UK Stair Parts

Types of Stair Parts

What are the different types of stair parts available?

When it comes to stair parts there are a number of different types available. From baserails to newel posts, there are many parts to choose from. We’ve compiled a list of the most parts and where they are typically used.


A spindle is a decorative column that runs in a series up the staircase and can also act as a support the handrail. They are also known as balusters. This type of part typically comes in wood or metal, and can be found on most types of staircases.

They are one of the most essential parts of the staircase. Balusters and spindles play an important role in the overall look of your staircase as they are the first thing that most people tend to notice about your stairs.


A baserail is the part of the stairs that supports the balusters they run seamless up the side of the stairs, with the balusters, slotting into it to. Baserails can be used on all types of staircases from wood to glass, and many more.

The spindles are designed to fit directly into the baserails, either through pre-cut slots or attached to it through the use of clamps of brackets. Typically coming in many different materials, the part play an important role in the staircase, especially when it comes to the safety around stars.


Handrails act as both a decorative and practical stair part. This type of part is also known as a bannister. They are available in a range of styles, materials and colours and can be used to support people when they ascend or descend the stairs.

Ensuring your bannister is correctly installed, can ensure that people are kept safe and supported on the stairs. UK law requires that staircases come with one or two bannisters, depending on the style, height, and angle of the stairs.

Treads and Risers

The tread at the top of the staircase. It is the transition from the stairs to the landing. It can also refer to the part that runs along the bottom edge. A riser is the vertical face of each step.

Wood treads are one of the most common types available. Treads are typically available in a range of designs, patterns and finishes and can instantly make your staircase look more elegant and attractive.

Newel Posts

Newel posts are the main support for the handrail. They are installed at the start and end of a handrail, and help to support the overall structure of the staircase. Posts are commonly found on staircases that have an open side, or a landing over hang.

Solid newels are different from hollow newels due to the construction techniques. Solid posts are turned on a lathe and can be highly decorative, they typically need to be fixed to a newel base for installation. Hollow ones are sometimes known as box posts. They are left hollow or filled, and the fitted with a cap.

Newel Caps

The decorative or fancy cap that is placed over a post on your stairs, is referred to as a newel cap. Caps come in a wide variety of styles and designs, ranging from plain and simple, to decorative and engraved. A cap can allow you to add some personality to your staircase.

They are available in a range of materials depending on the type of staircase, but are most commonly made out of wood. Wooden staircases tend to be popular due to the amount of customisation that is available for them.