Have you seen those windows that open widely?
That is what you call a casement window. So, what exactly is it? More importantly, why would you need it? A casement window functions just like your typical door – it swings open. It is created this way to be able to provide superior ventilation to a room.
It is also operated by a crank handle, making it easy for anyone to open and close. A casement window can also open out right or left.
This is also available as an awning window.