I'm getting ready to build a porch roof on the front (gable) end of my house. I do business with a hardwood sawmill and could have access to some rough cut 6x6 oak for very cheap compared the cost of the pre-fab column sleeves or wraps I've seen out there. I will be painting them white and I think it would be a pretty cool look to have the porch framed with the beefy rough cut timber. I know from experience rough cut oak boards from the mill tend to shrink a fair amount over time so my question is will I be ok using these for columns? How should I approach this? I really don't have a long time to wait and let them sit as I'm trying to finish this project before summer. Thanks