There are two ways to do this project. You can buy a prefabricated arch, such as an Insta-Arch (typically between $75 and $300, depending on the size), or you can build your own.

1. This Futuristic Chromatic Arched Doorway "I’ve always been fascinated by the way we move through spaces and how architecture influences our perception of a room," says Paddy Pike.

3. The Half and Half Cabinet Door Arched cabinet doors, set into a standard frame, aren't uncommon, even in classic kitchen designs. However, I love this idea, created by designer Clara Jung of ...