Switch from leca foundation to install a window

[Dawwa76]

Hello,
I have a window that is b90 h120.
They are to be installed in a lecablock 19x19cm which is the foundation of my two-story house.
How best should I install the window?
Grateful for an answer

 

[Plupp 405730]

Hi,
I have a window that is b90 h120.
They will be mounted into a lecablock 19x19cm which is the foundation for my two-story house.
What's the best way to lintel the window?
Grateful for answers

Buy a leca beam about 1500mm which you install in the course above the intended window.