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What is DWG? - Back to Basics

By Rose Barfield 3 min December 7, 2020
What is DWG - Back to Basics

If you're new to CAD, or even if you've been using it a little while, you might have heard the term "DWG" but don't know what it really means. Don't panic! In this article, you'll learn the answer to all your DWG questions!

What is DWG?

DWG is a file type used to store CAD drawings.

What is DWG - Back to Basics- dwg drawing civil design

Example of a DWG drawing, open in BricsCAD.

What is a DWG file?

A DWG file is one of the most frequently used CAD file types on the planet. It is the native file type for BricsCAD® and many other and other OpenDesign Alliance applications. This makes it highly compatible.

DWG is a binary file type, originally created by Autodesk®, but was reverse engineered by the OpenDesign Alliance. After a fierce court battle, the OpenDesign alliance were allowed to release their work, allowing CAD users everywhere to open DWG files, without having to pay for expensive software packages.

What opens DWG files?

What is DWG - Back to Basics- shape-e1565613060343

Example of DWG drawing opened in BricsCAD® Shape, the free software program from BricsCAD®.

There are lots of ways to open a DWG file, some of them are even free! You can use BricsCAD®, even BricsCAD® Shape (the free CAD software package from Bricsys®). With a software package like BricsCAD®, you can import, edit and create DWG files, and even export them to another file format.

What does DWG stand for?

The letters DWG doesn't stand for anything. It's actually a play on the word DraWinG.

Does DWG mean 2D?

DWG files can work in 2D and 3D! Many people wrongly assume that because DWG means "DraWinG", that DWG files can only be in 2D. Whilst this might have been true 30 years ago, it's certainly not anymore!

What is DWG - Back to Basics- PointcloudProjectsection-screenshot

Example of DWG file containing 2D and 3D geometry, point cloud data and annotiation, open in BricsCAD®.

A DWG file can contain a lot of different types of information: images, 2D and 3D geometry, BIM data, point clouds and more.

What is a dxf?

DXF files were created as the "open" format for DWG.

Learn more about DXF files →

Did you know?

That .bak (drawing backup), .dws (drawing standards), .dwt (drawing template) and .sv$ (temporary automatic save) files are also different types of DWG file?

More Back to Basics:

Rose Barfield

by Rose Barfield - CAD User Experience & Interface Design Specialist

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Rose is responsible for taking user feedback and improving the BricsCAD product. Before coming to BricsCAD, she was a CAD user and worked in the Automotive, Aerospace, and Defense industries as a Technical Illustrator. She loves finding out how things work, taking them apart, and (hopefully) putting them back together again.

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