5-layer staircase design

Quick answer：

A 5-layer staircase design refers to a staircase that has five levels or steps. This design can be used in architecture, particularly in residential or commercial buildings, to create a visually appealing and functional space. The design may consider factors such as the height of each step, the width of the staircase, and the overall aesthetic. Safety and accessibility are also crucial considerations in staircase design.