EN 16351 : Timber structures - Cross laminated timber - Requirements.

This standard specifies the performance requirements for cross-laminated timber intended for buildings and bridges:

- Type 1: straight or curved, made exclusively from timber without large finger joints;

- Type 2: straight, made exclusively from timber with large finger joints;

- Type 3: straight, combining timber and wood-based panels, without large finger joints.

It applies to products manufactured in accordance with its provisions for service classes 1 or 2 of EN 1995-1-1, using softwood or poplar, including mixed species. Permitted adhesives are phenolic, aminoplastic, one-component moisture-curing polyurethane, or Type I isocyanate-based emulsion polymer adhesives.

The products comprise at least three orthogonally bonded layers, with a total thickness of no more than 500 mm, lamella widths from 40 to 300 mm, and timber-layer thicknesses from 6 to 47 mm.