Multi category schedule, missing parameters

[revitworkbench]

So I went to create a multi-category schedule, and one of the parameters I need is length (as in ductwork or pipes) but it is not in the list of available fields in my multicategory schedule. Is there a way to add it in, or a work around? thanks!

[CoreyDaun]

Yes, the Multi-Category Schedules are weaker. There are so few parameters that are common amongst all of the Categories. There's now way to add the Duct and Pipe Length to these schedules. What information are you looking to have in your schedule?

[revitworkbench]

I need to have length of duct and pipes, so Ill just have to make a bunch of schedules. Do you know what it means when the following error message is occuring "the following is not a valid schedule field: Outter Surface Area" It is refeering to a Calculated Value Parameter that I put in my schedule. I have many in fact. But when I try to add these two fields together, I get this error. Any ideas? The calculated values work fine. They are on the schedule, I only get this error when I try to add the two together. thanks

[CoreyDaun]

What are the exact names of the Parameters that are giving you that error? If they've got a formulaic symbol in their name (i.e. minus, parentheses, asterisk) then it will be treated as such by Revit. So, for example, say you have:

Parameter Name 1 = Total_Length

Parameter Name 2 = Option - Type A

...and you wanted to add these values together with a formula: Total_Length + Option - Type A

Because of the "-" in the Parameter name, Revit thinks that "Option" and "Type A" are two separate parameter names.

Total_Length [plus] Option [minus] Type A      ...hence the error.

Edit: I typically use the "En Dash" character in place of the typical dash for Parameter Names. Alt+0150 = "–"

[revitworkbench]

The Exact names are Inner Surface Area (ft) and Outter Surface Area (ft) is the parenthesis throwing it off?

[CoreyDaun]

Exactly. If you want to keep the Parenthesis in the name, use the "Ornate Parenthesis" found in the Character Map for Arial. That's what I do.

[CoreyDaun · Accepted solution]

The other option you have (specifically in schedules) is to rename the Calculated Value to omit the "(ft)" and then alter the "Heading:" for that field (Formatting tab) and add the "(ft)" there.

[rishabh.0.0]

Hi,

I am facing a similar problem. 

Trying to create a multi category schedule of horizontal and vertical framing members. 

If i export schedules individually i.e. horizontal schedule and vertical schedule, they come out fine. 

If i create a multi category schedule, I lose the lengths of the horizontal member (The ones marked as top and bottom in comments), they are grouped together but they are all different lengths. 

Image attached. Any ideas?

 Multi Category scheduleOnly horizontal framing schedule