Key Takeaways
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Timber stairwells can safely integrate rising barriers for fall protection without compromising design aesthetics.
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Early coordination between architects, structural engineers, and lift designers ensures space, structure, and finishes align.
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Precise void width (ideally 300 mm) and load-bearing shaft wall design are critical for housing the rising barrier mechanism and maintenance access.
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The system typically supports a 300–400 kg load capacity and operates at around 70–80 dB noise level for short activation periods.
Introduction
Following on from Rising Barrier Stairwell Safety, this article explores how Sesame Access engineers design rising barrier systems for timber staircases, maintaining safety, acoustic comfort, and architectural intent.
This design solution is increasingly popular in buildings where a timber structure or heritage aesthetic is required. By combining load-tested engineering and precision fabrication, Sesame ensures rising barriers fit seamlessly into timber frameworks while complying with Building Regulations Part M and BS 6440:2011 accessibility standards.
The Role of Shaft Design in Rising Barrier Safety
The central shaft functions as both a mechanical enclosure and a safety barrier, preventing falls down the stairwell while concealing the rising barrier mechanism. For this project, the Sesame team worked with architects to define a clear internal void of 250–300 mm, constructed with timber framing, plasterboard lining, and a smooth plaster finish.
To ensure stability and long-term durability, Sesame’s engineers recommended an independent aluminium support frame capable of carrying a 300–400 kg operational load. This structure houses the rising barrier’s drive system and access panels while maintaining aesthetic continuity with the stair design.
This approach mirrors the engineering principles seen in the Wellington Lift and Pimlico Lift, both of which integrate concealed platforms into confined or listed environments.
Managing Space, Sound, and Structure
In timber staircases, space efficiency is vital. Achieving a 300 mm shaft width provides the flexibility to include insulation, removable access panels, and acoustic protection. The barrier’s hydraulic pump typically runs at around 70–80 dB for 6–7 seconds during operation, so placement matters.
If sound reduction is a priority, the pump can be relocated to a nearby cabinet or remote plant area. Similar acoustic principles are applied in the Kensington Stairlift and Mayfair Stairlift, both known for quiet, low-vibration performance.
The Westminster Equality Act Lift also demonstrates how accessibility systems can be seamlessly integrated within narrow architectural footprints without compromising acoustic comfort or mechanical strength.
Waterproofing and Weather Considerations
When rising barriers are located near roof hatches or terraces, weather management becomes a structural priority. Drainage, sealing, and waterproof materials ensure the longevity of both the stair and the lift mechanism.
Sesame engineers apply the same resilience principles outlined in Can Sesame Lifts Be Installed Outdoors? Managing Water, Extreme Weather and Harsh Environments, where outdoor installations are designed to handle rain, temperature swings, and surface run-off without compromising electrical or mechanical integrity.
Collaborative Engineering and Pre-Build Testing
To ensure precision, Sesame Access assembles and tests each rising barrier unit in its workshop before site delivery. This off-site testing confirms the barrier’s movement range, load performance, and noise output in a controlled setting, reducing site-time risks and simplifying installation.
This same collaborative workflow is discussed in Rising-barrier-stairwell-safety, which explains how detailed pre-installation coordination avoids delays and ensures consistency between design drawings and site conditions.
Frequently Asked Questions (FAQ)
What is the load capacity of a timber staircase rising barrier?
Typical systems are designed for approximately 300–400 kg of operating load, depending on structural reinforcement and finish type.
How wide should the central shaft be?
A minimum of 300 mm overall width is recommended to accommodate the drive mechanism, access panels, and plasterboard finishes.
Can rising barriers be retrofitted in listed buildings?
Yes. By using independent aluminium frames and non-intrusive fixing methods, rising barriers can be integrated into heritage staircases without altering original structures.
What are Building Regulations Part M requirements for stairwell barriers?
Part M requires continuous guarding on staircases to a minimum height of 900 mm and adequate protection against falls. Rising barriers provide a compliant, retractable alternative that meets these safety provisions.
How noisy is the rising barrier in operation?
Noise levels average 70–80 dB during a 6–7 second lift or descent cycle. Acoustic linings or remote pump locations can further reduce this.
Can the system be installed outdoors?
Yes. Sesame rising barriers can be weather-sealed with drainage, corrosion-resistant materials, and IP-rated electrical enclosures for external use.
Next Steps
To discuss how Sesame Access can integrate bespoke rising barrier or retractable platform lift solutions into your project, book a Teams Meeting with one of our Project Managers:
https://www.sesameaccess.com/book-a-meeting