Large (3m x 7m) sliding doors

[mjc55]

Looking at the possibility of making most of one wall of the newbuild glass sliders.

 

Would be maybe around 3m tall (floor to ceiling)  and up to about 7m length with potential small glass return.

 

A bit vague I know but I'm sure there are some on here that have included something similar on their builds.

 

Is this going to be potentially very, very expensive?  Any hints and suggestions welcome.

[Conor]

For that amount of glass, you want the best glazing and system you can get, or else it'll be very hot and very cold. Allow £20k+

 

Have you hade a full heatloss / thermal model done of the design? And does it allow for that amount of glass?

 

We have 5m x 2.7m triple glazed bifolds that came in at £12k, two years ago.

[PNAmble]

We had a quote 6 months ago for a 6 meter sliding door (triple track) cero iii. 2.4 high.  £25 ex vat ex install.
 

We changed our design 

[Bozza]

1. Be careful about overheating, especially if south facing.

 

2.  If one unit is too expensive you can break it up with fixed panels either side of a slider.

 

3.   Rationel don’t do sliders but we put in their window doors.  Which are full height side hinged windows you can use for egress, might be an option.  We used a combo of their full height window doors and fixed panels but not over a huge gap like yours and broke them down with vertical breaks.  My profile pic shows what we did.

[mjc55]

4 hours ago, Conor said:

For that amount of glass, you want the best glazing and system you can get, or else it'll be very hot and very cold. Allow £20k+

 

Have you hade a full heatloss / thermal model done of the design? And does it allow for that amount of glass?

 

We have 5m x 2.7m triple glazed bifolds that came in at £12k, two years ago.

 

Thanks for that.

 

Not at the stage of heatloss etc calcs.  really just exploring options.

[mjc55]

3 hours ago, PNAmble said:

We had a quote 6 months ago for a 6 meter sliding door (triple track) cero iii. 2.4 high.  £25 ex vat ex install.
 

We changed our design 

 

Wow, not cheap!

[mjc55]

2 hours ago, Bozza said:

1. Be careful about overheating, especially if south facing.

 

2.  If one unit is too expensive you can break it up with fixed panels either side of a slider.

 

3.   Rationel don’t do sliders but we put in their window doors.  Which are full height side hinged windows you can use for egress, might be an option.  We used a combo of their full height window doors and fixed panels but not over a huge gap like yours and broke them down with vertical breaks.  My profile pic shows what we did.

 

Still at very early stage but

 

1.  West facing rear of property

 

2.  Yes, sounds reasonable, obviously fully opening is desirable but cost outweighs desirability unfortunately.

 

3.  Will have a look at pic, thanks.

 

[mjc55]

I suspect the idea of 3m high rooms will be too much anyway!  

[Kelvin]

It will be very heavy too so lots to consider structurally, and access to fit it. Our 3G 2.1m by 3.6m sliding door weighs 347kgs. 

[Russell griffiths]

We had full height 5.5 m wide doors in Australia 

we are building here now and thought about having two sets of 5m wide doors, then we thought how often you would actually have the whole back of the house opened up, and decided on one door and one large picture window. 

Probably saved a good few grand. 

[freshy]

I have a triple glazed 7.5m x 2.6m lift & slide door. I’d guess you’re looking at £20k based on mine.

[Kelvin]

On 04/12/2023 at 08:20, Russell griffiths said:

We had full height 5.5 m wide doors in Australia 

we are building here now and thought about having two sets of 5m wide doors, then we thought how often you would actually have the whole back of the house opened up, and decided on one door and one large picture window. 

Probably saved a good few grand. 

what we did too. 

[Andehh]

We had a sunflex sliding/floating corner fitted, 2.4 x 8m for about £14k fitted a year ago, double glazed but laminated etc.

 

Very happy with the doors, but the fitters were average.

[Tom]

We have a 6m and 4m run of "Cor Vision Plus" sliders meeting at a moving corner, triple glazed and solar control glass, came in at around 30k in the end. Gulp.

[Andehh]

23 hours ago, Tom said:

We have a 6m and 4m run of "Cor Vision Plus" sliders meeting at a moving corner, triple glazed and solar control glass, came in at around 30k in the end. Gulp.

 

Would love to see pics of this, bigger brother to ours by the sound of it!!

[MikeGrahamT21]

Don’t forget to price in some form of flyscreen too, for the size you said could be upwards of £2k.

 

not sure how big upvc ones go, but I have Liniar modlock, triple glazed, which cost me around £2800 8ish years ago

[mjc55]

Anyone gone for triple glazed, if such a thing exists?

[BotusBuild]

We have a 5.3m x 2.1m TG setup from Origin. For some reason can't upload picture on phone. 

i think a lot of the othe responses say they have TG too

[Pocster]

On 04/12/2023 at 06:20, Kelvin said:

It will be very heavy too so lots to consider structurally, and access to fit it. Our 3G 2.1m by 3.6m sliding door weighs 347kgs. 

We have 2 of these similar size and weight . Company stated they would crane them in ( need to go underground so an extra complication ) . On install day they moved them by hand with a lot of manpower . I indicated how (expletive deleted)ing ridiculous it was and left them too it .

[Pocster]

13 hours ago, mjc55 said:

Anyone gone for triple glazed, if such a thing exists?

Yep mine are TG . Some years ago but was around the 25k mark 

[gc100]

The whole of the end wall of my house is glazed . For large areas you will need structural glass (think airports and office buildings) which is very expensive 20k plus. What I did was put a structural beam across at 2.3 meters height and then fixed glazing about to the apex (single story barn conversion) and then a 7.5m x 2.2m 3 piece sliding door under. All 3G , I think the total cost of the glazing was about 7-8k. 

Edited March 17 by gc100

[JohnMo]

On 04/12/2023 at 01:39, mjc55 said:

West facing rear of property

So will get full low sun mid afternoon onwards. Plan for overheating. We have 36m2 of glass in out living room, which is southwest facing. It can get very hot if you are not careful.

 

Not to bad in the winter, with triple glazed 0.6 U value, but the lounge looses as much heat as the rest of the house.