How to get a flush threshold on sliding doors

Creating a flush threshold on sliding doors as well as effective drainage and weather protection has many benefits when planning a new extension.  Not only does a flush threshold provide a very attractive detail with the doors open or closed, but it also provides step-free access as you move in and out of your home.  We explain everything you need to know to plan and execute the sought-after flush threshold for your new doors.

flush threshold on sliding doors
A good example of a level threshold on sliding doors.

Understanding how a flush threshold on sliding doors works.

When planning a new extension, working with your chosen door supplier as well as your architect or builder guarantees the right result. Early planning also means everyone involved with your new extension works together. As a result, costly mistakes and delays are avoided.

First of all, is choosing the right door.   You need to know which products come with the option of a flush threshold.  Generally speaking timber and PVCu patio doors do not come usually come with this functionality.  Our range of aluminium sliding patio doors all come with options for a standard, a low as well as a flush threshold arrangement.

The doors having a low or flush threshold option connects your inside and outside spaces.  Your internal flooring meets the threshold on the inside face and your decking and slabs outside. The biggest advantage is not only a better-looking threshold but also improved access.  If you use pushchairs or have a wheelchair user in the family, a flush threshold on sliding doors makes sense.

However, equally important is the patio door and its design. Your doors must offer all the weather protection as well as effective drainage of water to the outside. Large sliding doors must perform faultlessly in the summer, opening up your home. Likewise, you expect them to protect your home from the weather in the winter and remain water-tight.

Drainage is essential for any flush threshold on sliding doors.

The best advice we can give is to talk to your door installer as early as possible as well as involving your builder.  One useful tip is for your builder to physically see a sample of the sliding door track and see the doors installed.  Only by seeing the physical track can your builder ensure the structural opening and ground level works when the doors arrive.

Our showroom has the latest minimalist Origin inline sliding door offering a flush threshold when designed as part of the build. Also available is a range of dry-glazed inline and lift and slide doors.  These too offer a low or flush threshold.

In order to get the best result, drainage consideration is part of your planning. Also important is knowing what inside and outside floor levels are.  The inner and outer floor levels are flat and must prevent rainwater outside finding its way inside or crossing the flush threshold.  Therefore when you and your builder understand the specific detail of the sliding door track, your new doors will work as intended. They will also give you excellent weather performance, sealing the door at the critical flush threshold and all around the doors too.

The drainage provisions on getting a flush threshold on sliding doors need not be complicated when planned early and correctly.  Get in touch with us to ask any questions.  We work with you as early as needed helping you understand what’s needed and helping you or your builder take care of all the details.

Aluk sliding patio doors

Flush threshold aluminium sliding patio doors.

Similarly, the doors themselves need to provide suitable drainage.  All our doors come with factory drainage machined into the bottom track or cill section.  Our doors come made to the specific requirements laid down by the designers of the product.  This design is also what enables doors to come with independent testing with certification on air, wind and water penetration.

A well-designed door comes with suitable tracks, drainage blocks and machined drainage slots.  Many door profiles also come with rebates, seals and other features.  All of these work to seal the doors and push any water on the track effectively to the outside and away from the doors.

Finally, the drainage channel by your builder moves the water away into the ground beneath.

Top Tips for achieving a desirable flush threshold.

  • Ensure your doors form part of your early planning, not when your opening is ready.
  • Your builder benefits from seeing the door track, it’s sizes and detail. This will achieve the best result.
  • Deeper thresholds on three or four panel doors also mean a different floor design to ensure they sit flush.
  • See the doors installed in a showroom understanding the finished sizes on both sides of the patio door.
  • Make sure everyone is aware of the inner and outer floor finished sizes.
  • Remember, the bigger the opening, the greater the likelihood of this not being 100% level.

Contact your local sliding patio door specialists.

Take a look at our portfolio of projects showing us working with builders at the critical build stage.  We supply and fit a flush threshold on sliding doors as well as our bifolding doors.  Talk to us today to discuss your next project.  Or why not visit our showroom and see our flush thresholds in a real world setting?

