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Single Glazed Doors Technical Specification

Our single glazed doors are perfect for internal use, balcony enclosures, commercial partitions and room dividers. Using high quality components and safety glass, they come with high performance and long-service life. 

Single glazed doors don’t rely on the more stringent thermal and other specifications of our double glazed exterior patio doors.  However, we design and manufacture your doors to give the best possible user experience wherever you choose to have them in your home. 

single glazed doors

Single Glazed Doors Technical Specification

In this section, we give an explanation of our single glazed oors and their various technical aspects. 

These cover profile dimensions, glass type and other useful information. 

Maximum Panel Heights  – up to 2.6m high, subject to overall product design. 

Specification of Bottom Track – 40mm x 61mm, with 13mm gap, which is thermally broken.

Specification of Top Track – 40mm x 61mm, thermally broken and 4 x Schlegal strips.

Profile Sizes – 33mm High, 40mm wide and have inserts 4x Schlegal and unique, purpose-designed wheeled system.

Glass – 10mm or 12mm Toughened Glass Polished all-round. British Standard Kite Marked. Schlegal is fitted as standard between glass or alternatively clear PVC for better weather performance and weather sealing. Sound proofing effect of approximately 70%.

Head Deflection – 12mm

To open and close doors – You can have either stainless steel lock or a poppit which is opened by pulling a clear acrylic rod.

Design Specification

On Single glazed units, all glass used is 10mm or 12mm toughened with BS Kite mark and is polished on long edges. Schlegel is fitted between doors or you can have a clear PVC seals, which give a complete weatherproof seal. The tracks and profiles are made of aluminium produced in the United Kingdom.

The profiles on doors are connected to the tracks by means of a flag, including spacers which slide inside along the tracks. The tracks contains top and bottom turning mechanisms which automatically tell us where the doors are to open. Doors can only be opened at gates, which are 6mm by 5mm, which makes them extremely secure.

The door locking mechanism is a stainless steel (satin or polished) privacy lock or a poppit which is opened by pulling a clear acrylic bar towards you.

The framework is produced from powder coated aluminium, manufactured in the UK and can be supplied in any RAL colour you specify. The sides are sealed with a grey PVC plastic.

How our single glazed doors slide and fold. 

All doors slide on PTFE (Pure Teflon), and all the weight is at the bottom, it doesn’t hang, there are no wheels, and it slides by kinetic energy. You can only open the doors when they are in the correct position at the gate, which are in the first door opening only and are 6mm wide x 5mm deep. There is a turning mechanism in the top and bottom track, on which the flags fit into. This allows you to open each door as it automatically touches and locks into position. Once open the doors stack neatly side by side with just 5mm between each door, with the profile being 40mm wide. Doors can stack all one side or both sides any combination.

Contact us for more information about how our single glazed internal or external doors work in your home.

We also offer a full range of aluminium windows, bifolding and sliding doors,
and front doors as FGC Bespoke Aluminium.

Visit the FGC Showroom

You can now visit our showroom in Strood, Kent.

The full range of Frameless products are on display in wide variety of configurations.

We request you contact us to make an appointment before visiting to avoid overcrowding.

Find out more about the FGC Kent showroom.

