I resawed a 2x4 I've had in my garage for a couple years down to about 3/8th in strips to make the following:
After gluing the panels togerther, I glued and screwed support strips to the back hoping to avoid what happened:
It's been a few days now since I Stained it and it's now warped (and seems to be getting worse:
The support strips just bent along with the rest of it.
Did I not wait long enough during various stages of the project (only about a week from start to staining) or was my decision to use garage 2x4 the problem?