Join Date: Oct 2012
Location: Cruso n.c. in the Blue Ridge
Generally the inside moisture content on kiln dried wood is higher than the surface percentage.
The only way to know is to do a test cut and measure the inside %.
So what happens is you did a m.c, check on the surface of 9% but the internal m.c. might be as high at 18-20%, and as it sits, the moisture eeks out, and the board equalizes.
I don't subscribe to the 11 day concept since every species is different and the temps/condition you are drying in vary.
I've taken (internally measured) 25% walnut and had the (internal m.c.) % down to 11% in 3 days, on a 1 1/2" live edge slab.
I also don't normally kiln dry wood that is saturated. I try and get the m.c. down to a surface rate of ~20-25% by air drying, before it hits my makeshift kiln. Otherwise things are going to dry in a haywire fashion.
One thing also is letting wood acclimate to the moistures around you (via your garage) doesn't quite make sense in total.
The reason I say this is take your moisture meter to your garage studs and measure them. I generally get between 4 to 6% on them. I don't live in an arid climate here. They seem to hang on to the m.c. that came from the mill. Maybe they vary some, but not too much.