12 Structural Applications
David R. Bohnhoff, P.E., Professor of Engineering at the University of Wisconsin–Madison, explores the features of post-frame construction and the structural applications best suited for the method.
Any salesperson looking to expand their market must first identify potential opportunities by understanding the unique characteristics of the product. Once defined, markets that benefit from those characteristics become clear.
Post-frame construction offers exceptional flexibility in interior design, allowing for efficient, functional, and visually appealing spaces. Because of this adaptability, virtually any interior finish can be achieved—making it a highly versatile building solution.
To fully capitalize on post-frame construction, the industry must clearly define its unique characteristics and align them with the markets that benefit most.
While this may seem obvious, these opportunities are often underdeveloped. Identifying the right applications begins with understanding what truly sets post-frame apart.
This foundation allows builders, designers, and sales professionals to position post-frame more effectively in a competitive market.
It’s Just a Structural Framing System
A post-frame building system is simply a structural framing system. It does not dictate finishes, insulation, or architectural style—giving designers complete flexibility.
Despite this, zoning boards often associate post-frame construction with lower-cost exterior finishes. In reality, post-frame buildings can support virtually any finish system and achieve high-end architectural results.
Structural systems generally fall into three categories: concrete, steel, and wood. Post-frame is a wood-based system and should be evaluated based on performance—not perception.
Key Building Traits (FACADES)
Designers evaluate framing systems based on these core characteristics:
Functionality • Affordability • Comfort • Aesthetics • Durability • Environmental-Friendliness • Safety
The Uniqueness of the Post-Frame Building System
Expanding market share for post-frame construction depends on clearly identifying and promoting its structural advantages over other systems.
Wood posts serve as the main vertical load-bearing component in all post-frame buildings.
No single roof system is unique to post-frame—allowing adaptability across many building types.
A post-frame building system is defined by wood posts as the primary structural support, with roof systems constructed from nominal 2-inch or engineered lumber components.
These posts may be embedded in the ground, supported by piers, or attached to a foundation. Secondary framing members—such as girts and purlins—complete the system and provide flexibility in both design and load distribution.
In many cases, trusses connect directly to posts, forming large structural frames. When repeated, these create what is often referred to as a “classical” post-frame system.
This system closely mirrors low-rise steel frame construction, sharing similar structural concepts and terminology.
