Rice husk, a plentiful and renewable agricultural by-product, presents a promising resource for the production of particleboard. This chapter explores into the potential of rice husk as a sustainable alternative for traditional wood-based particleboards, examining its processing methods, properties and practical applications. The discussion begins with an overview of the global production of rice husk and its typical disposal methods, emphasizing the environmental and economic benefits of utilizing this biomass. The key processing techniques are explored, including pre-treatment methods to enhance adhesion, particle size reduction to improve board density and various bonding agents used to optimize the mechanical properties of the finished product. The special attention is given to the environmental impact of these processes, showcasing how rice husk particleboards can contribute to reducing deforestation and waste management issues. The chapter also investigates the physical and mechanical properties of rice husk particleboards such as density, moisture resistance, thermal conductivity and structural strength. Furthermore, the application of rice husk particleboards in various industries is discussed including construction, furniture manufacturing and packaging. In conclusion, the chapter emphasizes the significance of continued research and development in this field to address current challenges and improve the quality and performance of rice husk particleboards. The move towards more sustainable and eco-friendly building materials by this underutilized resource, contributing to a circular economy and reducing the environmental footprint of particleboard production.