Title: Reclaimed Wood Prep—Borate Wash or Not?

Letting reclaimed wood acclimate is a step too many people skip, honestly. I’ve seen more than one project warp or split because someone rushed it. That said, I’m not totally sold on always using borate washes unless there’s a clear risk. In some climates, termites are relentless, so I get the extra caution. But in cooler or drier regions, sometimes the chemical route feels unnecessary and can even impact air quality indoors, depending on ventilation and finish choices.

I’m curious—did you notice any change in the wood’s appearance after the borate wash? I’ve had mixed results. Sometimes it leaves a bit of residue or dulls the grain, which kind of defeats the purpose if you’re going for that raw, natural look. On the other hand, I’ve also seen untreated beams develop issues years down the line—powderpost beetles are sneaky.

One thing I’ve started doing is sourcing reclaimed wood from old barns or industrial sites where it’s already stood up to decades of weather and pests. It’s not foolproof, but it seems like those boards have already proven themselves. Still, nothing’s perfect... Had a batch last year that looked great but turned out to be riddled with old nail holes and hidden rot once we started cutting.

Curious how others balance preservation with keeping things as natural as possible. Do you ever try heat treating instead of chemicals? Or maybe just rely on regular inspections and maintenance? There’s always a trade-off between durability and aesthetics—sometimes feels like you have to pick your battles on every project.

Title: Reclaimed Wood Prep—Borate Wash or Not?

I hear you on the borate wash debate. I’ve used it a few times, mostly when I was working in the southeast where termites are basically a given. But honestly, in drier climates, I usually skip it unless there’s obvious bug activity. The residue thing is real—sometimes it leaves this chalky film that’s a pain to sand off if you want that clean, raw look. I’ve had clients complain about the smell too, especially if the space isn’t well-ventilated.

Heat treating’s interesting, but I’ve found it’s not always practical for bigger beams or batches. Plus, it can mess with the moisture content if you’re not careful, and then you’re back to dealing with warping or splitting down the line. I’ve tried just relying on regular inspections and spot treatments, but that’s a gamble—especially if you’re selling or leasing and someone else is responsible for maintenance.

I get what you mean about old barn wood being “proven,” but even then, I’ve run into hidden rot or bug tunnels that only show up once you start milling. Sometimes I wonder if it’s better to just accept some imperfections and patch as you go, rather than chase perfect preservation.

Curious—has anyone tried using natural oils or waxes as a barrier instead of chemicals? I’ve heard mixed things about tung oil or linseed oil for pest resistance, but never really tested it myself. Seems like it could be a good middle ground if you’re worried about air quality but still want some protection.

Title: Reclaimed Wood Prep—Borate Wash or Not?

I get the hesitation with borate, but honestly, I’d be careful about skipping it even in drier climates. Bugs can still show up, especially if the wood’s been stored outside or you’re not sure of its history. Natural oils like tung or linseed are great for finish and some moisture resistance, but I haven’t seen much solid evidence they actually deter pests long-term. I tried linseed on some old floorboards once—looked awesome, but a year later I found powderpost beetle dust under a few boards. Maybe it helps a bit, but I wouldn’t count on it as your only line of defense.

- Borate’s not glamorous, but it works. I’ve seen too many “clean” beams turn into bug hotels after a year or two, especially if they sat outside for any length of time.
- Oils look great, but like you said, they’re not pest-proof. I’ve had linseed-treated barn wood get hit by beetles—looked fine until the dust started showing up.
- If you’re putting in the effort to reclaim wood, might as well go the extra step with borate. It’s cheap insurance and doesn’t mess with most finishes.
- Only exception I’d make is if you know the wood’s history 100%... but honestly, who does?

Title: Borate vs Oils for Reclaimed Wood

I get the appeal of oils—nothing beats that look on old pine—but I’ve had the same issue with powderpost beetles sneaking in. Borate’s not flashy, but it’s saved me a headache more than once. Only thing I wonder about is how deep it actually penetrates on denser woods. Anyone ever had trouble with that? I’ve mostly used it on softer stuff, so maybe I’m missing something.