Southern Star Transport can be a valuable resource when it comes to purchasing construction materials for subgrade and flex base layers. They have a team of experts who are knowledgeable about the specific requirements and standards for these layers, and can provide guidance on selecting the right materials for the job. Additionally, Southern Star Transport has access to a wide range of high-quality materials, including crushed limestone, gravel, and sand, which are commonly used in subgrade and flex base layers. With their reliable transportation services, they can also ensure that your materials are delivered on time and in the right quantities, making the construction process smoother and more efficient. Overall, Southern Star Transport can be a trusted partner in helping you source and transport the materials needed for your subgrade and flex base layers.