Stable doors open in two parts, first the top and then the bottom. They are used in places where you do want ventilation, but at the same time keep dogs outside (or kids inside).
Stable doors are very often used for kitchens.
They are hinged on the side and can open both to the inside as well as the outside.
Available in: single glazing and double glazing, up to 32mm, and in solid uPVC.
The maximum size for stable doors is 960mm x 2450mm (height).