Japanese pergola is an outside structures built to mark the transition from one structure, garden or lawn area to another, to provide support for climbing plants or to cast shade over a walkway. The most pronounced, consistent element to a Japanese pergola is gently scrolled beams within its open roof. Lattice work sometimes makes an appearance. And, with an eye for minimalism, frosted glass panels and steel supports can even be seen in Japanese pergolas. A Japanese pergola has a floor made of wood or stone. The seats are usually built into the pergola, with a table, permanent planters and flower containers optional. Outdoor lighting is important; using Japanese lanterns for soft light adds to the atmosphere of the pergola. Tatami floor mats, Japanese screens, bamboo, azaleas and carefully trimmed pine trees highlight the Japanese structural elements.