What is the trim on stairs called?
Staircase Trim: The “Skirtboard” and Its Significance
Brief Summary
The trim that runs along the wall side of a staircase, following its incline, is technically called a skirtboard. It serves both aesthetic and functional purposes, enhancing the visual appeal of the staircase while protecting the wall surface from scuffs and damage.
Expanded Answer
Defining the Skirtboard
- Placement: The skirtboard is installed against the wall on the “closed” side of the staircase, meaning the side where the treads and risers meet the wall. It runs parallel to the stringer (the structural support board) and follows the angle or pitch of the stairs.
- Material & Finish: Skirtboards are typically made of wood, often matching the material and finish of the treads or risers for a cohesive look. They can also be painted or stained to create a contrasting accent.
- Construction: The skirtboard is essentially a wide, flat board that is cut and shaped to fit the specific angle and dimensions of the staircase. It is typically attached to the wall framing using nails or screws.
Functions of the Skirtboard
- Aesthetic Enhancement: Skirtboards create a clean and finished look, concealing the rough edges of the stringer and the wall framing. They contribute to the overall visual appeal of the staircase and can be customized with decorative moldings or profiles.
- Wall Protection: The skirtboard acts as a protective barrier between the staircase and the wall, preventing scuffs, scratches, and other damage from foot traffic or moving objects.
- Ease of Cleaning: The smooth surface of the skirtboard is easier to clean than the textured surface of a wall, making it more practical in high-traffic areas.
- Sound Insulation: In some cases, the skirtboard can contribute to minor sound insulation by reducing the transmission of impact noise from footsteps on the stairs.
Building Codes & Skirtboards
- Not Structurally Required: Skirtboards are not typically mandated by building codes in the USA, as they are primarily decorative and protective elements.
- Fire Safety: In certain occupancies or building types, fire codes may require the use of fire-rated materials for skirtboards, particularly in egress stairways.
- Accessibility: If the staircase is part of an accessible route, the skirtboard should not create any protruding obstacles that could impede wheelchair users or those with mobility impairments.
Design Trends & Considerations
- Modern Minimalism: In contemporary designs, skirtboards are sometimes omitted altogether, leaving the stringer exposed for a more minimalist and open feel.
- Contrasting Colors: Painting the skirtboard a different color than the treads or risers can create a striking visual accent and highlight the staircase’s architectural details.
- Decorative Moldings: Adding decorative moldings to the top or bottom of the skirtboard can enhance its visual appeal and complement traditional or classic design styles.
Conclusion
The skirtboard, also known as a trimboard, is an essential element in staircase design, providing both aesthetic and practical benefits. While not structurally required, it enhances the overall look of the staircase, protects the wall, and simplifies cleaning. Understanding the purpose and design possibilities of skirtboards allows you to make informed decisions for your staircase project, ensuring a beautiful and functional result that complements your home’s style.