Not all large or picture windows are made equal. Before you plan any custom window treatment or specialist blinds, you need to consider what challenges you are trying to manage as well as the visual effects of your window dressing ideas. Large window blinds can work like a canvas or flat wall when closed, so you need to put some serious thought into large window blinds.
Window treatments for tall windows or wide windows suit different materials and technically will have limitations. And they can create a draughty sensation if not properly insulated, and a burning glare from the sun if not easy to control the amount of light.