Download StruCad 15.5 from our website for free. The program lies within Photo & Graphics Tools, more precisely 3D Design. This program was originally produced by AceCad Software Ltd.
From the developer:
StruCad is a 3D structural steel detailing and information management system, with rapid automatic fabrication shop drawing and CNC production delivery.
You may want to check out more software, such as Jana2006, StrucCope or ConSteel, which might be related to StruCad.