When building a deck, the choice of framing materials plays a critical role in determining the structure’s longevity, performance, and aesthetics. While pressure-treated lumber has been the go-to material for decades, engineered Laminated Veneer Lumber (LVL) deck beams are emerging as a superior alternative for many applications.
Below, we’ll explore the key benefits of using engineered LVL deck beams and why they are worth considering for your next deck project.
What is LVL?
Laminated Veneer Lumber (LVL) is an engineered wood product made by bonding thin layers of wood veneers together with high-strength adhesives under heat and pressure. The result is a dense, strong, and uniform material specifically designed for structural applications.
1. Superior Strength and Load Capacity
One of the biggest advantages of LVL deck beams is their exceptional strength-to-weight ratio. Engineered LVL beams are designed to handle heavier loads than traditional pressure-treated lumber of the same size. This makes them ideal for large decks, elevated decks, or decks designed to support hot tubs, pergolas, or heavy furniture.
Key Points:
- Uniform strength throughout the beam due to engineered design.
- Resistant to bowing, twisting, or sagging over time, even under heavy loads.
2. Dimensional Stability
Pressure-treated lumber can shrink, twist, or warp as it dries out, leading to uneven surfaces, squeaky floors, and structural issues. LVL beams, on the other hand, are manufactured to precise specifications, ensuring dimensional stability over the lifespan of the deck.
Key Points:
- Minimal movement due to changes in temperature and humidity.
- Reduces the likelihood of gaps or unevenness in the deck structure.
3. Consistency and Quality
Unlike pressure-treated wood, which can vary in quality depending on the species, treatment process, and grade, LVL beams offer consistent quality. Each beam is engineered to meet strict performance standards, ensuring predictable results during construction.
Key Points:
- No knots, splits, or weak spots like in natural wood.
- Easier to cut and install with precision.
4. Longevity and Durability
Pressure-treated wood is susceptible to decay, rot, and insect damage over time, especially in high-moisture environments. LVL beams, when properly treated, offer superior resistance to these issues.
Key Points:
- LVL beams can be treated for outdoor use, extending their lifespan.
- They resist the environmental stresses that often lead to the failure of pressure-treated wood.
5. Sustainability
LVL beams are made from fast-growing, renewable wood species, utilizing more of the tree than traditional lumber. This makes them a more sustainable choice for environmentally-conscious builders.
Key Points:
- Reduces waste compared to pressure-treated wood.
- Often certified as an environmentally-friendly product.
6. Easier Installation
Due to their manufacturing process engineered LVL deck beams are more straight and uniform compared to standard pressure treated lumber. This makes them easier to install, reducing labor time and costs. Most skilled deck builders need to plane and flatten all deck joists when using standard pressure treated lumber otherwise the deck boards won’t lay flat.
Key Points:
- Easier to install on the job site.
- Can span greater distances than pressure-treated wood, reducing the number of posts and simplifying the design.
7. Aesthetics
Because LVL beams are manufactured with a smooth, uniform surface, they offer a cleaner look than pressure-treated beams. This is especially advantageous for exposed beams in modern deck designs where appearance matters.
Key Points:
- Can be painted or stained for a custom look.
- Eliminates the rough, uneven appearance of pressure-treated wood.
8. Long-Term Value
While LVL beams may have a higher upfront cost than pressure-treated wood, their durability, low maintenance, and superior performance can save money over the long term. Reduced maintenance, fewer repairs, and a longer lifespan make LVL beams a cost-effective choice for serious deck builders.
9. Warranty
PWT Treated LVL carries a 25-year limited warranty for protection against damage caused by fungal rot, decay, and wood-destroying insects, including Formosan termites.
Conclusion
Engineered LVL deck beams are a smart upgrade from standard pressure-treated framing. Their superior strength, dimensional stability, and resistance to environmental damage make them an excellent choice for creating a deck that stands the test of time. Whether you’re building a small backyard retreat or a large, elevated deck, LVL beams offer unmatched performance and value.
By investing in LVL deck beams, you’re not only improving the durability and safety of your deck but also enhancing its overall aesthetic and reducing long-term maintenance concerns. For homeowners and builders alike, LVL is the future of high-performance deck framing.