Logical check working some of the time

Originally Posted by Sc0tt1e

=IF(COUNTIFS(H2,D2,E2,0.75)>0,SUM(D2*F2),0)

I think that's what you want, put this is I2 and run the formula down to I5 and it will work for each line

Not quite what I'm looking for but still an interesting way of doing it!
The formula you supplied gives me the quantity x size. So if I have two 5.5, it will output 11.
Thanks again for the reply!!