Dock Designer is described as 'Customized to the specific building rules of dock building companies, Dock Designer enables visual design in 2D where you can see your dock design in 3D and have instant access to accurate estimates, parts lists, blueprints, and much more' and is an app. There are more than 50 alternatives to Dock Designer for a variety of platforms, including Windows, Mac, Linux, Web-based and iPad apps. The best Dock Designer alternative is FreeCAD, which is both free and Open Source. Other great apps like Dock Designer are SketchUp, LibreCAD, Autodesk AutoCAD and SOLIDWORKS.