Curtains from wall to wall make the window visually wider (as if the window extends to the wall, but is covered with curtains), and the height from the ceiling to the floor (you can even “put” the curtains slightly on the floor) makes the ceilings visually higher.
The simplest and most effective way to calculate the length of the cornice is to add 30 cm to the width of the window opening.
This is the minimum size at which the cornice is hung so that there are 15 cm protrusions on each side of the opening.
This will allow the curtains, when open, to gather outside the window without obstructing the view through them.
The type of fastening of the cornice or brackets must be strong enough to support their weight, since blackout fabric is heavier and denser than regular fabric.
Preference should be given to a metal curtain rod, since curtains made of blackout fabric are quite heavy, and not every curtain rod can withstand their load.
Using a ceiling cornice can visually increase the height of the ceiling, which is skillfully used by designers.
Ceiling cornices can be used to divide the room if you hang curtains.
Using wall-to-wall curtain rods can visually expand a room.
Based on the number of sales, we can note that the most fashionable curtain rods today are aluminum profiles and forged ones.
Aluminum profile curtain rods are not only popular, but also the most practical curtain rods on which you can hang lambrequins, bandeaus, light, medium and heavy curtains.