Shutters are an element of window joinery. They are used to cover and protect the window. They can be made of wood, metal, plastic, and come in many different shapes and styles. Shutters are used to regulate the inflow of light into the room and to protect the window against burglary and noise. What is more, they prevent the interior of the room from heating up in the summer, and in the winter they retain heat and protect against the wind.

In some countries, shutters are one of the basic requirements in the Building Code, while in others they are merely  décor overlooks. Shutters can be fixed or movable. Some models, thanks to freely regulated slat tilt, allow achieving the desirable shading degree in building rooms.

Shutters can be matched to the architectural style of the building and are available in many variants and different colours and patterns.