Creating a Schedule with Gross and Rentable Areas

[stefan.l]

I’ve been searching for the answer, and can’t seem to find one online or in Revit's help. The solution must be something really simple though. Could someone out there clue me in?

I would like to make a schedule pulling data from both Gross Area Plans and Rentable Area Plans.

Basically looking like this:

Gross Building Area Office Area Office Area/Gross Area (%)
100m2 90m2 90%
100m2 95m2 95%
TOTAL 200m2 185m2 92.5%

Creating a schedule for just the Gross Building Area, or Just the Rentable Area is simple enough, but I can’t figure out how to get them into one schedule in order to formulate the building’s efficiency.

Thanks,

[stefan.l]

A friend of mine told me his technique:
Transcribe the Gross Floor Area into the Rentable Area Schedule in a new created parameter, then you can make formula's from that. It is some work to copy the gross areas, and you have to check them to make sure there aren't errors, but Apparently there is no way to have a schedule pull data from both the Gross area plans and Rentable area plans. (Why is that?)

[Dimitri Harvalias]

Revit won't allow you to pull information from one schedule into another (e.g. grab the total area from your topo schedule and use it to calculate site coverage), neither from different categories or the same category.
Check out the approach outlined in the attached image.
By using schedule keys all you'll need to do is change the 'total' value once and all other calculations will be revised.87263

[stefan.l]

Thank you for the answer and helpful picture. I've only just now had time to look at this... The schedule keys Idea is great!
I don't understand one thing though.
What is the purpose of the YES/NO parameter "Included in GFA"?

[Dimitri Harvalias]

It allows you more flexibility to filter or sort your your schedule on a unique piece of information rather than relying on what you name the area.