The smallest width for French patio doors is actually quite wide, around 1190mm. This is because they come in pairs. So even two slim narrow doors will need a little bit of extra space.
When it comes to broader widths, French doors are a lot more flexible. As well as choosing wider doors, you can also add sidelights to your door system, which will make the doorway seem even broader. Our standard widest set of external French doors is just under 3m. Some of our products can however be made to measure, such as the Heritage style French door range.
Internal French doors aren't too desimilar, with a minimum width of 1122mm and the largest being 2996mm.