In article , tiredofspam
wrote:

As you said air will absorb the moisture, even kiln dried wood.
So that being said, I have air dried lumber that is in the 6% area right
now. Left long enough Air dried lumber will be dry. Left long enough
kiln dried lumber will hyrdoscopicaly pick up the moisture in the air
and be at a higher moisture content than it was after kiln drying. NO?

Kiln drying brings it down quicker. It doesn't mean you can't get there
slower.

The below is quoted from:

U.S. DEPARTMENT OF AGRICULTURE € FOREST SERVICE FOREST PRODUCTS
LABORATORY € MADISON, WIS.
In Cooperation with the University of Wisconsin
U.S.D.A. FOREST SERVICE RESEARCH NOTE FPL-0226
1973
MOISTURE CONTENT OF WOOD IN USE

The entire 6 page report is available as a .pdf from the following url:

http://www.fpl.fs.fed.us/documnts/fplrn/fplrn226.pdf

"Air-Dried Lumber and Dimension

In most parts of the country, the minimum moisture content that can be
generally obtained in air drying is about 12 to 15 percent. Most
air-dried material is usually closer to 20 percent moisture content
when used.
Air-dried lumber is suitable for items that are not ordinarily
subjected to the artificial heat and dehumidification of buildings or
where appreciable shrinkage can be tolerated. All types of out-
buildings, such as sheds and barns, can usually be safely constructed
of air-dried lumber. Air- dried lumber is also satisfactory for
products used outdoors, such as boxes and crates, parts of agricultural
implements, and truck and trailer bodies."

If you got 6%, good for you. I tend to go along with the FPL figures
publisehed in the report.



Joe
aka 10x