Mercer Mass Timber’s BuildSpec Is Free for Specifers — New Tool for CLT Design

Why It Matters

By providing free, real‑time cost and carbon data, BuildSpec reduces uncertainty and accelerates the adoption of mass‑timber solutions, potentially reshaping material choices in mid‑rise projects. This could drive faster, greener construction and open new market opportunities for timber manufacturers.

Key Takeaways

• BuildSpec offers free browser-based CLT feasibility modeling.
• Tool provides live cost, carbon, and quantity comparisons to concrete.
• Aims to move mass‑timber decisions earlier in schematic design.
• Canadian version live; U.S. launch planned for summer 2026.
• Mercer controls ~30% of North America’s structural CLT capacity.

Pulse Analysis

The mass‑timber market is at a tipping point, with over 2,000 timber projects under way in the United States and a growing demand for sustainable building materials. Cross‑laminated timber (CLT) offers a lower‑embodied‑carbon alternative to concrete and steel, but its adoption has been hampered by the lack of early‑stage analytical tools. Designers often default to traditional materials because cost and performance data for timber are fragmented or unavailable until later design phases, slowing the shift toward greener construction.

BuildSpec addresses this gap by delivering a free, browser‑based platform that instantly calculates cost, embodied carbon, and material quantities for CLT and cold‑formed steel configurations. Integrated with Mercer’s existing CLT Toolbox, the tool allows users to prototype hybrid structures and compare them side‑by‑side with concrete and steel baselines. By moving these analyses into schematic design, project teams can identify viable timber solutions sooner, reducing redesign cycles and improving confidence in mass‑timber proposals. The Canadian launch demonstrates immediate market traction, while the upcoming U.S. release aligns with a broader industry push for digitalization and sustainability.

For the construction sector, BuildSpec could accelerate the transition from entrenched concrete‑steel practices to mass‑timber construction, especially in mid‑rise buildings where cost and performance parity are critical. Mercer’s control of roughly 30% of North America’s structural CLT capacity gives it a strategic advantage to shape standards and drive adoption. As municipalities tighten carbon regulations and developers seek faster, cost‑effective pathways to certification, tools like BuildSpec will become essential for competitive bidding and risk mitigation, potentially redefining material selection across the industry.