Bi fold doors… help

[Freddiefox]

If you have bi fold doors, can you tell me roughy how much the door were including fitting. And how many panels? And did you have to have an rsj or similar added?
Or
If you have something different that isn’t bio fold but let’s the light in, Can you share.

Thanks

Sliding doors!

I have a 3 piece bifold, 2.8 m wide.
It's in a new build so had a suitable RSJ put in situ when built. I think it definitely needs one as it is a wide span to support.
Mine has an individually opening door on one side and the other 2 panels fold.
I can't remember how much it cost but I know that all the companies that quoted for my doors and windows arrived at a similar price for it.

I absolutely love it. It was substantially more than sliding patio doors but when open in summer it is brilliant.