How CAD Software Is Different from Conventional Drawing

By Chris Turn

CAD software is a type of computer-aided design software that enables users to create, modify, and optimize 2D and 3D drawings. CAD software is used by architects, engineers, drafters, and other professionals to create detailed plans and designs for buildings, bridges, and other structures.

Conventional drawing is a method of creating 2D or 3D drawings by hand. This type of drawing is often used by artists and hobbyists to create sketches and illustrations. Conventional drawing can also be used to create technical drawings, such as floor plans, electrical diagrams, and mechanical drawings.

There are six key differences between CAD software and conventional drawing:

  1. CAD software is faster than conventional drawing. CAD software can be used to create drawings in a fraction of the time it would take to create them by hand. This is because CAD software automates many of the tasks involved in creating drawings, such as measuring distances and angles, creating shapes, and adding text.
  2. CAD software is more precise than conventional drawing. CAD software enables users to create drawings with precision measurements. This is because CAD software uses mathematical algorithms to calculate dimensions and positions. As a result, CAD drawings are typically more accurate than hand-drawn drawings.
  3. CAD software is more versatile than conventional drawing. CAD software can be used to create a wide variety of 2D and 3D drawings, including plans, diagrams, illustrations, and models. Conventional drawing is typically limited to two-dimensional sketches and illustrations.
  4. CAD software offers a number of features that are not available with conventional drawing.
    CAD software can be used to generate 3D models and simulations. This enables users to visualize their designs and test them for errors before they are built. CAD software can also be used to create animations and movies.
  5. CAD software is often used in conjunction with other types of software. For example, CAD software is often used with CAD/CAM software to create prototypes of products. CAD software can also be used with simulation software to test the performance of designs.
  6. CAD software is not always necessary. In some cases, conventional drawing may be more appropriate than CAD software. For example, if you are creating a sketch or illustration for a personal project, you may find that conventional drawing is faster and easier than CAD software. Similarly, if you are working on a time-sensitive project, you may not have time to learn how to use CAD software. In these cases, it is best to stick with conventional drawing.


While CAD software has many advantages over conventional drawing, it is important to choose the right tool for the job. In some cases, CAD software may not be necessary or appropriate. In other cases, CAD software can save you a lot of time and effort. It is important to weigh the pros and cons of CAD software before deciding whether or not to use it for your next project.


If you need CAD software or other information technology services, please contact TrinWare. They offer a wide range of CAD software, including AutoCAD, Revit, and SketchUp. Contact them at (720) 488-9800 today to learn more about their services.