When you receive our unfinished product, you will want to finish the product as soon as possible. Any unfinished wood material open to the moisture in the air, especially in locations near water, are going to be more prone to warping.
If you cannot finish the product right away, please keep the doors/drawer fronts wrapped and sealed so that they are not exposed to moisture in the air.
The MDF panel is a great option as it does not absorb paint like solid wood and therefore will be less prone to warping. That being said, all of our paint grade products are treated to withstand the moisture warping from paint so either would be a great choice.
Pictured above is our Irvine MDF Door unfinished.