When it comes to installing railings, one of the most common questions homeowners and DIY enthusiasts ask is: do balusters go on the inside or outside of the railing? The answer to this question is crucial as it affects the overall aesthetics and safety of your railing system.

Balusters, also known as spindles, are the vertical supports that connect the handrail to the bottom rail in a railing system. They play a significant role in determining the look and feel of your staircase or deck. So, where exactly do balusters go?

Understanding Railing Components
Before we delve into the placement of balusters, it's essential to understand the basic components of a railing system. A typical railing consists of a top rail (handrail), a bottom rail, balusters, and sometimes, a newel post at the bottom for support.

The top rail, or handrail, is the horizontal piece that you hold onto for support. The bottom rail is also horizontal but is placed at the bottom of the balusters. Balusters are the vertical pieces that connect the top and bottom rails.
Balusters and the Top Rail

Balusters are typically installed from the top rail downwards. This means that the top of the baluster is inserted into the top rail first. The baluster is then secured to the bottom rail from below. This method ensures that the balusters are securely held in place and can bear weight effectively.
Installing balusters from the top down also ensures that the balusters are evenly spaced. This is because the top rail provides a consistent reference point for the balusters. If you were to install the balusters from the bottom up, it would be challenging to maintain even spacing.
Balusters and the Bottom Rail

After the top of the baluster is secured to the top rail, the bottom of the baluster is then secured to the bottom rail. This is typically done from below, using screws or other fasteners. The bottom rail provides additional support and stability for the balusters.
In some cases, the bottom rail may not be present. In such cases, the balusters may be secured directly to the floor or the stringer (the supporting structure of a staircase). However, the principle of installing the balusters from the top down remains the same.
Baluster Placement: Inside or Outside?

Now that we understand how balusters are installed, let's address the question of whether balusters go on the inside or outside of the railing.
Balusters are typically installed on the outside of the railing. This means that the balusters are placed between the top and bottom rails, with the outer edge of the baluster flush with the outer edge of the rails. This is the standard installation method and is used in most railing systems.

















Why Outside Placement is Standard
There are several reasons why balusters are typically installed on the outside of the railing:
- Safety: Installing balusters on the outside of the railing ensures that the balusters provide a barrier to prevent falls. If the balusters were installed on the inside, they would not provide this safety function.
- Aesthetics: Installing balusters on the outside of the railing creates a clean, uniform look. It also allows the balusters to be seen from both sides of the railing, which can enhance the overall appearance of the railing system.
- Structural Integrity: Installing balusters on the outside of the railing allows the balusters to bear weight more effectively. This is because the balusters are better able to distribute the weight of the railing system and any loads applied to it.
When Might Inside Placement be Used?
While outside placement is the standard, there may be instances where inside placement is used. For example, in some architectural styles, such as Arts and Crafts or Craftsman, the balusters may be installed on the inside of the railing to create a specific look.
Inside placement may also be used in situations where space is limited. For instance, if a railing is being installed in a narrow space, installing the balusters on the inside may allow for a wider railing without encroaching on the available space.
However, it's important to note that inside placement can compromise the safety and structural integrity of the railing system. Therefore, it should only be used by experienced professionals who understand the implications and can ensure that the railing system is still safe and structurally sound.
In conclusion, balusters typically go on the outside of the railing. This is the standard installation method and is used for safety, aesthetic, and structural reasons. While there may be instances where inside placement is used, this should only be done by experienced professionals who understand the implications. If you're unsure about the placement of your balusters, it's always best to consult with a professional to ensure that your railing system is safe and structurally sound.