What is the space between stairs called?

The Space Between Stairs: Understanding the Riser

The vertical space between two consecutive stair treads is called the riser. It’s a crucial element in staircase design, contributing to both the functionality and aesthetics of the stairs.

The Role of the Riser

• Defines Step Height: The riser establishes the vertical distance between each step, directly affecting the ease of climbing and descending the stairs.
• Structural Support: Risers provide structural support to the treads, helping to distribute the weight and forces exerted on the staircase.
• Visual Element: Risers contribute to the overall visual appearance of the stairs. They can be closed (solid) or open (empty space), influencing the style and feel of the staircase.

Riser Height and Building Codes

• Safety and Accessibility: Building codes in the US stipulate maximum and minimum riser heights to ensure safety and accessibility for all users.
• International Residential Code (IRC):
  • Maximum Riser Height: 7 ¾ inches
  • Variation within a Staircase: No more than ⅜ inch difference between the tallest and shortest riser in a flight of stairs.
• Local Codes: Always consult local building codes for any specific requirements or variations that may apply to your project.

Open vs. Closed Risers

• Closed Risers: These risers are solid, typically made of the same material as the treads. They offer a traditional look and provide a visual barrier between steps.
• Open Risers: These risers leave the space between treads open, creating a more contemporary and airy feel. Open risers can make the staircase appear less imposing and allow more light to pass through.

Trends and Design Considerations

• Open Riser Trend: Open risers have gained popularity in modern and minimalist design aesthetics. They can create a sense of openness and spaciousness in a home.
• Safety Considerations: While visually appealing, open risers require careful consideration, especially in homes with children or elderly individuals. The open space can pose a tripping hazard or increase the risk of falls.
• Hybrid Designs: Some designs incorporate a combination of open and closed risers, offering a balance between aesthetics and safety.

Conclusion

Understanding the function and design implications of the riser is essential for anyone involved in staircase construction or remodeling. Adhering to building codes for riser height and carefully considering the choice between open and closed risers ensures a staircase that is both safe and visually appealing.