Cross-Laminated Timber: The Future of Building with Wood

The building industry is evolving, and wood is leading the way once again. Cross-laminated timber (CLT) is reshaping how architects, engineers, and builders think about construction, offering a sustainable, durable, and efficient alternative to traditional materials like steel and concrete.

At RoMac Building Supply, we’ve always believed in combining craftsmanship with innovation. CLT represents the next step in that commitment, using the strength and beauty of wood in a way that meets modern demands for performance and sustainability.

What Is Cross-Laminated Timber?

Cross-laminated timber (CLT) is an engineered wood product made by stacking layers of dimensional lumber boards in alternating directions and bonding them together with high-performance structural adhesives. Each layer is typically oriented at a 90-degree angle to the one below it, creating large, solid panels with exceptional strength and rigidity.

The result is a prefabricated panel system that can be used for walls, floors, roofs, and even entire building frames, allowing projects to be assembled with speed, precision, and minimal waste.

How CLT Is Made

The manufacturing of CLT combines traditional wood craftsmanship with precision technology.

1. Selection and Drying of Lumber

CLT starts with kiln-dried boards, typically made from softwood species like spruce, pine, or fir. The boards are selected for consistent quality and moisture content, which ensures stability and reduces the chance of warping or shrinkage once the panels are assembled.

2. Layer Preparation and Adhesive Application

The boards are planed smooth and arranged side-by-side to form a single layer. A layer of strong, moisture-resistant adhesive is applied to the surface before another layer of boards is placed on top, rotated 90 degrees from the previous layer.

3. Pressing the Panels

Once the layers are stacked, the entire assembly is placed in a large hydraulic or vacuum press. The pressure bonds the layers into a single solid panel, creating a structural unit that’s remarkably strong in both directions.

4. CNC Cutting and Finishing

After curing, the massive panels are cut to exact dimensions using computer-controlled machinery. Openings for windows, doors, and utilities are precision-cut before leaving the factory, allowing for quick on-site installation with minimal modification.

5. Quality Control and Grading

Every CLT panel goes through rigorous testing for strength, moisture content, and bonding integrity before it’s approved for shipment. This process ensures consistent performance and code compliance in every project.

This manufacturing approach makes CLT both stronger and more dimensionally stable than traditional lumber while also reducing on-site labor, noise, and waste.

Why Builders Are Turning to CLT

1. Strength and Stability

CLT panels can handle heavy vertical and horizontal loads, making them suitable for everything from single-family homes to mid-rise commercial buildings.

2. Speed of Construction

Prefabricated panels arrive ready to install, allowing crews to assemble structures quickly with fewer workers on-site.

3. Sustainability

Because CLT is made from renewable wood, it captures and stores carbon throughout its lifetime, helping offset emissions from construction.

4. Design Flexibility

CLT supports large, open spaces without interior load-bearing walls and offers a clean, modern aesthetic that celebrates natural wood.

5. Fire and Seismic Performance

Thick CLT panels char on the surface when exposed to fire, which slows burning and preserves structural integrity. Their light weight and stiffness also make them highly resilient in seismic conditions.

CLT in the U.S. Building Market

While CLT has been used in Europe for more than two decades, it’s quickly gaining traction across North America. Updates to the International Building Code now allow for mass timber structures up to 18 stories tall, opening the door for new applications in residential, commercial, and institutional construction.

Developers, architects, and contractors are recognizing that CLT offers a path toward meeting sustainability goals while maintaining design flexibility and structural performance.

What It Means for the Future

Cross-laminated timber is more than just an engineered wood product; it’s a sign of where the construction industry is headed. It combines strength, beauty, and sustainability in one material, bridging the gap between traditional craftsmanship and modern innovation.

At RoMac Building Supply, we’re committed to staying ahead of industry trends and providing our customers with materials and knowledge that make every project stronger, smarter, and more sustainable.

Interested in learning more about innovative building materials?

Visit your local RoMac Building Supply location or contact our team today to discuss how next-generation wood products like CLT can fit into your next project.