ᐅ Patio Door: Swing Door, Lift-and-Slide Door, or Parallel Slide-and-Tilt Door?

For me, the casement doors with overlapping frames each cost about 800 € plus VAT.

A lift-and-slide door of the same size was about 1,700 € plus VAT each.

All are triple glazed. So, you pay more than twice as much.

Offer for a 3m (10 feet) lift-and-slide door with triple glazing and anthracite exterior:
Lift-and-slide door: €3150 net
Parallel slide and tilt door: €1850 net

My aunt had a PSKT door, and it was awful. It was always so jerky.

kernm23 schrieb:

Width: approx. 2 m (6 ft 7 in)

Is that the rough opening size of the wall?

After deducting the frame widths, there won't be much space left between the elements anyway...

W8ne3 schrieb:
I am also planning to install 2m x 2m (6 ft 7 in x 6 ft 7 in) patio doors.

You have similar conditions as the original poster, and the answers from 2015 still apply.

W8ne3 schrieb:
I do have enough space for French doors, but I find it a bit annoying that something always protrudes into the room.

Then just have them open outwards. I don’t see any other options than the classic symmetrical double doors with a mullion for this size.

W8ne3 schrieb:
Are there any other reasons to choose French doors?

See the replies on page 1; lift-and-slide doors don’t make sense here; folding sliding doors even less so, and tilt-and-slide doors are problematic: my former employer didn’t offer those (even though we handled every custom request imaginable that could cause warranty issues).

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The assumption is that swing doors will be used.
What should you pay attention to? What is a "must-have"?
Which glazing, uPVC/aluminum-wood? Safety glass? ...

11ant schrieb:
Then open outwards. I don’t see any alternatives to the classic symmetrical double-leaf with a mullion at this size.

Asymmetrical. One-third fixed, two-thirds operable.
Not everyone likes a mullion, and it can sometimes force you to add even more mullions to keep a consistent appearance.