Detailed plan of a three-story kindergarten staircase

Quick answer：

A detailed plan of a three-story kindergarten staircase typically includes architectural drawings that show the dimensions, layout, and design of the staircase. It would include details such as the width and height of the stairs, the presence of railings or guardrails, and the materials used for the construction. This is important for ensuring the safety and accessibility of the staircase, as well as for the overall design of the kindergarten.