable
Yes. 90° and 135° corners achievable
The track configuration will depend on the number of panels you choose and the size of the opening.
Twin or triple
Twin or triple
Our sliding doors are available in a range of glass unit thickness to suit the requirements of your project
32mm, 33mm or 34mm sealed units
52mm, 53mm or 54mm sealed units
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 the glass while providing some free energy.
Options available: Tinted anti-sun glass, Neutral anti-sun glass, Self-cleaning glass, Obscure glass and Low-iron glass
Options available: Tinted anti-sun glass, Neutral anti-sun glass, Self-cleaning glass, Obscure glass and Low-iron glass
When required, we fit toughened glass to comply with Building Regulations Document N. As an alternate method of compliance we are able to fit laminated glass. Both options have their pros and cons.
Toughened glass
Toughened glass has been heat tempered to increasing its strength over the 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. It is also available with the widest variety of coatings and can be supplied in larger sheets than equivalent thickness laminated glass.
When the glass is toughened it can suffer from some visual distortion making, meaning the face of the glass is not perfectly flat distorting some reflections.
Laminated glass
Laminated glass is manufactured by bonding two panes of annealed glass with a clear plastic interlayer. The benefit of laminated glass is that if it’s broken the glass will crack rather than shattering, improving security. In addition, laminated glass reduces bleaching of carpets, curtains and furniture by filtering UV rays that would usually penetrate the glass.
The drawback of laminated glass is that extreme heat or cold can cause invisible defects in the glass to form a crack due to the two panes expanding and contracting independently. As the laminated glass is not toughened is does not suffer from the visual distortion that can occur to toughened glass during the toughening process.
Toughened or laminated glass
Toughened or laminated glass
