If you’re painting a room, one of the first decisions you’ll face is whether to paint the trim or the walls first. While there’s no single “right” answer, most professional painters ...

For a more cost-effective option, look for MDF (medium-density fiberboard) trim, which also takes paint beautifully, ...

3. Create serenity. For a completely seamless look, use the same white paint color for your trim, walls and built-in units. Your room will feel serene and will look extra spacious.

My go-to trim color for years has been Benjamin Moore’s Decorator’s White, a crisp chalky tone that, when used for trim, makes any wall color pop.

This type of trim is installed near the top of a wall and is used to hang pictures or other decorative items. The cost of picture rail installation typically ranges from $1 to $3 per linear foot.

Cleaner lines for pros: “You don’t have to cut into the wall, which can make the process faster,” says Murray. Easier to tape walls than trim: Once the trim is fully dry, it’s often easier ...