External bifold standard sizing?

[Matt540]

At the final design stages of my build and just going over the small details. The architect has a 4.25m bifold to the garden and in the spirit of trying to help my budget as much as possible I’m trying to make sure I have a standard size opening. 
 

from what I’ve seen 4.2 is available along with 4m. With 4m being a bit cheaper naturally. 
 

Any thoughts or expertise on standard sizes?

 

thanks

matt

[nod]

There all made to order 

But 4.2 is a good size 

It would give you four doors 

Most recommend keeping the glass under 1000

From memory our glass was about 910

[Conor]

Odd number of panes is a good idea as you will have a "normally" opening master door at one end, a good idea if you plan on using it regularly as an access/egress door.

 

Leafs are normally 700-1000mm each. So for a 4200 opening you could have 5 840mm leafs. Either that or 4 as above would be smashing.

 

We've a 5 leaf, 4620mm door arriving in two weeks time!!!! 

[nod]

Bifolds look great 

But in reality they are not that practical 

We are going to have two pairs of sliders in our next build 

[Matt540]

Thanks guys. Doesn’t seem like it’s going to make much of a difference then