Are alternating tread stairs safe?

Debunking the Myth: Are Alternating Tread Stairs Safe?

In short,

Yes, alternating tread stairs can be safe when designed, constructed, and used correctly. They have specific applications and considerations but can offer a space-saving solution while maintaining safety standards.

Understanding the Safety of Alternating Tread Stairs

What Makes Alternating Tread Stairs Different?

• Tread Design: Alternating tread stairs feature treads that alternate in direction, with one tread designed for the left foot and the next for the right foot. This unique configuration allows for a steeper incline compared to traditional stairs, thus saving space.
• Steeper Incline: The steeper angle of alternating tread stairs can be around 50-70 degrees compared to the standard 30-40 degrees for conventional stairs. This steepness can impact the perceived safety and ease of use.
• Specific Applications: Due to their design and steeper incline, alternating tread stairs are typically used in situations where space is limited and traditional stairs aren’t feasible. They are commonly found in industrial settings, attics, lofts, and compact homes.

Safety Considerations & Building Codes

• Handrails: Building codes in the US mandate the use of handrails on both sides of alternating tread stairs to ensure user safety.
• Tread Depth & Riser Height: While the overall stair angle is steeper, individual tread depths and riser heights generally adhere to similar standards as conventional stairs to provide adequate foot support and minimize tripping hazards.
• User Familiarity: The unique design of alternating tread stairs requires users to pay close attention to their footing, especially when descending. Clear signage and adequate lighting are important for safety.
• Accessibility: Alternating tread stairs may not be suitable for everyone, especially those with mobility limitations or balance issues.

Advantages and Disadvantages

• Space-Saving: The primary advantage of alternating tread stairs is their compact footprint. They can fit in tight spaces where traditional stairs would not be possible.
• Cost-Effective: Due to their smaller size and specialized use, alternating tread stairs can be more cost-effective than traditional stairs in specific situations.
• Potential Safety Concerns: The steeper incline and alternating tread design can increase the risk of slips and falls, especially for those unfamiliar with their use or with impaired mobility.
• Limited Applications: Building codes typically restrict their use to areas where standard stairs are impractical. They are not recommended for high-traffic areas or primary means of egress.

Remodeling and Building Trends

• Space Optimization: With the growing popularity of smaller homes and multi-use spaces, alternating tread stairs are increasingly considered as a space-saving solution.
• Modern Aesthetic: Their sleek and minimalist design can complement contemporary interiors and add a unique visual element to a space.
• Safety Advancements: Modern designs and manufacturing techniques have improved the safety features of alternating tread stairs, with anti-slip surfaces and ergonomic handrails.

Conclusion

Alternating tread stairs can be a safe and practical option when designed and used correctly. While their steeper incline requires extra attention and may not be suitable for everyone, they offer significant benefits in terms of space-saving and cost-effectiveness. When considering alternating tread stairs for your project, consult with a professional to ensure compliance with building codes and prioritize safety features.