What is cross-laminated timber (CLT)?

Cross-Laminated Timber (CLT) is an engineered wood panel made by gluing multiple layers of solid lumber boards at perpendicular (90°) angles to each other. This cross-graining technique produces large, strong, dimensionally stable structural panels used for floors, walls, roofs, and staircases in multi-storey timber buildings.

How CLT Is Made

Typically 3, 5, 7, or 9 layers of kiln-dried dimension lumber are arranged with alternating grain directions and bonded using structural adhesives under pressure. The panels are then precision-cut by CNC machines to exact dimensions, with openings for windows, doors, and services factory-cut for on-site speed.

Structural Properties of CLT

  • High strength in both directions (unlike regular timber, which is strong only along the grain)
  • Excellent load-bearing capacity for floors and walls
  • Dimensional stability minimal warping, shrinkage, or swelling
  • Predictable, ductile fire performance chars slowly and uniformly
  • Good acoustic and thermal mass performance

Cross-Laminated Timber (CLT) is transforming what is possible with wood in construction, enabling multi-storey buildings that are strong, safe, fast to build, and dramatically lower in carbon than concrete and steel structures. As India's construction sector seeks to reduce its environmental footprint, CLT represents a high-value, future-facing material worth serious consideration by forward-thinking developers and architects.

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