How French doors work
French doors do vary from house-to-house when it comes to style, but they are essentially large casements! This means they all tend to work in the same way. However, compared to casement windows, they have much bigger profiles to take the extra weight of the glass and frames. Dimension-wise, they’re a lot larger than windows too.
The history of French doors
Are French doors actually French? The origins of the doors go back to Renaissance Europe, and it’s debated whether this style of the glazed door came from France or Italy. But the glazed doors were used on small Juliette balconies (named after Romeo and Juliette) instead of panelled doors to flood rooms with natural light.
It became instantly popular to use large doors of glass and so French doors spread to the UK and the US.