Introduction Today, most markets are driven by innovation, and the construction market is no exception. New technologies allow building more flexible and efficient designs while also cutting the costs and construction time. Besides, one of the key concerns for many contemporary construction companies is sustainability. Developing technologies and materials that help to reduce environmental damage and are more sustainable is thus an important aspect of innovation in this area, requiring the attention of researchers and manufacturers alike. Cross-laminated timber is a relatively new material that was developed in Europe in the 1990s. Today, CLT is gaining popularity all over the globe, including the United States. CLT offers numerous benefits to construction companies, such as sustainability, cost reduction, and flexibility of design, which is why the CLT market is expected to grow further in the next decade. The present literature review will seek to introduce CLT by explaining its history, development, and the manufacturing process, while also providing information about its key benefits. Definition of Cross-Laminated Timber (CLT) Cross-laminated timber is a construction material consisting of layers of lumber stacked cross-wise (Crespell & Gagnon, 2010). The layers are typically placed at 90 degrees cross-wise, which increases the stability of CLT panels. In most cases, dimensional lumber is used to make CLT; as noted by Crespell and Gagnon (2010), low-grade timber can be used for interior layers, whereas higher-grade timber is required for external layers. In order to attach the layers to one another, the manufacturers use one of several options available. Gluing is the most popular method, which involves the use of glue to attack lumber board layers to one another (Karacabeyli & Douglas, 2013). Other techniques involve nailing or using wooden dowels to attach the layers. Recently, the development of interlocking cross-laminated timber has begun. It is a promising technology that avoids using adhesives or fasteners (Karacabeyli & Douglas, 2013). Every CLT panel consists of at least three layers of lumber boards of variable thickness. According to Karacabeyli and Douglas (2013), “thickness of individual lumber pieces may vary from 5/8 inch to 2.0 inches (16 mm to 51 mm), and the width may vary from about 2.4 inches to 9.5 inches (60 mm to 240 mm)” (p. 3). The length of pieces is determined by the panel size requirements and can be anywhere between 2 to 60 feet. Brief History of CLT The history of CLT begins in Europe in the 1990s. Initially, the material was developed in Switzerland; however, in 1996, Austrian researchers undertook a major joined effort with the construction industry to finalize the idea of Swiss scientists and produce what is now called cross-laminated timber (Crespell & Gagnon, 2010). Although the new material was promising and could be used for building a wide variety of structures, the popularization of CLT took several years. In the early 2000s, construction companies in some European countries, such as Sweden and the Netherlands began using CLT (Crespell & Gagnon, 2010). One of the main motivations behind popularizing CLT were environmental concerns. As part of the green efforts, construct