Which kind of wood need to be stabilized?

[Eriksen]

If I have some very hard and tight beech and burly birch wood that have been dried for many years, do I then need to stabilize them in order to use them as knife handle scales?

 

[weo]

Don't forget about using the custom search sticky.
Here's the first 3 results for a search of "what woods need to be stabilized"
https://www.bladeforums.com/threads/which-woods-would-you-stabilize.647784/
https://www.bladeforums.com/threads/which-woods-do-not-need-to-be-stabilized.522799/
https://www.bladeforums.com/threads/should-all-knife-handle-wood-be-stabilized.719846/