Tekla 21.1 System Requirements //free\\ Guide
Below are the official minimum, recommended, and optimal requirements for Tekla Structures 21.1.
| Component | Minimum | Recommended | |-----------|---------|--------------| | | Windows 7 SP1 (64‑bit), Windows 8/8.1, Windows 10 | Windows 10 64‑bit | | CPU | Intel Core i3 / AMD equivalent | Intel Core i7 (4+ cores) | | RAM | 4 GB | 16 GB or more | | GPU | DirectX 9‑compatible, 512 MB VRAM | NVIDIA Quadro / GeForce GTX with 2+ GB VRAM | | Storage | 2 GB free HDD | SSD, 4+ GB free | | Screen resolution | 1280×1024 | 1920×1080 or higher | | .NET Framework | 4.6.1 | 4.6.1+ | | Other | Microsoft Excel (for reports), Internet Explorer 9+ | Excel 2013/2016, IE 11 | tekla 21.1 system requirements
| Component | Recommendation | | :--- | :--- | | | Windows 10 64-bit (Build 21H2) — Avoid Win 11 due to OpenGL quirks | | CPU | Intel Core i9-10900K (5.3 GHz boost) or AMD Ryzen 9 5900X | | RAM | 32 GB (Minimum) — 64 GB for concrete/rebar heavy models | | GPU | NVIDIA RTX 3070 (8 GB VRAM) or Quadro RTX 4000 | | Storage | 1 TB NVMe SSD (Samsung 980 Pro / WD Black) | | Page File | Manually set to 32 GB (on the SSD) | Below are the official minimum, recommended, and optimal
While Tekla Structures 21.1 is no longer current, it remains functional on Windows 10 with a dedicated GPU, fast single-core CPU performance, and ample RAM. For new projects, upgrading to Tekla 2023+ is strongly recommended for better performance, security, and BIM interoperability. Tekla Structures 21
Tekla Structures 21.1 is designed for older 64-bit Windows environments. It is not officially supported on Windows 11.