When building a barndominium, one of the earliest and most important decisions you’ll make is choosing between metal trusses and wood trusses. This choice affects not only the overall structure but also the interior layout, ceiling height, long-term durability, and the total cost of your build.
At Watson Metals, we supply pre-fabricated trusses that are engineered for strength, consistency, and performance especially suited for barndominiums in Tennessee and Kentucky. Here’s a closer look at how metal trusses compare to wood for barndominium construction.
Strength and Span
Wood trusses have been used in residential construction for decades and are reliable for many types of framing. However, they often require additional interior supports when covering large spans, which can limit your ability to create open floor plans. Wood is also susceptible to issues like rot, insect damage, and warping, especially in humid or variable climates.
Metal trusses, on the other hand, offer a superior strength-to-weight ratio. They are designed to span longer distances without interior posts, making them ideal for the wide-open spaces and vaulted ceilings common in barndominium designs. If you’re aiming for an open-concept layout, metal gives you the structural freedom to make it happen.
Material Consistency
Wood is a natural material, which means it comes with natural inconsistencies. Differences in grain, knots, and moisture content can lead to shrinkage, bowing, or splitting over time. Metal trusses are manufactured in a controlled environment, ensuring each piece is consistent, uniform, and predictable. This kind of precision makes the installation process more efficient and results in a stronger, straighter structure over time.
Cost and Labor
Wood trusses often come with a lower upfront cost and are widely available, which can be appealing for traditional builders or budget-conscious projects. Most framing crews are also familiar with working in wood.
Metal trusses carry a slightly higher material cost and are heavier and more difficult to install. This can increase labor time and increase the cost difference, particularly for larger structures or projects with tight timelines.
For DIY builders or contractors already comfortable working with wood, the efficiency gains can be significant.
Resistance to Fire, Pests, and Moisture
One of the major advantages of metal trusses is their resistance to fire, insects, and moisture-related damage. Wood trusses, even when treated, are still combustible and prone to issues like termites and rot, especially in southern climates with high humidity. Metal doesn’t burn, doesn’t attract pests, and doesn’t mold, making it the more resilient option in the long run.
Maintenance and Longevity
Wood trusses require periodic inspections and maintenance over the years. Homeowners may need to monitor for sagging, water damage, or insect activity. While well-maintained wood trusses can last for decades, they often come with more upkeep.
In contrast, metal trusses are designed for longevity with minimal maintenance. Once installed, they provide reliable structural support for the lifetime of the building without the need for regular treatment or repair.
So Which Is Better?
While both wood and metal trusses have their place in construction, metal trusses are often the better choice for barndominiums. Their strength, consistency, and resistance to environmental damage make them ideal for modern layouts that favor open spaces, tall ceilings, and low-maintenance living. They also offer long-term value by reducing maintenance and increasing structural reliability. However, for cost concerns or for those going for a more natural looking truss, wood trusses offer greater bang for the buck.
At Watson Metals, we manufacture and supply high-quality pre-fabricated trusses specifically designed for barndominiums, custom homes, and post-frame buildings. Whether you’re working with a professional builder or taking the DIY route, our team is here to help you choose the right truss system for your project.
Contact us today or visit one of our locations in Tennessee or Kentucky to learn more about our trusses and get a quote for your barndominium build. When it comes to strength and performance, Watson Metals helps you build with confidence.
