How should a window box fit?
Also asked, what size should Window boxes be?
The length of the window areas should equal the lengths of the window boxes. For example, if the length of first window is 3 feet, the window box should ideally be 3 feet. If the length of the second window is 6 feet, the window box should ideally be 6 feet.
One may also ask, do window boxes damage your house?
Check for Damage The first place to look for damage is the window box itself. Boxes made of wood will eventually deteriorate and rot. Other window box materials such as painted metal or plastic will not deteriorate, but they can still drain water onto the wall below or trap moisture on the wall behind.
Flower or window box liners are plastic trays or sheets of coconut fiber material used to line the bottom of flower or window boxes and planters before potting plants with soil inside. There are so many reasons to use liners, especially in places where the weather conditions are in the extremes.