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Is there a standard for breaking dimension lines?

Question asked by Austin Broeker on Jun 23, 2017
Latest reply on Jun 23, 2017 by Austin Broeker

Rookie question - Is there a standard that dictates which dimension/extension line to break when you have multiple options? So far I've just been operating under the following priority:


1) Choose the option that is the most clear.

2) If #1 is equivalent for all options, choose the option that looks the most aesthetically pleasing.

3) If #1 & #2 are equivalent for all options, break the dimension line that already has another break in it.

4) If #1, #2, & #3 are equivalent for all options, choose the option that is consistent with the majority of the rest of the drawing (i.e. if more horizontal lines are broken than vertical lines in the rest of the drawing, then break the horizontal line).

5) If #1, #2, #3, & #4 are equivalent for all options, then ... flip a coin?


For something similar to this picture, would there be an "officially correct" choice, or is it completely up to drafter preference?


Is there an actual ANSI / ISO standard for this? Or do most of you follow a priority list similar to what I defined above, but as defined by a company standard? If your company doesn't have a defined standard (like mine), then do you just let each drafter choose according to their own preference?


Honestly, most of the time we don't even add dimension line breaks to our drawings at all, but I would like to start changing that because I think it makes drawings look much cleaner.