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parts of a staircase

Parts Of A Staircase – Glossary List of Stair Part Names + Diagram

parts of a staircase

Wooden staircases are a familiar sight in our homes, but have you ever stopped to wonder about the different parts of a staircase and their actual names? Or maybe you’re doing some research and can’t figure out the different names gives to the various stair parts?

Let’s break it down for you, we’ll translate the fancy terms into clear language, explaining what each piece does and how it all fits together. Knowing your treads from your risers will make measuring, cutting, and installing a breeze. So, grab your tool belt and join us as we turn you into a staircase whiz!

Have a look at the diagram above to understand exactly which stair part we’re talking about.


The tread is horizontal surface you step on while ascending or descending the stairs. It forms the top part of each step.


The riser is the vertical surface that connects to each tread. Risers form the face of the step and are located between each step.


The stringer are the sides of the staircase that connect the treads and risers together. Stringers provide structural support.


The railing that runs along the staircase, offering support and stability. Handrails are typically mounted on newel posts and balusters. There are various types and materials of handrails you can use.

Baluster (or Spindle)

The vertical posts that run between the handrail and the stair treads. Balusters come in various designs and materials, enhancing both safety and aesthetics.

Newel Post

Large, sturdy posts located at the bottom and top of the staircase. Newel posts anchor the handrail and balusters.


A flat platform or area where the staircase changes direction or provides a resting point between flights of stairs.

Remember that each part plays a crucial role in the overall functionality and appearance of your staircase.