Which term describes the drying method where timber is dried in air?

• A. Photorealistic CAD-based models
• B. Alloy
• C. Aesthetic characteristics
• D. Air-drying

Answer: (D)

Air-drying is the natural drying method where timber is exposed to the surrounding air, usually in a arranged stack with spacers to let air circulate between boards. Over time, moisture moves from the inside of the wood to the surface and evaporates into the environment, reducing the timber’s moisture content. This approach is cheaper than kiln drying, but slower and more dependent on the climate, so timing can vary and there’s a higher risk of warping or cracking if boards aren’t properly stacked and monitored. The other options don’t describe a drying process for timber, so they aren’t relevant to this concept.