A complete overview of construction contracts in Queensland, Australia, examining their fundamental principles and practical administration. They cover various contract types, methods for calculating contract price, and the roles and responsibilities of key parties like Principals, Contractors, and Superintendents. We also discuss crucial aspects such as managing variations and delays, handling progress and final payments under contractual and statutory frameworks, and addressing defective work. Furthermore, we highlight risk allocation, procurement methods including alliances and public-private partnerships, and the significance of statutory trusts and subcontractors' charges within the Queensland Building Industry Fairness Act.