Hi,
You have now varioussolutions provided by Deepak Sir.
I just want to add this (as per your question title)
IF(OR can not be written like this:
=IF(C28=OR("20'","20'H"),1580,2040)
you were near but you to do something like:
=IF(OR(C28={"20'","20'H"}),1580,2040)
Regards,
Thanks again