Staircase diagonal design

Quick answer：

Staircase diagonal design refers to the arrangement of steps at an angle other than the standard 90 degrees. This design is often used to create a more visually appealing or space-saving staircase. Diagonal staircases can be found in modern architecture, historical buildings, and residential homes. They come in various shapes, such as L-shaped, zigzag, or spiral, each offering unique advantages and challenges in terms of construction and aesthetics.