Teak furniture should generally leave the factory at **8%–12% moisture content**, with the final target agreed for its destination and intended use. This range helps limit avoidable movement
Treat moisture content as a documented export-quality requirement: define the target, the allowed variation, the meter method, the sampling locations, and the time of measurement in the purchase order or inspection plan.
For most kiln-dried teak furniture, specify 8% to 12% moisture content at the time of packing and export, measured with a calibrated resistance meter on representative components. The correct release range still depends on final indoor or outdoor use and the destination’s expected relative humidity, not Thailand’s climate alone.
Moisture content is the water mass in wood expressed against oven-dry wood mass; it is not a shipping-season guess. A factory should condition finished components after kiln drying, then measure concealed and exposed areas with a meter checked against oven-dry samples when a dispute-sensitive order requires it. The USDA Wood Handbook explains that wood continues exchanging moisture with surrounding air until it approaches equilibrium moisture content. Record readings by component, meter setting, date, operator, and shipment reference.
Destination conditions determine whether the usual 8% to 12% export range is appropriate. Furniture intended for air-conditioned interiors in dry or cold regions may need a lower agreed target, while covered outdoor pieces or humid destinations can tolerate more. The buyer, factory, and inspector should define the target and permitted variation together.
The key is equilibrium moisture content: wood responds to ambient temperature and relative humidity after installation. Rather than relying on a universal number, state the intended location, seasonal indoor conditioning, installation type, and acclimation period in purchase documents. USDA reference tables show that equilibrium moisture content shifts materially with temperature and humidity, so a 2–4 percentage-point difference can matter to joinery and panel movement. For export packing, distinguish wood condition from ISPM 15, which regulates wood packaging material rather than the furniture’s moisture specification.
An export-ready moisture-control record combines a buyer-approved target, a repeatable meter procedure, and clear sampling evidence. Measure after conditioning and before wrapping, because humid storage or container loading can change surface readings. Release the order only when readings and visual inspection meet the written tolerance for the specified destination and product use.
A useful record identifies the purchase order, teak component, target moisture content, permitted tolerance, meter brand and species setting, pin or scan location, and individual readings. Sample thicker rails, table tops, door frames, and concealed structural members rather than only easy-to-reach surfaces. Photograph the meter display where buyer procedures require it, retain the calibration record, and note storage conditions before loading. This evidence gives a third-party inspector, hotel purchaser, or designer a consistent basis for release, corrective conditioning, or an agreed exception.
A resistance moisture meter is practical for routine release checks, but its species setting, temperature correction, pin depth, and calibration affect the result. For teak orders with strict acceptance terms, agree on the meter model and sampling plan, and use oven-dry verification on disputed or reference samples.
Yes. Teak still gains and loses moisture as ambient relative humidity changes, even though its natural extractives support durability. Shipping at an agreed moisture content reduces movement risk; it does not make the wood dimensionally fixed. Proper joinery, panel allowances, finish, and destination acclimation remain essential.
Do not automatically reject it. Recheck with a calibrated meter at several locations, confirm the species setting and temperature, and compare results with the contract’s target and tolerance. Then identify whether the reading is localized, surface-related, or consistent through the component before deciding on additional conditioning, rework, or a documented buyer concession.
Moisture-content targets should be agreed in writing between the buyer, manufacturer, and relevant inspector. This page is general technical guidance and does not replace a project specification, destination-market requirement, or independent inspection protocol.
