I am trying to properly calculate interior casing material separate from door headers, but having some difficulties in doing so. I am looking to put the door headers in the common areas of the home only (only on one side of the door and only on selected doors) so I don’t want to change the size of door top trim and create formulas for casing based on the 2 sizes, otherwise it calculates both sides of the top of door as Header trim. What would be the best way to do this?
I have tried to make an Opening selection option for Door headers and wrote a formula under ‘Group: Openings’ to calculate the one side for the door I selected the option for. This successfully counts the door header material but now I don’t know how to subtract this total from the casing total (as it is still including all headers). With interior casing formula written as a ‘Group: Opening Trim’ formula, I thought to maybe use ‘accumulate’ being that it can put 2 different group type formulas accumulated to one item, but I don’t know how to do this for ‘custom’ formulas, or how to subtract the 2 to do so (as I do not want to add the 2 quantities). Any help would be appreciated.
Thanks,
Dalton Schulz