Anyway to transfer a bounding box variable to a design table?

I have written a table to size grade footwear components with Solidworks. What I would like to do is use the length and width variable from the bounding box function to set up the model size in the table instead of manually entering the numbers. I have searched everywhere and can't seem to find a way to transfer that info to my design table.

See the attached pics. I want the total bounding box length and the total bounding box width in pic 3 to transfer to the model length cell and model width cell in pic 2. I am not trying to drive the bounding box. I only need the model size variables.

Thanks