Wood shrinks and swells at a cellular level until it reaches equilibrium; this is known as "seasoning." Douglas fir, or simply "fir" as it is typically referred to, is the most stable wood on a cellular level because once it is seasoned, it virtually stops shrinking or warping.

How do I stop my Douglas fir from warping?

Consider these when selecting the type and grade of your Douglas fir to minimize the likelihood of warping and cupping: Opt for kiln-dried lumber. This process quickly removes excess moisture evenly from the wood in a controlled environment whereas air-dried lumber takes much longer to dry.

Is Douglas fir prone to warping?

Fir. Wood shrinks and swells at a cellular level until it reaches equilibrium; this is known as "seasoning." Douglas fir, or simply "fir" as it is typically referred to, is the most stable wood on a cellular level because once it is seasoned, it virtually stops shrinking or warping.