Source for 0.050-inch heavy cardstock?

[SolarYellow]

Does anyone know a source for the 0.050-inch thick super heavy cardstock that is used by BMS and others for laser-cut centering rings?

I can find "chip board" on Amazon, but it looks like lower-density, softer stuff. I haven't found anything like what I'm looking for at Hobby Lobby. Doesn't mean it's not lurking there somewhere.

 

[kuririn]

That would be called fiberboard, poster board, mat board, etc.
1/16" is .0625".
I have used this for fins and centering rings.
https://www.amazon.com/gp/product/B07Z8JVNJC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
Arts supply houses should also carry this.

 

[David_Stack]

What about matboard?

https://www.michaels.com/product/un...9dLoUoMsEhERnG4HKKDV21KxOFDX5aNRoCWTwQAvD_BwE

24" x 36" x .055"
4-ply matboard

Ninja'd by Kuririn!

 

[tsmith1315]

I use matboard.

 

[SolarYellow]

That would be called fiberboard, poster board, mat board, etc.
1/16" is .0625".
I have used this for fins and centering rings.
https://www.amazon.com/gp/product/B07Z8JVNJC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
Arts supply houses should also carry this.

Looks like the easy button. Says it's 1.4mm thick, which is 0.055 inch. Thanks!