A friend just turned me on to acetylated wood:<p><a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Acetylated_wood" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Acetylated_wood</a><p>A supposedly more eco-friendly way to make (e.g, ground-contact) wood rot-resistant. Sure beats cyanide, methinks.