HS-0001 Material Thickness?

I need to know what the thickness of HS-0001 is please.
I'm going to complete the SB but because of a pre-existing condition, going to have to add a doubler to HS-710 (per Van's), which means I'll be riveting 4 pieces of metal instead of 3. Suspect this tail will be pretty strong after all this!
Thanks!

What is the question?

Hi Charles,
Sorry, I guess the title of the post was too vague. I need to know what the thickness of HS-0001 is.
Thanks.
Allen

According to Van's, it's .063".