What is double stair?

A double stair is a type of staircase that includes two separate flights of stairs that run parallel to each other. These stairs are often used in buildings with high traffic flow, such as hotels, public buildings, and apartment buildings.

Double stairs are designed to allow people to move up and down the stairs more efficiently. They are usually wider than single staircases, which helps to reduce congestion and improve safety. Additionally, they often include landing areas between each flight of stairs, which provides a place for people to stop and rest if needed.

Double staircases can be made from a wide range of materials, including wood, metal, and concrete. They can also vary in design, from simple and functional to ornate and decorative.

Overall, the double stair is an effective way to improve the flow of people through a building and add an attractive design element to the architecture of the space.