How do we specify glass railings?

  • By Dan Stachel
  • 06/01/19

Glass design and engineering analysis can be inconsistent across projects. There are several possible reasons for this including the treatment of guardrails as a product rather than an engineered structure, general inexperience with glass as an engineered material, and limited access to glass design software in the U.S.

To ensure you have all the pertinent details, ask suppliers to provide you with a comprehensive proposal, including detailed takeoffs with specific inclusions or exclusions for each railing style within the project scope. These details should include aspects such as finish, linear footage, structural attachment, and makeup. Additionally, request a submittal package that includes 3D renderings based on the architectural and structural specifics for the project.

High-definition surveying (HDS) technology offers tremendous benefits over conventional surveying. It allows for the capture of thousands of critical measurements with precision accuracy, thereby significantly reducing the need for fabrication rework. It also offers a much faster track to the manufacturing process by eliminating the risk of human error and saving weeks of manual field measuring.

Regardless of the method selected for analysis, there are two key principles that should be considered when specifying glass railing: the elastic properties of laminate interlayers (and how they change with temperature and load duration), and understanding that local stresses—e.g., contact materials, support size, and hole size—are critical. In light of these varying factors, it’s recommended that a good finite element program be used to accurately determine glass stresses instead of any manual analysis.

Glass analysis is the most critical aspect of specifying point-supported glass due to life-safety factors. It’s essential that those who have a stake in a project understand this and take appropriate measures to ensure that building code requirements are met.

This article originally appeared in the College Planning & Management June 2019 issue of Spaces4Learning.

About the Author

Dan Stachel is vice president of Trex Commercial Products (www.trexcommercial.com).

Featured

  • Designing Learning Spaces that Support Student Mental Health and Wellness

    In today’s education landscape, schools are more than just centers for learning; they are integral to the holistic development and well-being of students. The global pandemic underscored the importance of addressing mental health in schools, as productivity dropped, stress levels rose and students faced challenges managing emotions.

  • Spaces4Learning Announces Winners of 2025 Product Awards

    Spaces4Learning has just announced the winners of the 2025 Product Awards! The award program recognizes innovation and excellence in products that enhance learning environments in K–12 schools and institutions of higher education.

  • Kraus-Anderson Completes Improvements at Minnesota Middle, High Schools

    Construction management, real estate, and risk management firm Kraus-Anderson recently announced that it has finished two K–12 renovation projects in Minnesota, according to a news release.

  • Empowering People Through Smart, Sustainable Campuses

    Sustainability is facing increasing scrutiny, with some questioning its costs and priorities. Yet for universities, it remains an essential driver of resilience, operational efficiency and long-term competitiveness. At the same time, there is a growing recognition that sustainable transformation is not just about reducing energy consumption and emissions to comply with tightening regulations ‒ it’s about creating vibrant, comfortable environments where people can thrive, innovate and connect. For university leadership, this is a complex balancing act, with rising energy costs and limited budgets only adding to the challenge.