Are stair risers the same as tread?

Stair Risers vs. Treads: Understanding the Difference

No, stair risers and treads are not the same. They are distinct components of a staircase, each serving a specific function. The riser is the vertical part of a step, while the tread is the horizontal part you step on.

Understanding Staircase Components in Depth

• Riser:
  • Definition: The vertical face of a step, connecting one tread to the next.
  • Function: Primarily structural, providing support and defining the height of each step.
  • Aesthetics: Contributes to the overall look of the staircase, especially in open-riser designs where they are exposed.
• Tread:
  • Definition: The horizontal surface you step on when ascending or descending a staircase.
  • Function: The primary functional component of the stair, providing the walking surface.
  • Safety: Tread depth and slip resistance are crucial for safe use.
• Additional Components:
  • Stringers: The angled, structural supports on each side of the staircase that hold the treads and risers.
  • Nosing: The projecting edge of the tread that extends beyond the riser. It can enhance safety and visual appeal.
  • Handrails: Provide support and stability while using the stairs.

Building Codes and Staircase Dimensions

In the US, building codes dictate specific requirements for both risers and treads to ensure safety and accessibility.

• Riser Height: The maximum riser height is typically 7 ¾ inches. Higher risers can lead to steeper stairs, which may be more difficult and potentially hazardous to navigate.
• Tread Depth: The minimum tread depth is typically 10 inches. A deeper tread offers better foot support and reduces the risk of missteps.
• Uniformity: It’s crucial to maintain consistent measurements for all risers and treads within a staircase to ensure a smooth and predictable stride.

Current Trends in Staircase Design

Modern design trends are influencing the use of risers and treads.

• Open Risers: Staircases with open risers, where the space between treads is left open, are gaining popularity. They create a sense of openness and visual lightness but may not be suitable for all homes, especially those with small children or pets.
• Floating Stairs: These visually striking staircases have treads that appear to float without visible support. They require meticulous engineering and careful consideration of building codes.

Conclusion

While risers and treads work together to create a functional staircase, they are distinct components with unique roles. Understanding their differences and the building code requirements that govern them is crucial when designing or remodeling a staircase. Whether opting for a traditional design with closed risers or exploring more contemporary options, prioritizing safety and adherence to building codes is essential.