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When choosing a professional ladder, most people focus on height, material and load rating. However, one detail is often overlooked: The shape of the rung. It might seem minor, but in reality, rung profile has a direct impact on comfort, fatigue and suitability for prolonged trade use. In this guide, we explain the difference between square rung ladders and D-shaped rungs , and why rung design matters more than you might think. What Is a Square Rung Ladder? Square rung ladders use rungs which have flat faces and defined corners. When the ladder is stored vertically, the rung appears level and square. However, ladders are not climbed vertically. Following the HSE 1-in-4 rule , they are typically positioned at approximately a 75-degree working angle . At this climbing angle, something important happens. The foot does not rest on the flat face of the square rung. Instead, it often rests on the corner edge of the square profile. This changes how pressure is distributed through the sole of the foot. Why Rung Shape Matters at a 75-Degree Angle When positioned correctly against a structure, a ladder leans forward at a 75-degree angle. This means the user’s weight transfers onto the leading edge of the rung. With square rungs: The corner edge becomes the primary contact point The surface area under the foot is reduced Pressure is concentrated rather than distributed For very short climbs, this may not be noticeable. However, for repeated climbs, prolonged standing or trade work involving tools and materials, the difference becomes more apparent. Reduced surface contact can increase foot fatigue and discomfort over time. This is particularly relevant for: Building work Maintenance tasks Electrical installations Facilities management Repeated daily ladder use The Design of D-Shaped Rungs Lyte ladders use D-shaped rungs specifically to address this issue. A D-shaped rung presents a broader, flatter stepping surface when the ladder is positioned at its correct working angle. This means: A greater portion of the foot makes contact with the rung Weight is distributed more evenly Pressure points are reduced Standing comfort is improved Rather than resting on an edge, the foot rests on a shaped surface designed for climbing ergonomics. For professional users who spend more than “two minutes up and down”, this matters. Comfort and Fatigue in Professional Environments Professional ladder users rarely climb once and come down: They climb repeatedly. They carry tools. They pause mid-task. They reposition. They work at height for longer periods. Small design differences can compound over the course of a working day. Comfort is not a luxury feature. It is part of fatigue management. Reduced fatigue could contribute to: Better balance More secure footing Improved confidence at height Lower likelihood of rushed descent This is why rung profile is considered carefully in professional ladder design. Are Square Rung Ladders Unsafe? Square rung ladders are used in various markets and applications. The key consideration is suitability. For occasional, light-duty access tasks, square rungs may be acceptable. For frequent, professional or industrial use, rung ergonomics become far more important. At Lyte, our ladders are designed specifically for trade and industrial environments. That includes: Repeated daily use Load carrying Outdoor exposure Extended standing time Rung profile is part of that design philosophy. Design Choices Reflect Intended Use When selecting ladder equipment (ideally for low-risk, short duration tasks), it is important to consider: Frequency of use Duration of use Environment Load being carried User comfort over time Not all ladders are designed for the same application. Lyte ladders are engineered with professional users in mind, and D-shaped rungs form part of that approach. When evaluating ladders, small details often reveal the intended market. Rung shape may seem minor at first glance, but at a 75-degree working angle, it changes how your foot contacts the ladder entirely. For professional environments where ladders are climbed repeatedly and used for extended periods, comfort and load distribution matter. Choosing purpose-designed equipment helps ensure the ladder supports the user, not the other way around.

