How do you create a "Sloped Area with Depth" area takeoff? For instance, a sloped concrete slab where you need to calculate the increased area and volume associated with the slope?
I would use the same formula as I do for roofing sheets. Multiply the M2 area by the fall (pitch) and then multiply by the thickness of the slab.

Hey Adam, currently, we don't have a "Sloped Area with Depth". This is mostly because we wanted to avoid confusion about whether we were calculating the area/volume inside of an attic/sloped roof, or, in this case, a sloped area for concrete.
For now, I would recommend using the measurement type "Sloped Area" and build a formula to calculate the volume.
We are open to feedback on adding these additional measurement types, etc.
Thanks Lorin! I'll add my feedback to Feature Request. I am not a fan of the current zzTakeoff slope workflow.