Practical size for windows and roller shutters

I don't want it to sag or be a super special custom job.

I think with their glass sizes you've long since left the standard behind ;)

The roller shutters are then simply made with a separation, which is not uncommon at all

Separation then also means two roller shutter boxes with two motors?

I rather think: a box, a wave, a motor - only two pairs of guide rails and two sections of blinds.

Great. I was missing that information. Thank you

Is it actually possible to feed the power cable for the motor into the roller shutter box from above? We operate every roller shutter with a power cable from the utility room (control via KNX). The cables are laid in the concrete ceiling and then come out at the ceiling above the roller shutter. Connection to the motor via wago terminal in the box. I would like to avoid a distribution box and drilling in the exterior wall

This is the floor plan of the ground floor with the two windows. We can still change the window openings.