DBUPrep is an online exam preparation platform designed to help builders in Victoria prepare confidently for the Domestic Builder Unlimited (DB-U) registration assessment. With 150+ practice questions, chapter-based preparation, timed mock exams, instant feedback, and detailed explanations, DBUPrep covers key exam areas including site management, building legislation, contracts, bracing, roof trusses, waterproofing, pools, NCC 2022, slabs, sub-floors, and timber framing.