Is plywood hardwood or softwood wood?
Hardwood plywood comes in four types: poplar plywood, which is poplar all the way through; MDF core, which has veneers of hardwood glued to the faces of MDF; veneer core, which is poplar plywood with veneers of higher-cost hardwoods glued to the faces; and marine hardwood, which is high-strength hardwood all the way through. The last one is very expensive, and hard to find.
