ᐅ Excessive glass thickness for patio doors due to weight considerations

Hello everyone,
I am planning to have my windows replaced soon. One of the terrace windows that needs to be replaced measures 240cm (95 inches) wide and 218cm (86 inches) high. Currently, there is a wooden window from the 1970s of this size installed. Now the supplier tells me that, due to the weight, they can only install it as two separate units. When I asked further, they said that for structural reasons they would otherwise have to use laminated safety glass with a configuration of 8-16-10. Could this be correct? It seems extremely oversized to me.

Thanks for your help.
Regards, Jan

Such a panel can easily weigh around 300kg (660 lbs). But I don’t understand why two single panels should weigh less.

tomtom79 schrieb:
But I don’t understand why two single elements would weigh less.

According to the original poster’s statement, the glazier could then use thinner glass = less weight.

Ah, that sounds plausible now 🙂

Hello,
I think I didn’t phrase my question clearly enough.
I am aware that a glass pane in the specified design likely weighs 250 kg (550 lbs) or more and is therefore very difficult to install.
However, the question is whether such a glass thickness is really necessary for a window of this size. And why laminated safety glass? For example, 5-14-5 mm (0.2-0.6-0.2 inches) or 6-16-6 mm (0.24-0.63-0.24 inches).
The currently installed pane does not seem to be any thicker...

Best regards

I don’t know why I can’t edit the post now.
A quick correction regarding:

JBoeck schrieb:
Also 5-14-5mm or 6-16-6mm.

The question was actually whether a pane in the configuration 5-14-5mm or 6-16-6mm would also be sufficient.