Reply by ksSlim

Depending on finish or lack thereof, all wood will attempt to allow moisture to move in and out to equalize with the environment.
The rule of thumb I was taught, the denser the wood, the more lateral (width wise) movement.
Always good to allow wood to stabilize in the area of use. After “climatized”, mill to rough size and watch for movement for a week or two before final milling and assembly.

-- Sawdust and shavings are therapeutic