The less expensive types of crown molding—PVC, polyurethane, and polyethylene—are easiest to install. Successful installation of MDF or wood crown molding requires intermediate carpentry skills.

It may be expensive, but you'll get the molding you want. Avoid Using MDF Trim in Moist Places MDF (medium-density fiberboard) is inexpensive and a great material for painted trim, but only if you ...