Kiln Dried

Definition

Kiln dried refers to lumber that has been heated in a kiln to remove moisture, with the removal process controlled by artificial heat and usually by controlled relative humidity.

Purpose

The purpose of kiln drying is to reduce the moisture content of lumber to a specific level, making it stable, less prone to warping, and ready for use in construction or woodworking. It also helps to prevent fungal growth and insect infestation.

Examples of Use

1. Furniture Making: Kiln dried lumber is used in furniture making to ensure stability and prevent warping over time.
2. Construction: In building construction, kiln dried lumber provides reliable and dimensionally stable materials for framing and structural components.
3. Flooring: Hardwood flooring manufacturers use kiln dried lumber to produce stable, long-lasting floors.

Related Terms

• Seasoned Wood: Wood that has been dried naturally or artificially to reduce its moisture content.
• Air-Dried Lumber: Lumber that has been dried naturally by exposure to air, taking longer than kiln drying.
• Moisture Content: The amount of water present in wood, affecting its stability and suitability for various applications.

Notes

Kiln drying must be carefully controlled to prevent over-drying, which can make wood brittle. The process can be tailored to achieve the desired moisture content for specific uses.