Tekla Structures 2025 SP1 - Software for structural engineering and construction. Trimble Tekla Structures for Windows, models created with Tekla BIM software carry the accurate, reliable, and detailed information needed for successful Building Information Modeling and construction execution. Welcome smoother workflow to your company with this program and constructible models. Tekla by Trimble Solutions Corporation works with all materials and the most complex structures – you set the limits. Our customers have used Tekla Structures to model stadiums, offshore structures, plants and factories, residential buildings, bridges, and skyscrapers.