Reviews on Facebook and Google

FGCExcellentFGC4.5 Based on 42 reviews fromSee all reviews review us onWayne T.Wayne T. ★★★★★ Very happy with the service I have received, everything went smoothly no issues, I was kept up to date throughout the process and the fitting team were very professional, polite and friendly I would recommend fgc to anyone thank youKayleigh C.Kayleigh C. ★★★★★ Amazing service, great aftercare, incredible product. It was hard to find something that would fit in our house and would have been pleasing to the eye aswell as stylish and modern and unique.From sales to install was smooth and stress free amazing bunch of people to work with I had a great experienceInci P.Inci P. ★★★★★ Great product with diligent, professional staff from start to finish. Highly recommended.Paul B.Paul B. ★★★★★ Firstly I have to say a huge thank you to Paul the owner of FGC for being willing to take on the job of sorting out the extremely shoddy and poor installation of the Origin doors and windows fitted on my new build home, when it was built. And replacing the damaged gaskets. I had your guys with me for two days this week. What a breath of fresh air comparted to the people of originally installed my doors and windows. Extremely professional and lovely chaps. They worked tirelessly to sort out the many issues we had. Would absolutely recommend 100% THANK YOU !Response from the ownerGood Morning Paul, Thank you for taking the time to share your positive experience with us. We are absolutely delighted to receive it and are pleased we were able to resolve the issues for you. It’s been a pleasure working with you. If you have any further need in the future, please do not hesitate to contact us. Lisa S.Lisa S. ★★★★★ Very helpful and good communication, great product. Thank you.Dave S.Dave S. ★★★★★ Very happy with doors. Look great. The installation was quick and straightforward.Will recommendRH K.RH K. ★★★★★ FGC were brilliant. Great advice on the best windows to get. Extremely good installation. Always ready to solve any installation or manufacturing issues. We are extremely happy with the end result!Joy W.Joy W. ★★★★★ Frameless windows were brilliant, Liam Alfie and James were great, polite, courteous, and left the site clean and tidy. The windows look amazing, Great service from start to finish. Many ThanksRayRay ★★★★★ We love these doors and look forward to having them open a bit more once the patio has ben completed. They really have a "wow" factor and this becomes a double "wow" when people are shown how the corner can be completely opened up. It was about a year from my first enquiry to the doors being installed as there was a considerable amount of building work required to prepare the room. throughout this period I remained in touch with FGC and the service was exceptional. The installation team was on site for a day, starting early and working through to completion before driving back to Kent!! We have been really pleased with the standard of workmanship and even had compliments from other tradesmen working on the room (most of whom had never seen doors like this). These are expensive doors but the price difference from a normal set of bi-folds was well worth it for the uninterrupted view you get. The doors were installed in February but I have held off doing the review until the room was more finished so I could post a more representative picture. Once the patio is done the look will be even better than we originally envisaged. I have attached a few pictures of the room (the white table is only a temporary measure while we wait for the new coffee table).Sharon B.Sharon B. ★★★★★ From first contact to installation, my interactions with FGC have been easy, fast and professional. The end product is superb, we are so happy with our new doors - wish we had done this years ago. Well done FGC!!Jayne N.Jayne N. ★★★★★ This is the second time we have installed FGC and we are very happy with our second installation- very sleek and stylish and all staff very helpful, thanksD JD J ★★★★★ Frameless Glass Curtains have few competitors so they could take a lax approach to their work. However, that is not the case. We have had a porch installed in a space that was not square or aligned. The service from survey to finish has been above standard. Barry’s attention to detail and determination that the work would not be complete until his high standards were met was much appreciated. The communication from the admin side was clear and helpful. So all in all we will be using Frameless Glass again and have no hesitation in recommending them.Brian S.Brian S. ★★★★★ Brilliant product, what a difference, no frames to block our view of the Brecon Beacons. The service has been the best I think I have ever received and the fitting team were faultless - they travelled 5 hours to get to us in Wales, arriving 30 minutes early, working flat out without a break for 9 hours before driving 5 hours back, all without one complaint!!Catherine U.Catherine U. ★★★★★ Ordered Crittal-style French doors in aluminium. The doors look fantastic and are so much better than the ancient sliding doors I had before. The company were very friendly and easy to deal with. They were understanding of my delays due to a flood. The installers were professional and polite and poor things had to work on the hottest day of the year. Would definitely recommend FGC.Laura G.Laura G. ★★★★★ Really great service from this family run company. We love the doors and the install was top notch. Thanks!Info Oad S.Info Oad S. ★★★★★ Great service and amazing finish! Would highly recommend!paul R.paul R. ★★★★★ Highly competent office and site staff, great product and at a fair price. Couldn't be happier with the entire experience and end result.vanessa C.vanessa C. ★★★★★ From the beginning to the end, everyone at FGC have been amazing. I knew straight away that the glazing FGC would provide and install would be spectacular and how right that was! The FGC glazing allows our Edwardian stained glass door to still be a main feature and in fact it shows it off perfectly. We are so happy with the end result and can’t praise FGC highly enough, somehow 5 stars doesn’t seem to be high enough.ZorèZorè ★★★★★ Their windows are second to none. No other company in Germany, UK or anywhere else can produce such a fabulous product.Any issues that has come up, they always come & fix it. The staff are so nice and polite. For a small company they do really a great job over all. The main things are the frameless bifolds that you hardly have any frame in the line of vision and there is a 5 years guarantee. Mr & Mrs JahediFiona G.Fiona G. ★★★★★ Delighted with our new frameless glass doors. Had lots of lovely comments, even all the trades who have been working on our house have said they've not seen anything like them. Great having something a little unusual. The quality of the doors is of a very high standard. The service from FGC has been very good too, from ordering through to installation. All went very smoothly with no problems. Paid a bit more than regular bifolds, but worth every penny. Best decision, no regrets at all.Andrew H.Andrew H. ★★★★★ Great service and very welcoming for my father and I. Adrian in particular was very efficient, gave great pertinent advice and guidance on my future purchase!Des P.Des P. ★★★★★ Excellent in all aspects from initial viewing in showroom to actual installation.TonyTony ★★★★★ Excellent service and product from FGC.I have a glass-box conservatory, built with structural glass about 20 years ago. The 2 sliding doors needed replacing, along with 2 side panels, and I contacted dozens of companies selling conservatory doors and none of them were prepared to install their doors because of the perceived risks of working with structural glass.Then I found FGC who, with no fuss at all, carried out a survey, provided a very reasonable quote for the doors/panels and then installed the doors/panels on the agreed date.Communication with the FGC office was always quick and easy. The surveyor and installation team were efficient and courteous. The product works beautifully.We can now use our conservatory again. Thanks FGC.Arun S.Arun S. ★★★★★ Great company with excellent, friendly and responsive service, the guys were helpful and efficient with the installation and the slide and turn doors are a fantastic product.Matt G.Matt G. ★★★★★ Fantastic service from start to finish, from the surveying, contact with office to the workmen. I have experience through work of a number of companies providing similar products and these guys have been by far the best to deal withDavid W H.David W H. ★★★★★ FGC installed a two-panel frameless glass door at our property yesterday. Wow!! the installation is exactly as discussed, and was carried out by two of FGC's team members who were so professional and courteous. They were excellent, and we have no hesitation in recommending FGC and their team to anyone considering such an installation.We are delighted with the installation, and very pleased we chose FGC.Well done FGC!!Border S.Border S. ★★★★★ The quality of the windows / doors are second to none.The customer service was first class from placing the order to installation we were kept informed at every step.The installation team led by Richard left our house and patio cleaner than when they arrivedI would recommend FGC 100%Tony- BurnleyStephen H.Stephen H. ★★★★★ From start to finish everything was excellent.Fab u lasThank youStephen O.Stephen O. ★★★★★ BRILLIANT SERVICE FROM START TO FINISHHighly recommended.Nathan P.Nathan P. ★★★★★ We purchased a beautiful Origin sliding door and side window from FGC. FGC installed the sliding door and window on time, however the sliding door did not fit correctly. Issues can happen. FGC made the process of re-surveying and re-installation very simple. FGC is a very pleasant and professional company to deal with. We are very happy with their service and would strongly recommend them.Darius C.Darius C. ★★★★★ I love my doors! It’s transformed my place. The people are great, no nonsense, organised and efficient. I’d recommend them to anyoneAdrian W.Adrian W. ★★★★★ Excellent planning and product advice. All the staff were polite courteous and friendly.On the day of the installation, the team arrived bang on time -we live in Wales so a long drive from Kent! They had the job done by lunchtime (fitting a sliding patio door) and I have to say that on first impression of the unit, it looks and feels like solid quality.Ian J.Ian J. ★★★★★ We had a 5m stretch of these wonderful doors installed several years ago and have been very happy with the uninterrupted view of the garden that they allow from the living room. They are admired by every tradesman who sees them. A minor problem we experienced with water ingress last year was promptly and effectively resolved, and the doors were serviced for free at the same time.Response from the ownerHello Ian, thank you very much for leaving us a review and glad you're happy with your doors and our service. Elly BElly B ★★★★★ Great staff and great products! Have visited the showroom to view doors, really loved all of them! Have referred to a friend - Can't recommend enoughAdam F.Adam F. ★★★★★ Really great doors. Really are something different. Expensive, but you really pay for what you get here.js_loader

