RINGLOCK SCAFFOLDING | DIFFERENCE BETWEEN TRANSOMS | AT-PAC
August 1, 2019

What Transoms Mean to Your Scaffolding Platforms:
Mid, Ledger to Plank, and Plank to Plank Transoms are underutilized components that work great for creating safe gaps in platforms or closing unwanted gaps in platforms, safe, cleanly and efficiently. This article is designed to highlight the key characteristics of the various Transoms available so that you can be adequately equipped to offer a solution to your customer.
Mid Transoms
Use the Mid Transom to create Plank support anywhere within a bay. Install hooks at each end of the transom over the Ledgers. A horizontal wedge at one end secures the Transom from sliding out of position. The Mid Transom is ideal for creating large openings in a platform.
Ledger to Plank Transoms
The Ledger to Plank Transom method is similar to the Mid Transom method except for the Ledger to Plank Transom method secures to a Ledger at one end and rests on a Ringlock Plank at the other. The Ledger to Plank Transom method is particularly useful when openings are required next to the edge of a bay.
Plank to Plank Transoms
Install the Plank to Plank Transom anywhere along the length of two Ringlock Planks. Use this method to create an opening in the middle of a platform.
Not only can these Transoms be used to create openings for obstructions, but they can also prove useful to create an opening for a Ladder. For more information on our Ringlock system, please refer to local Safety Manual and User Guides.
Need help figuring out which solution is right for your project?
Request a consultation with AT-PAC’s team of scaffolding experts today: Schedule A Consultation
You might also like
AT-PAC Blog

AT-PAC, a world leader in the supply of industrial scaffold products, is proud to announce the renewal of its partnership with Habitat for Humanity . Building on a successful collaboration that began in 2024, AT-PAC is reaffirming its commitment for the second year in a row, contributing $50,000 in funding along with strong volunteer support to work towards the goal of affordable homeownership for all. In 2024, AT-PAC team members contributed to three build events across the country, including the renowned Jimmy & Rosalynn Carter Work Project . This year, AT-PAC will continue its support as a “Roof Raiser” sponsor of the 2025 Carter Work Project. In addition, the company will support a local build in Atlanta, GA, made possible through thoughtful stewardship of resources from the previous year’s initiatives. AT-PAC is honored to be a two-time sponsor of the prestigious Jimmy & Rosalynn Carter Work Project, further solidifying its dedication to Habitat for Humanity's work to build safe and affordable housing around the world. In 2025, the Carter Work Project will launch Austin Habitat for Humanity’s efforts to construct the first fully geothermal neighborhood in the United States. “Habitat for Humanity’s mission continues to inspire us, and it’s a privilege for AT-PAC to be part of it once again,” says Josh Dundon, CEO of AT-PAC. “Our team takes immense pride in contributing both time and resources to help build safe, affordable homes. It’s not just about construction—it’s about creating hope and opportunity for families. I’m proud of our people for showing up once again with heart and purpose to help turn vision into reality for these families.” This collaboration is supported by the Umdasch Group Foundation, the charitable arm of AT-PAC’s parent company, the Umdasch Group . “We are excited to continue our partnership with Habitat for Humanity. It reflects our values and belief in the power of collaboration,” says Wolfgang Litzlbauer, CEO of the Umdasch Group. “Our support, combined with the active involvement of our employees, aligns with our business strategy and mission to create better spaces. Together, we are not only building homes but also making a lasting impact. This partnership is truly meaningful to us, and we look forward to another year of creating positive change together.” *** About Habitat for Humanity Driven by the vision that everyone needs a decent place to live, Habitat for Humanity found its earliest inspirations as a grassroots movement on a community farm in South Georgia. Since its founding in 1976, the housing organization has since grown to become a leading global nonprofit working in local communities across all 50 states in the U.S., Puerto Rico, and more than 70 countries. Families and individuals in need of a hand up partner with Habitat for Humanity to build or improve a place they can call home. Habitat homeowners help build their own homes alongside volunteers and pay an affordable mortgage. Through financial support, volunteering or adding a voice to support affordable housing, everyone can help families achieve the strength, stability and self-reliance they need to build better lives for themselves. Through shelter, we empower. To learn more, visit habitat.org.

This year marks a milestone that fills all of us at AT-PAC with pride: 30 years of delivering innovation, growth, and unwavering commitment to excellence in the scaffolding industry. Since our founding in 1995, we have dedicated ourselves to not just meeting industry standards, but raising them – one project, one partnership, and one breakthrough at a time. From our roots as a regional scaffolding supplier to becoming a global leader with cutting-edge access technologies and strategic partnerships, our journey has been driven by a commitment to safety, reliability, and performance. Every project, every challenge, and every customer relationship has helped shape who we are today. "When I first started at AT-PAC nearly three decades ago, we were a small team with big ambitions. Watching us grow into a global force while staying true to our values has been the most rewarding part of my career," says Jim Davis, AT-PAC's longest tenured-team member. Innovation and Growth Over the past three decades, AT-PAC has expanded its reach to serve customers in more than 20 countries, developed industry-leading products and services, and collaborated with partners around the world to push boundaries in scaffolding solutions. With each new development, our mission has remained the same: to provide smarter, safer, and more efficient solutions that elevate our clients and their work. A Year of Celebration Our 30th anniversary is more than a celebration of the past – it’s a launchpad for the future. Throughout 2025, we’ll be commemorating this milestone with stories from our history, spotlights on our people and projects, and special initiatives that have shaped our journey. "The strong foundation our team has built over the past 30 years, combined with the future now reinforced by our integration with umdasch Industrial Solutions, positions us perfectly to continue scaling our innovations, expanding our reach, and deepening our commitment to our customers and their safety," says Josh Dundon, AT-PAC CEO. As we celebrate “30 Years of Raising the Standard,” we’re honoring not just a company, but a community. To everyone who has been a part of AT-PAC’s 30-year journey: thank you. Your trust and support have made our achievements possible. Here’s to the next chapter – together, we will continue raising the standard.

AT-PAC is proud to announce its official membership with the Access Association of Canada (AAC), a strategic move that reinforces our growing presence and commitment to the Canadian market. As a leading provider of engineered scaffolding solutions, AT-PAC continues to expand its footprint across North America. Joining AAC aligns with our mission to raise the standard of scaffold and access systems while building strong, lasting partnerships across Canada's diverse industries. The Access Association of Canada is a respected, non-profit organization focused on supporting and promoting best practices, safety, and advocacy within the country's scaffold and access sector. Membership offers an opportunity to collaborate with like-minded industry leaders and contribute to the development of national standards and innovation. "This membership is a natural step forward as we continue investing in the Canadian market," says Allan Hazzard, Managing Director of AT-PAC Canada. "We're excited to align with the AAC's values and work alongside other members to elevate the industry. Our goal is to deliver scalable, efficient, and safety-driven solutions that meet the needs of Canadian projects coast to coast. AT-PAC delivers versatile scaffolding systems for industrial, commercial and infrastructure projects, combining technology, engineering, and service to meet today's complex access demands. As part of the AAC community, we look forward to supporting the industry's evolution and showcasing the value we bring to projects across the country.