I am wondering how they made these windows. The columns are load bearing, and the glass is mounted inbetween them. The frame around the glass is so slim, so I am wondering if the window modules (glass+frame) came from a manufacturer (if yes, which one?), or they just bought the glass, and built a frame around it, on-site?
https://www.ifitshipitshere.com/a-sweet-little-summer-cottage-in-denmark-by-christensen-co/