Cross-laminated timberД¬ross-laminated timber or вЂCLTвЂ™ is the same as glulam except that it differs in the arrangement of wood pieces. It is used as the main material in various typologies of buildings including industrial structures, sports halls, and commercial buildings, as well as in bridges. As glulam is made by joining the pieces of wood, it can be manufactured in a variety of sizes and shapes and span large areas as a single piece. The pieces of glued laminated timber are generally used as a structural frame of the building, i.e., as beams and columns, and also for domes and vaults. This can result in shrinkage or expansion of length like solid wood. These pieces are oriented in one direction which appears as a solid piece of wood. Glued laminated timber or вЂglulamвЂ™ is made of multiple layers of solid wood lumbers glued to each other with adhesives to form a single piece. Laminated timbers are manufactured in two ways: The laminated pieces are connected using bolts or steel dowels and steel plates during construction. The pieces are then hydraulically pressed to achieve the required strength. The lumbers are selected and arranged considering the grains and defects of the wood to attain maximum structural integrity. The lumber is then stacked one above the other to form a single piece and glued to each other with an environmentally вЂ“ friendly adhesive. The wood is trimmed, smoothed, and is kiln-dried to reduce the moisture content to an extent that it does not allow for cracking and change in dimensions. Laminated timbers are used all over the world and majorly in the European countries and are produced from hardwood. However, the timber obtained from wood that had a bad reputation for being ignitable has given rise to an alternative material known as Laminated timbers.

Owing to the negative impacts of the use of concrete and steel on the environment, the focus has turned to a more sustainable material.

But since the period of industrialization, concrete and steel have taken over the tree-wood as building materials. Trees have been used as building materials since the beginning of humanity and construction.

Laminated steel used intools