The WP21US Short Throw Projector Mount is a purpose-built solution designed to support the professional installation of projectors in educational, commercial, and corporate environments. Engineered for structural compatibility and installation efficiency, the WP21US combines durable construction with precision adjustment capabilities to deliver consistent projection performance. Supplied with the RSAUS RPA Mini Universal Projector Mount and a short throw extension arm, it enables accurate alignment and placement of short throw projectors while also accommodating long throw units when wall-mounted. Its design is suitable for a variety of surface types, including wood and steel studs, concrete, block, and brick walls, making it adaptable to a broad range of installation settings. Integrated features such as micro-level adjustment, a sliding projector carriage, and lateral shift enable precise positioning to support optimal image projection. In-built cable management and aesthetic covers maintain a clean and professional appearance in visible spaces. The WP21US Short Throw Projector Mount includes mounting hardware for wood and concrete surfaces and is TAA compliant, meeting government and institutional requirements. Compatibility with 1.5 inch NPS accessories from the RPA and Elite Series enhances its flexibility across installations. Available in additional lengths of 40 and 56 inches, the WP21US provides a comprehensive mounting solution that meets the practical and structural demands of AV professionals.