OK so:
There’s a lot of material on the forum about how to manually correct for kerfs using either path offsets or setting stroke width, converting stoke to path and removing the inner or outer paths that result as needed. I’ll try to find the links to those threads in a second but it’s as easy-ish as searching for “kerf” and just investing the time to read through it all. It is a bit daunting.
That being said, many box making sites have options to set kerf width. There are also lots of posts about box generators in the forum, again it’s just a matter of investing the time to read them all, which can be a lot.
So let’s see… kerf. Read this beast of a thread, you’ll be nearly expert by the time you explore it:
Box makers… I posted a roundup somewhere… hmm. Aha here we go, read this sucker:
And these are just one example of each. There are many other threads if you go digging.