In understanding the properties of Cross laminated timber (CLT) it is first important to understand the makeup of the raw material itself. Timber is an orthotropic material, meaning its material properties change when measured from different directions. The simplest way to visualise the formation of wooden material is via a typical drinking straw, or a group of straws. Quite soft in two planes, but strong in the direction of the straws. When viewed at a microscopic level timber does indeed resemble a collection of straws. It is this cellular structure that gives the material both its strength and its weakness. CLT is a great timber product for supporting uniform loadings, for example, roofs, office floors or residential floors. The material will however struggle with large concentrated loads such as transfer loads. Maximising the off-site production process will lead to a smoother construction process.