Cutting in old fiberboard

[Stabbsson]

Hello everyone.

I'm going to remove some tretex boards because I'm planning to make a larger doorway but need to remove the tretex first to move the electrical.

Do you have any good tips on how to "cut" in 13mm tretex that doesn’t create a ton of dust? The initial thought was a multi-tool or circular saw but I want to reduce dust!

 

[Stefan1972]

cut with a knife as deep as you can and break away?

 

[Stabbsson]

cut with a knife as deep as you can and break away?

Yes, was thinking more if there's any decent knife that can handle it without causing a meltdown 😅 I only have a snap-off blade and it wasn't that good. Maybe a concave utility knife?

 

[tergo]

https://www.byggmax.se/universalkniv-stanley-p28318