TIMBER CARE
Every piece of timber is unique. Variations in colour, grain, knots, gum lines and natural features are part of its character rather than faults. Timber also responds to changes in moisture, temperature and exposure, so some movement, checking, splitting or weathering may occur over time.
Freshly milled timber contains moisture and must be stored and dried correctly before use. Although natural movement cannot be completely prevented, appropriate handling can greatly improve the timber’s stability and life.
Caring for Freshly Milled Timber
Slabs and boards should be stacked flat on a firm, level base and raised clear of the ground. Place clean, dry timber spacers between every layer to allow air to circulate around each board.
For the best result:
Support the stack evenly along its full length.
Position stickers directly above one another throughout the stack.
Use stickers of a consistent thickness.
Place weight evenly across the top where practical.
Keep the timber protected from rain and harsh sunlight.
Allow airflow around all sides of the stack.
Check the timber periodically for mould, pests or uneven movement.
Do not place freshly milled timber directly on the ground or wrap it tightly in plastic. Trapped moisture can encourage mould, staining and decay.
Choosing the Right Storage Area
Rapid or uneven drying can increase the likelihood of bowing, twisting or splitting, therefore a shaded area with steady airflow supports a slower and more consistent drying process. Timber should be stored under cover in a dry, well-ventilated location such as a well ventilated shed. The area needs to provide shelter from direct rain, sunlight and strong wind while allowing the timber to breathe.
Sealing the Ends
Moisture escapes more quickly through the end grain than through the faces of a slab or board. Applying a dedicated end-grain sealer, wax coating or suitable paint soon after milling can slow moisture loss and help reduce end checking and splitting. End sealing cannot prevent every crack, it may preserve more of the timber’s ends providing more usable timber lengths.
Drying Time
As a broad guide, air-dried hardwood may require approximately one year for every 25 mm of thickness. This is only an estimate. Actual drying time will depend on the timber species and thickness, local humidity, seasonal conditions, airflow and storage method.
Dense Western Australian hardwoods, including Jarrah and Marri, may require extended drying periods. A moisture meter should be used to confirm that timber has reached a moisture content suitable for its intended application before construction, machining or finishing begins.
Controlled kiln or dehumidifier drying may reduce drying time, but the process must be carefully managed. Drying timber too quickly can increase internal stress, cracking, distortion and checking. Specialist advice is recommended before attempting accelerated drying.
Natural or Finished Appearance
For a naturally weathered appearance, timber may be left unfinished. Exposure will generally cause its colour to soften, fade or silver over time, while the grain and fibres continue to move naturally.
To retain more of the original colour and reduce weathering, apply a finish suitable for the timber species, location and intended use. Outdoor timber normally requires an exterior-grade product and ongoing maintenance. Seek advice from your builder, furniture maker, designer or coating supplier before selecting an oil or sealer.
Always test a finishing product on a small, inconspicuous area first, as coatings may alter the timber’s colour and appearance.
Important Information
Once timber has been collected from or delivered by BSD Milling, its transportation, storage, drying, installation, finishing and ongoing maintenance are the purchaser’s responsibility. BSD Milling cannot control the conditions in which timber is stored or used after it leaves our care.
Natural timber may shrink, expand, bow, twist, check, split, change colour or display other natural variations as it dries and ages. These characteristics do not necessarily indicate a defect.
The information provided above is general guidance only. Requirements vary according to species, moisture content, dimensions, intended application and environmental conditions. Customers should obtain project-specific advice from an appropriately qualified timber professional, builder, cabinetmaker, engineer or coating manufacturer.
Nothing in this guidance excludes any rights or remedies that cannot lawfully be excluded under the Australian Consumer Law.