Drop Downs & Tables

Here attached is my issue. I have 30+ tables all representing different products by width and by height. All products have different dimensions available. When I add a table to the drop down(B2) and ask the user to choose the series they want pricing on, then choose the sizes required(C2&D2), is there a way to draw only the widths and heights available for that table? Or does the drop down for width and height have to incorporate all possible sizes for all available tables?
This becomes confusing to figure out where one series size stops and another begins.
Thanks in advance for any help!!!

this is my formula for finding and matching the tables currently.

=IF(COUNTBLANK(B2:E2)=2,0,INDEX(INDIRECT(B2),MATCH(E2,INDEX(INDIRECT(B2),0,1),0),MATCH(D2,INDEX(INDIRECT(B2),1,0),0)))