Lumber Moisture Content Grade

Lumber Moisture Content Grade

Lumber moisture grading is a manufacturer-provided value of moisture content, for consumers and contractors to use. There are five (5) lumber moisture content designations (S-GRN, S-DRY, KD, MC 15, and HT).

Lumber Moisture Grading

Lumber grade “S-GRN” stands for “surface green,” which means it is not dry, and has a moisture content greater than 19%. Whereas grade “S-DRY” stands for “surface dry,” and means the lumber was air-dried to reach a moisture content that is less than or equal to 19%. Moreover, lumber moisture grade “KD” stands for “kilin dry,” which means the lumber was dried using a heated kilin, for a moisture content less than or equal to 19%. And lumber grade “MC-15” stands for “moisture content 15%,” meaning the lumber has been treated to a level that is less than or equal to 15%. Lastly, grade “HT” stands for “heat-treated,” meaning the lumber has been treated to at least 133° Fahrenheit for at least 30 minutes. And this is understood to eliminate insects living in the wood.

Similar Posts

  • Focus (Hypocenter)

    ByGeo Forward

    Focus (Hypocenter) Focus (Hypocenter): In the seismology branch of geology, a focus, or hypocenter, refers to the specific place where an earthquake rupture originates. The focus, or hypocenter, underlies the epicenter when an earthquake occurs at a dip-slip fault, strike-slip fault, oblique-slip fault, or listric fault. In the event of an earthquake, geologists, and seismologists…

  • Passive Methane Mitigation

    ByGeo Forward

    Passive Methane Mitigation Passive Methane Mitigation: Passive systems refer to the non-mechanical and non-electric components of the methane mitigation process. These components remove the vapor intrusion risks of methane soil gas migration into buildings atop Los Angeles Methane Zones and Methane Buffer Zones. In fact, methane testing results typically indicate the necessity for a passive…

  • Milliequivalent per liter

    ByGeo Forward

    Milliequivalent per liter Milliequivalent per liter (meq/L): A unit used to express the chemical equivalence of the concentration of solutes in a solution. It is calculated by dividing the concentration of a substance (in mg/L) by its equivalent weight. This measurement helps in understanding the reactive capacity of ions in the solution.

  • Rigidity

    ByGeo Forward

    Rigidity Definition Rigidity – In geotechnical engineering and engineering geology, rigidity represents the ratio of the shear stress and the amount of angular rotation that it produces, within a rock sample.

  • Zeolites

    ByGeo Forward

    Zeolites Definition In geology, zeolites are a group of hydro-alumino-silicate minerals that are compositionally analogous to the feldspars. Zeolites typically comprise sodium (Na), calcium (Ca), or potassium (K) as chief metals. And zeolites also tend to develop within basalt cavities, lake sediments, oceanic sediments, and volcanic tuff. Modern Economical uses of the Zeolites Modernly, zeolites…