Wooden balance tools are simple objects, but they are still pieces of solid wood, and solid wood has opinions about where it lives. Get the storage right and your board will look the same in twenty years. Get it wrong and you can warp a brand-new board in a single winter.
This guide covers where to put your board between sessions, what conditions to avoid, and the common mistakes we see when customers contact our Kostopil workshop about boards that have gone out of shape.
The basic principle
Wood moves with the moisture in the air around it. A board kept in a room with stable humidity, away from direct heat and sun, will hold its shape for decades. A board that moves between extremes — humid summer balcony to dry winter living room next to a radiator — will cup, twist, and eventually crack.
The wood is not fragile. It is just responsive. Treat it like a good acoustic guitar and you will not have problems.
The ideal storage conditions
- Indoor temperature between 16 and 24 degrees Celsius.
- Relative humidity between 40 and 60 percent.
- No direct sunlight on the board.
- At least one metre from any radiator, fireplace, or heat vent.
- Off the floor if you live in a basement or a damp climate.
- Flat, not leaning against a wall for months at a time.
If your home meets most of these, you are fine. You do not need a humidor for a sadhu board.
The sun problem
Direct sunlight is the single fastest way to damage wood. Ultraviolet light bleaches the surface in weeks. The repeated heating and cooling cycle of a sunbeam moving across the board through the day causes uneven moisture loss on the lit side, which warps the board into a shallow bowl shape.
If your practice space has a sunny window, store the board somewhere else. A closet, under a bed, on a low shelf away from the window. Bring it out for practice and put it back.
The radiator problem
Radiators, fireplaces, underfloor heating outlets, and tumble dryer vents all do the same thing: they create a microclimate of very dry, hot air. A board within a metre of any of these will lose moisture rapidly from the side facing the heat. The board cups toward the heat source as that side shrinks.
If your only storage option is near a heat source, lay the board flat with its top face down on a folded towel and rotate it weekly so it dries evenly. Better, find a different spot.
The leaning problem
It is tempting to lean a balance board against the wall in the corner of the room. Done for a few days, no problem. Done for months, the board takes a slight S-curve as gravity pulls on it and uneven contact with the wall and floor creates pressure points.
Either store the board flat, or hang it on the wall using a cleat or two nails through holes drilled near the top edge. Hanging is great if you have wall space and want the board visible.
Humidity, in practical terms
Most homes sit between 30 and 70 percent relative humidity through the year. Wood handles 40-60 percent comfortably. Outside that range, you need to think about it.
If you live somewhere very dry (heated apartments in winter often hit 20 percent), put a small humidifier in the room with the board, or a few open jars of water nearby. If you live somewhere very humid (coastal in summer), a dehumidifier or an air-conditioned room helps.
You do not need to monitor humidity with a hygrometer, but if you have one, glance at it occasionally. Numbers below 30 percent for weeks at a time are the warning sign.
Storage during travel
If you are leaving home for a few weeks in winter and turning the heating off, the air will get cold and humid as the house cools. This is actually fine for wood. The problem is the return: when you come back and crank the heating, the wood shocks from humid-cold to dry-warm in a day. Turn the heat up gradually.
If you are leaving for months, slip the board into a cotton bag or wrap it loosely in an old sheet to slow moisture exchange.
The common mistakes we see
Storing the board in a bathroom. The humidity spikes during showers and crashes after. Constant cycling damages wood faster than steady humidity at either extreme.
Storing the board in a car. Heat and cold cycle daily, and parked cars in summer reach temperatures that melt finishes.
Storing the board in a garage or shed without insulation. Humidity tracks the outdoor weather, which is too variable.
Wrapping the board in plastic. This traps moisture and grows mould against the wood. Cotton or linen yes; plastic no.
If it warps anyway
A mildly cupped board can often be flattened. Lay it cup-side up on a flat surface, put a damp cloth across the cup, and weight the corners. Leave for a few days. The damp side absorbs moisture and swells, the dry side stays as is, and the board flattens. Then oil both sides equally so it dries evenly.
Severe warps, twists, or cracks are repairs that need a workshop. Contact us through our about page and we can advise. Browse our current balance board range if you are considering replacement.
Good storage is boring. That is the whole point. The board should sit where you put it, year after year, ready when you are.