I am building a winter garden where I will have a 6-meter window section. The two outer sections are fixed while the two in the middle can slide. According to the manufacturer of the sliding doors, the glass sections must not be loaded with any weight. My idea is to reinforce the fixed frame with a steel beam of type VKR (rectangular profile).
The question is what size is required?
I have made a small sketch of how I intend it to look. The total load is about 34 kN for the four posts.