When building a high-quality post-frame structure—whether it’s a home, shop, ag building, or barndominium—the materials you choose matter. One of the most overlooked yet critical decisions is how your columns are made. These vertical supports bear the weight of your entire building, and over time, the wrong choice can lead to twisting, settling, or even structural failure.
At Structural Buildings, we use finger joint glue-laminated columns, like those made by TimberTech, because they offer superior strength, consistency, and longevity compared to more traditional methods like nail-laminated (nail lam) or butt-spliced columns.
What’s the Difference?
Finger Joint Glue-Laminated (e.g., TimberTech):
Multiple wood laminations are joined end-to-end using interlocking “finger” joints and bonded with high-performance adhesives, forming a continuous, solid column that is straight and uniform.
Nail-Laminated (Nail Lam):
Boards are stacked and nailed together side-by-side. No adhesive is used. Strength depends on the number of fasteners and the skill of the assembler.
Butt Splice:
Shorter pieces of lumber are mechanically fastened together (usually with metal plates or bolts) to reach the desired column length. These joints are weak points in the column.
Why Finger Joint Glue-Lam Columns Are Better
Stronger, Uniform Structure
Glue-laminated columns are engineered for consistent strength along the entire length—no weak joints, no gaps, no guesswork. In comparison, nail-lam and butt splice columns rely on fasteners that can loosen over time or fail under stress.
Straighter Builds, Less Warping
Precision manufacturing and the use of kiln-dried lumber means these columns stay straighter during construction and over the years. Nail-lam and butt splice options are more prone to bowing, twisting, or shrinking—leading to uneven walls and finish issues.
Moisture and Rot Resistance
The adhesive used in finger joint columns seals joints better than nails or metal fasteners, reducing points where moisture can seep in. This helps extend the life of your structure, especially at the critical ground-contact zone.
Cleaner Appearance
Glue-laminated columns offer a cleaner, more professional look—ideal when interiors are exposed. No nails popping, no uneven overlaps, and no clunky butt joints.
Time-Saving Installation
These columns arrive pre-engineered, straight, and ready to install. Nail lam columns require on-site assembly and can vary in quality. Butt splice joints often slow things down and require extra bracing to be reliable.
Long-Term Value You Can Count On
Finger joint glue-laminated columns aren’t just a “nice to have”—they’re a smart investment in the structural integrity and long-term performance of your building. While nail-lam and butt splice columns may save a few bucks up front, they can’t compete with the durability, precision, and peace of mind that comes with engineered laminated columns.
At Structural Buildings, we believe in building it right the first time—so you don’t have to worry later.
Have questions about which materials are right for your build? Our team is here to walk you through it—because when it comes to your project, quality always comes first.
