Two items with the same mark

[mwoodsonUUZVA]

My Project Manager wants two different items to have the same mark. Is there a way for me to schedule these items without "itemizing every instance"?

[RobDraw]

Based on the limited criteria, the answer is yes. That's the easy part. Your requirements for the rest of the schedule will determine if you can get what you want. 

[mwoodsonUUZVA]

That's what I figured. Back to the drawing board! Thanks for responding.

[ToanDN · Accepted solution]

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@mwoodsonUUZVA wrote:

My Project Manager wants two different items to have the same mark. Is there a way for me to schedule these items without "itemizing every instance"?

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Of course.  Sort your schedule by another field instead of Mark.  Also, you might want to look into Type Mark.

[mwoodsonUUZVA]

I will try sorting by another parameter. That actually makes the most sense, thank you!

[RobDraw]

You're welcome. 

[RobDraw]

If you're already sorting by Mark and this is the first time you're dealing with duplicate marks, what difference does it make if you itemize every instance?

[mwoodsonUUZVA]

I have duplicate marks but they're all the same piece of equipment. Example: Item 120 is wire shelving, and I have about 50 in my model. Item 313 is a combi oven and a water filter. If I itemize my schedule, all 50 wire shelves will show up, and I don't want that. The problem I'm having is the quantity is counting both instances of the mark. I am having a hard time explaining this, and I apologize if this is confusing.

[RobDraw]

Okay, I get it now. 

Maybe you should make both items into one so that you can schedule them as a single line item.

[RobDraw]

You would be better off using the type mark for equipment. The mark value is an instance parameter. 

[iainsavage]

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@mwoodsonUUZVA  schrieb:

Item 120 is wire shelving, and I have about 50 in my model. Item 313 is a combi oven and a water filter. 

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That is the perfect example of when to use Type Mark instead of Mark.

I don't think your project manager understands what they are asking for here and maybe this is an opportunity for you to educate them.

Although it can be ignored there's probably a very good reason why Revit warns you every time that you create items with duplicate Mark values

[HVAC-Novice]

it is really bad practice to use the same mark for 2 items. Especially if it is the same type of item and in the same schedule. 

Mark would be used if you need to identify each specific item. Like there is a difference and they are not exchangeable. In your case of shelves, I assume all shelves of the same size and type are the same and could swapped around, type-mark seems more appropriate.  

One example, for regulars isolation valves I use type-mark, since each 2"valve is the same and they could be swapped. For control valves, I use mark, since a controls contractor needs to address each individually and even if they are the very same type of control valve, are unique. 

So if each shelf has a specific color, and needs to be a ta specific location, use mark and distinct names. If they are all the same, use type-mark.