Dimensioning Walls and Sprinklers in AutoCAD: A Step-by-Step Guide

Troubleshooting Dimensioning Errors in AutoCAD: Tips for Accurate Annotations

Navigate the complexities of dimensioning with this professional guide that addresses common errors and provides clear solutions. This article is an invaluable resource for those learning to annotate and dimension precisely and accurately in complex architectural scenarios.

Key Insights

  • The article provides solutions to common mistakes that occur during dimensioning, emphasizing the importance of accuracy and precision.
  • It discusses sprinkler placement and annotation, highlighting the need to understand rules and regulations, such as the small room rule and light hazard specifications.
  • The article also guides the reader through the process of using dimensioning tools effectively, demonstrating techniques such as typing 'DI' and using the 'tab' key for optimal results.

Note: These materials offer prospective students a preview of how our classes are structured. Students enrolled in this course will receive access to the full set of materials, including video lectures, project-based assignments, and instructor feedback.

Now, unfortunately, I had a whole dimension string, and this sometimes happens—I wanted to show you that while you're dimensioning, you might find a mistake here or there. So let's go back and try that one more time. Type DI and press TAB to find the wall.

Let’s go down this row of sprinklers. Okay. In some of these areas, they're quite typical.

So what we can do is just dimension one. Then go to Annotate > Text, and we’ll add "TYP." to indicate it's typical. These classrooms we don’t have to worry about because they have ceiling tiles and are all light hazard.

Let’s move on and continue. Since we’ve already called out that these are 10 feet apart, we’re just going to continue this string of sprinklers here. Type DI and ensure we’re going in the correct direction. Try not to select anything else—you may have to move around a bit.

There we go. Go ahead and type DI again, and hit TAB. Do that one more time—type DI and press TAB.

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Okay. We have these restroom sprinklers. Sometimes you have to find a good spot, so you don’t create an extra dimension you don’t want.

You might think this is overspaced. There are some rules, like the small room rule, and if it’s light hazard, we can be up to 9 feet off of one wall. We won’t get into that too much in this course, but for the purposes of our annotations and the project, we’ll leave the sprinkler as is.

photo of Derek Cutsinger

Derek Cutsinger

BIM Instructor/Coordinator

Derek’s background is in both education and MEP. He earned his BA in Music Education from San Diego State University and is also a TEFL certified English language instructor. In addition to educational roles, he is also an experienced fire protection design engineer and has extensive knowledge in many programs and processes used in AEC industries. He brings his unique and eclectic skillset to VDCI as their Curriculum Coordinator. In his free time he can be found weightlifting in his garage, hanging out with his wife and pug, or painting and drawing in his studio.

  • BA Music Education – San Diego State University
  • MA Applied Linguistics (in process) – San Diego State University
  • TEFL Certified English Language Instructor
  • NICET 1 Certification
More articles by Derek Cutsinger

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