Working with unprepared stock is usually no fun. I prefer to work from rough lumber purchased from the yard (because it’s both more economical than pre-surfaced stock and there is more variety available). But for things where 3/4″ white pine will suffice, it’s hard to beat the home center common boards. Spend an hour digging through the pile and you’re bound to find clear, straight grain stock. And if you don’t, come back in a week and try again.
But even the clearest, straightest grain stock tends to cup and twist once it’s been in the shop for a week. Re-flattening can take it down to 5/8″ thickness or even less (depending how severe the cupping is), and it adds time and aggravation to the process.
But what if cupping and twist didn’t matter? If you’re just gluing and nailing something together, couldn’t you instead flatten the boards with some clamping cauls and go to town? The answer is, of course, “yes”. And that’s the approach I took when knocking together a quick Japanese-style toolbox for a recent trip out of town (don’t worry; I quarantined both before and after).
We modern woodworkers get hung up on perfection, sometimes. To us, everything needs to be piston fit and machinist flat, even when it really doesn’t matter. But, in reality, only some surfaces need to be perfect. Our forebears knew this (just look at the hidden surfaces in any period masterwork). If the wood is going to restrained, it doesn’t really need to be perfect in the first place.
And so, once glued and nailed, and then reinforced with floorboards and gussets, also nailed on (and maybe even glued), any wayboard boards on this toolbox will be restrained from future movement. Might it blow apart in the future from some unforeseen stress? Maybe. But probably not.
And, in any event, if it does, it’s just some home center common grade white pine 1×12’s joined with glue and nails. I can always knock it apart and add some dados to keep things more in alignment.