A well-made sadhu board is built to outlast its owner. Most boards from our Kostopil workshop will be used by someone's grandchildren. But longevity is not automatic. A few small habits will keep the board looking, feeling and performing as it should for decades. This is the maintenance guide we wish came with every board.
The Materials You Are Caring For
A typical sadhu board is solid hardwood with metal nails set into the foot surface. The wood is alive in the slow sense: it responds to humidity, temperature and oils on the skin. The nails are stable but benefit from occasional cleaning. Both materials reward simple care and punish neglect.
Understanding this is most of the battle. You are not maintaining a piece of plastic equipment. You are caring for a craft object made of real materials.
After Each Session
If your feet were sweaty, wipe the nail surface with a clean dry cloth. That is it. No spray, no cleaner, no polish. Five seconds of attention prevents nearly all long-term issues.
If the board is dry after the session, you can skip even this. Most home practitioners wipe weekly rather than daily.
Weekly Care
Once a week, give the board a more thorough wipe. A slightly damp cloth, wrung out so it is barely moist, on the wood surfaces. A dry cloth on the nail surface. Let the board air dry briefly before putting it back in its usual spot.
Do not use household cleaning sprays. They contain surfactants, fragrances and sometimes alcohols that will degrade the wood finish over years. If you feel the board needs more than water, a small amount of mild natural soap on the wood surfaces, fully wiped off, is fine occasionally.
Monthly: Oil the Wood
Once a month, oil the wooden surfaces of the board. A small amount of food-grade mineral oil, linseed oil or a specialised wood-care oil is ideal. Apply with a soft cloth, rub in along the grain, let it sit for fifteen minutes, then wipe off any excess.
Oiling keeps the wood from drying out, prevents micro-cracks at the edges, and deepens the natural colour. A board oiled monthly for ten years looks significantly better than the same board left untreated.
If the wood feels rough or chalky, you have waited too long. Oil immediately, and add a reminder.
Nail Care
Copper nails will develop a patina over time. This is harmless and, for most practitioners, desirable. The patina protects the underlying copper and gives the board character. If you prefer a bright finish, polish the patina off with a soft cloth and a small amount of metal polish, then wipe thoroughly. We recommend leaving the patina to develop.
Steel nails should be wiped dry after sweaty sessions to prevent any spot rust. If small rust spots appear, a soft brass brush or fine steel wool will clear them quickly. After cleaning, a tiny amount of mineral oil on a cloth, wiped lightly across the nail tips, will protect against future moisture.
Never use sandpaper on the nail tips. You will dull them unevenly and change the practice.
Storage
Store the board flat or upright in a place with stable humidity. Avoid direct sunlight, which fades and dries the wood. Avoid radiators, heating vents and fireplaces, which dry the wood unevenly. Avoid damp basements and unheated garages, which expose the wood to moisture cycles that cause warping.
A normal living room corner is perfect. So is a bedroom shelf or a yoga studio cupboard.
If you must store the board for long periods, wrap it loosely in cotton cloth and place a small wooden block under each end so air can circulate.
Travel
Sadhu boards are not airline cabin friendly. They are heavy enough to count as luggage and sharp enough to raise eyebrows at security. If you must travel with a board, check it as luggage in a padded bag, and avoid extreme temperature swings if you can.
For frequent travellers, some workshops including ours make smaller travel boards. See the balance boards collection for current options.
When Things Go Wrong
A loose nail is rare in a well-made board, but it can happen after years of heavy use or if the board has experienced significant humidity swings. Do not try to hammer the nail back in. Contact the maker. From our workshop, we repair our own boards for the original buyer and for many second-hand owners as well.
A crack in the wood is usually an aesthetic issue, not a functional one. If the crack does not affect the foot surface or the structural integrity, leave it. The board will continue to work for decades.
Warping in the wood is rare but possible if the board has spent time in extreme humidity. Mild warping often corrects itself over a few months back in stable conditions. Severe warping is a workshop repair.
How Eugene Cares for His Board
Eugene Oliynyk has practiced daily since 2018 on every level including 20mm. His personal board has lived through eight years of daily use, four moves, three winters of central heating, and an ocean's worth of foot sweat. His routine is the simplest possible: dry wipe after sweaty sessions, oil the wood every few months, and otherwise leave the board alone.
The board looks better today than the day it was made.
What Not to Do
Do not put the board in a dishwasher. Do not soak it. Do not use bleach or ammonia. Do not store it on a heater. Do not let pets chew the corners. Do not stand on it in shoes. Do not let children jump on it.
These warnings sound silly, but every one of them is something we have seen.
One Honest Closing
A sadhu board does not need much. Wipe it when it is dirty, oil it occasionally, and store it somewhere reasonable. Do these three things and the board will outlast you. The rest of the catalogue is at METADESK if you ever want to add a piece, but most practitioners stay with their first board for life.