In LLVJ_16 Intro Gallery a "flat file system" is mentioned.
I'll want to install some "flat file storage" myself, but it's quite impossible to get a "flat file system" to the wanted place and it's quite expensive anyway.
I could build one in place, but then it would be wood (probably osb). This will outgas, but the most in the first weeks/month's. I have time to let it outgas a month.
I'll need to add some type of finish (maybe paint), to get it "smooth" and "clean".
Are there recommendations on materials and/or finish?