Tekla is a Building Information Modeling (BIM) software that enables users to create accurate, detailed models of building structures for design, construction, and maintenance purposes. It helps architects, engineers, and construction professionals to visualize and coordinate their projects, collaborate with stakeholders, and reduce errors and costs. Tekla is known for its advanced 3D modeling capabilities, including the ability to generate precise material quantities, schedules, and drawings, and integrate with other software tools and systems. Mastery of Tekla is considered a specialized skill in the construction and engineering industry.