Working on flat roofs and elevated workspaces is a common requirement across construction, transport, facilities management and utilities. Yet it remains one of the most challenging areas to manage safely. Whether accessing the roof of a bus, a welfare unit, a container, a substation or a commercial building, safety at the point of access, plus edge protection on the roof itself is critical. The challenge of accessing flat roofs safely Flat roofs and elevated workspaces are widely used for: Plant and equipment maintenance Vehicle and fleet servicing Inspections and surveys Installation and repair work While the work itself may be straightforward, getting safely onto the roof and working hands-free when in the workspace is often where problems arise. Common issues include: Limited or no edge protection Unsafe transitions from access equipment to roof Increased risk of falls during access and egress In many environments, these risks are difficult to eliminate using standard ladders or basic access equipment. Introducing the Lyte Boxing Ring Tower (BRT) The Lyte Boxing Ring Tower (BRT) provides a fully enclosed overhead workspace that creates true 360-degree fall protection around the work area. This unique “boxing ring” design removes the need to install temporary edge protection before stepping onto the flat roof surface, offering a safer, faster setup for a wide range of elevated tasks. The BRT integrates with Lyte’s HiLyte Tower System and uses a transition deck to allow operatives to step safely onto the roof or elevated surface. The overhead frame extends out from the tower, allowing safe access to work areas where conventional towers cannot reach. This is especially suited to rail, transport, utilities and site accommodation applications. Key features include: 360-degree fall protection barriers around the workspace area Controlled transition from tower to roof Secure, stable access for repeated use Designed for flat roofs and elevated workspaces Once on the roof, operatives can work as required, knowing that the most hazardous part of the task, the access and egress, has been properly controlled. The work is carried out on the roof or surface itself , while the Boxing Ring Tower frame provides 360-degree fall protection around the workspace . Applications for the Boxing Ring Tower The BRT delivers a significantly safer method of access for tasks where users must transition from a tower onto a flat work surface. The solution was developed in response to a transport sector requirement for safe roof access on buses, but the same access challenges exist across many industries. The Lyte Boxing Ring Tower is suited to a wide range of real-world applications, including: Buses, coaches and commercial vehicles Trains and rail vehicles Flat roofs and rooftop plant Substations and utilities infrastructure Containers, welfare units and modular buildings The fully enclosed “boxing ring” workspace surrounds the user and provides 360-degree fall protection, significantly reducing risk when transitioning onto elevated structures. Designed and manufactured in the UK The Boxing Ring Tower is designed and manufactured in the UK , ensuring: Consistent quality and durability Clear specifications for professional use Long-term support and availability This makes it suitable not only for end users, but also for hire companies, contractors and facilities teams who need reliable access solutions. Learn more about the Lyte Boxing Ring Tower If you are responsible for working at height on flat roofs or elevated workspaces, and want a safer way to manage access, the Lyte Boxing Ring Tower offers a practical, purpose-built solution. 👉 View the product here: https://www.lyteladders.co.uk/product/lyte-boxing-ring-tower-BRT

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At Lyte Ladders & Towers, we believe sustainability isn’t just about reducing environmental impact, it’s also about strengthening the communities where we live and work. That’s why on Friday 5th September 2025, we were proud to support National Foodbank Day by collecting donations for Swansea Foodbank . Why National Foodbank Day Matters Across the UK, foodbanks play a vital role in supporting families and individuals facing hardship. National Foodbank Day shines a spotlight on this work, raising awareness of the growing demand for foodbank services and encouraging businesses and communities to take action. In Swansea, the foodbank is part of the Trussell Trust network, providing emergency food parcels to those in crisis. Their work goes beyond just food, they also offer advice, support, and practical help to people navigating difficult times. Lyte’s Contribution As a UK manufacturer with deep roots in South Wales, we’re proud to give back to our local community. This year, our team came together to collect donations of non-perishable food, toiletries, and essential household items for Swansea Foodbank. Every contribution helps, from tinned goods and cereals to hygiene products, and we are grateful to our colleagues for showing such generosity. ESG in Action Supporting Swansea Foodbank is part of our wider commitment to Environmental, Social, and Governance (ESG) responsibility. While much of our ESG focus is on reducing environmental impact through initiatives like recycled aluminium and solar energy, we are equally committed to the “social” pillar: Supporting local charities and causes Promoting wellbeing within our workforce Giving back to the community where we manufacture How You Can Help If you’d like to support Swansea Foodbank or learn more about their work, please visit: https://swansea.foodbank.org.uk Together, we can make a difference for those who need it most. National Foodbank Day is a reminder that sustainability is about people as much as it is about products. At Lyte, we’re proud to stand alongside Swansea Foodbank and support the vital role they play in our community. We’d like to thank our team for their generosity and encourage others to consider how they can support foodbanks locally, today and every day.