Possible to have 2 dropdown menus dependent on the same reference table?

[kelseygueldalewis]

I'm trying to develop a table where when you select one Insulation Type from a dropdown menu, you are shown the possible options for start and end values for that insulation type. I know that you can do cascading dropdowns where one references, the other, which references another. But I need both the start and end options to populate based on the same reference - Insulation Type that's selected. I've thought about doing a workaround where the End dropdowns could reference the Start choices, but there are repeats in the Start Values so that's not possible.

I highlighted in yellow the cells where I would like to see dropdowns that indicate the possible end value options based on the Insulation Type. Any help is appreciated.

[TMS]

Where you have highlighted the cells where you want a formula in yellow, what would your expected results be?

Is this table going to grow? Are there more insulation types and/or pairs of start/end values?

[Croweater]

You could extend the idea you have already used, by naming the End dropdowns as you have done for the start (eg. "AtticEnd").

Then have your List source accordingly eg. =INDIRECT(A10&"End")

Drag that down for as many rows as you need.