Research in the USA has led to the production and publication of a new guide –
Part of the family of mass timber products, Nail-laminated timber (NLT) is mechanically laminated to create a solid structural element. NLT is created by placing dimension lumber (nominal 2x, 3x, or 4x thickness and 4 in. to 12 in. width) on edge and fastening the individual laminations together with nails. Typically used as floors and roofs, NLT can also be used for walls, elevator shafts, and stair shafts. Plywood/OSB added to one face can provide in-plane shear capacity, allowing the product to be used as a shear wall or diaphragm.
NLT is an old method of construction with a range of modern opportunity to create compelling architecture. Used in many historic applications, it is enjoying renewed interest as we rediscover the many benefits of mass timber and advance wood technology and manufacturing. Lightweight, low-carbon, and very compatible with high-performance buildings, innovation with NLT is inspiring new opportunities for large- and small-scale buildings across sectors and around the world.