What our customers say

Dear Frameless Glass Curtains, I would thoroughly recommend anyone to use your company. Your product is excellent and the installers were delightful: on time, tidy, quick, cheerful. An initial problem was dealt with immediately. The doors have changed how I feel about living in my small house; they have made the sitting room feel double the size as the walled garden now looks like a second room. Everyone admires them. There you are, my official

As it happens, we are still sadly not in the house. We should be however at the end of February which will be great! I can however pretty much respond to the below as I have been able to test the doors. 1. Your performance was excellent from what has been reported by the builders. They mentioned that you were happy to leave you to complete the work and had no problems. They did unfortunately

Thank you for your excellent after sales customer service it is exceptional. The track coating was repaired to a very high standard by Dan the “Magic Man”, he is very professional and his work is very good, to the point that it is difficult to spot where the repair has been made. Best wishes to all at FGC for a successful future. Regards

JD
Unit has been replaced thank you, once again I find FGC have responded to a problem with a no quibble replacement, it is good to know that there is still companies left who honour their guarantee in the proper manner and send installation teams that carry out their work in a professional manner with competence and courtesy, I would be quite willing to give any prospective customers a reference if that would be of interest

Mr D
We would like to say how pleased we are with our fabulous new FGC doors and conservatory.  We thought the transformation would be great, but it’s only once they’re in that we’ve been able to see the full glory of the design – and our view!  We’ve had all the making-good done now, taken off all the plastic film and the result is we have beautiful, draught-proof doors and a lovely, contemporary conservatory. And we’d

Mr R

The door looks excellent and we’re very pleased with the

Mr H, Wales

FGC have been fantastic, from my email enquiry, always very helpful and quick to respond. On time and on schedule.  Very pleased and would definitely recommend.   English Rose Estates (Great Ormond Street)

The whole experience with FGC has been really positive from the visit to the factory to the final installation. The glazing is stunning.  Highly

Julie
Julie in Surrey
We had 3 sets of doors installed in April. We had searched far and wide for bifold doors and those supplied by FGC were undoubtedly the most striking. We have had favourable comments from visitors and the doors are functioning well. Our dealings with FGC have been excellent and they have attended since the installation to make some adjustments. Although this is an expensive product, it looks stunning and has performed well. FGC worked closely

I’d like to take this opportunity to thank the team at FGC for great communication and assistance throughout, and a top job in the installation process and of course in providing a unique sleek product. Mr M,

Mr M, Bournemouth

The service from your company has been exceptional throughout, cannot fault

Mr Thomas
Mr Thomas

The service I received from FGD was professional and prompt from the initial on site survey through to installation and completion. Added to this the finished product has exceeded my expectations. It has enhanced my home with style and individuality, and enabled me to make use of the space in a way that is ‘unique’.

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