I bought many sticks of 2020 and 2040 – mostly in black ano… and some in silver to save $’s, the latter used where it doesn’t show, or where they worked with my color scheme. 2020 is plenty strong – 2040 is even better where stiffness and torque needs to be tamed… I cannot imagine needing stronger or heavier parts inside a Sprinter van build
I built my entire Sprinter RV interior framing with these extrusions and it went nearly flawlessly – cutting with a carbide tipped powered miter box… only downside was having to find 2020 parts/connectors all over the internet.
I Always mention T-Nutz when I show off my build and the 2020 framing!