Free and open source pattern design software
conducteö - logiciel de calcul des ponts thermiques linéiques
A 2D CAD application for civil engineering , built with Free Pascal
CloudCompare main repository
Static and Dynamic Structural Analysis of 2D and 3D frames.
Библиотека УГО компонентов для Kicad
CAD 2D for Land Surveying and Civil
Open Source CAD