 

 

Published on February 21, 2019

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Customer Reviews

Fantastic service, great customer care. 5****
Angela I.
Angela I.
08:40 02 Jul 20
Good staff ,great fitters excellent product!
Paulo R.
Paulo R.
17:45 07 Jun 20
Open Living installed Origin bi-folding doors for our home. Their quality and service has been excellent throughout. Very trustworthy company. Right from the start, they provided good advice to help us select the right doors for our home; their quote was very competitive; their customer service was excellent throughout as they kept us updated on progress. The quality of the doors and the installation has been top-notch. Would highly recommend.
Kinjal P.
Kinjal P.
11:06 05 Jun 20
Bought a bifold door for our house extension. Great quality products and fantastic service. Very happy with Open Living
Ajith S.
Ajith S.
14:37 21 May 20
We have just had are bifolding doors fitted,We're over the moon. Marsha is very helpful and friendly. Service was great 😀Would recommend open living.Geoff
Geoff P.
Geoff P.
10:01 18 May 20
Open living installed our ORIGIN bi-fold doors about a year ago now. The fitters were great guys with really good standards. We are so pleased with our installation. It’s great 👍
Phil B.
Phil B.
22:48 02 May 20
We purchased 1 set of bifold and 1 set of French patio doors, both Origin. Sales approach and customer service was excellent. Fitting and installation also excellent. Can't fault the product, either. Would have been 5 stars if it wasn't for an issue we had around the height of the threshold, which turned out to be much higher than we wanted/were expecting. This issue was resolved in a satisfactory way after discussion. Would definitely recommend, but my advice is to make sure the threshold height for patio doors is agreed at the survey and written on the paperwork before parting with any money.
Ashley B.
Ashley B.
07:52 10 Mar 20
Lovely people to do business with, we bought some BiFold doors and a window from OpenLiving. We did have a couple of minor teething issues once fitted but these were dealt with quickly and without fuss. Recommended!
Dino L.
Dino L.
14:03 28 Sep 19
I looked into a number of companies before deciding on Open Living in Letchworth for our bifold doors. I wanted the bifolds to be from a manufacturer that was very regarded, and Origin (though Open Living can also supply from Schuco and some other suppliers) certainly fall in that camp. I also liked the fact that Open Living were close to home, which made repeated visits to their showroom easy to make. Throughout the process, Linda and Marsha were professional and courteous and I would thoroughly recommend anyone who is looking to get bifolds to put OpenLiving Ltd on their shortlist.
Roy
Roy
16:16 04 Jul 19
So far I have ordered 12.5m sliding doors, 1 set of aluminium bi-folds and 5 windows from Open Living. The fitters are all great guys, and they take time to do a good job.The service and the products supplied have been excellent. I will be ordering more windows and do not hesitate to recommend them.
jeff H.
jeff H.
11:30 17 May 19
Had some OW80 windows that were fitted some time ago (by other installers, who had lost the cill caps). Marsha kindly helped me get some replacement items from Origin despite there being no financial incentive for open living to do so. Assistance has been very much appreciated and would highly recommend.
Mark I.
Mark I.
07:32 13 Mar 19
Great service and choice of products. Highly recommend Open Living
Allison M.
Allison M.
11:11 10 Dec 18
Great service from start to finish. The origin windows and doors look fab. Can highly recommend.
Emma G.
Emma G.
11:15 27 Nov 18
Great price on a roof lantern. Installed on schedule.
Niall R.
Niall R.
14:51 31 Oct 18
Great Service from start to finish. Communication was great. The fitting team were first classWw will recommend and use again in the future.
Asa H.
Asa H.
18:30 04 Sep 18
Superb all roundMarsha was polite and informativeThe system itself is sleek and works greatThe fitter I had was polite and very effective, clean and professionalAnd the price was not only reasonable but the cheapestI genuinely don’t know why you would opt for a more expensive system or company when the origin system provided by this company does it allSuper happy and will use on other properties I haveUse these guys, awesome 3772.00 for 3 leaf fitted in a week!! Immense !LukeBishops Stortford
luke J.
luke J.
18:33 18 Aug 18
Great service and brilliant product. Really happy with how the house now looks. Couldn’t recommend them any higher.
Stuart C.
Stuart C.
18:06 23 Jun 18
Had a great experience with Open Living. We had a 6m run of Origin bi-fold doors, an Atlas sky light some upvc windows installed. Customer Service and communication was good throughout, the installation guys did a good job and their technical guy was helpful with determining levels so we could achieve a level and flush threshold on the door. On top of this they were by far the lowest priced installer we found for the Origin doors which we had quoted by another three suppliers. Would recommend to others and will use again.
Richard N.
Richard N.
20:02 22 Jun 18
Great customer service from start to finish. Very helpful and competitive price.Installation was fast and of good standard.Would highly recommend Open Living.
Noleen P.
Noleen P.
11:15 06 Jun 18
We weren't quite sure what bi-folding doors would be best but all the options were clearly and concisely laid out before us and some great solutions suggested to the issues we hadn't been able to work out on our own or with our builder. The showroom has lots of choice, brilliantly set out. We decided that Open Living would install our doors and they came and did a wonderful job.Looking forward to the spring to really get our new "open living" lifestyle underway!!
Paul S.
Paul S.
17:26 27 Feb 17
We have a corner bifold set, great installation thank you!
Kate B.
Kate B.
19:25 11 Jun 16