Historically, chair rail molding served to protect plaster walls from being damaged by a pulled-out chair. Today, it still performs the same function, but homeowners primarily install it for decorative purposes, as a means of adding classic style and architectural interest. If you're a do-it-yourselfer planning a wall trim project, think about equipping yourself with construction adhesive. For one thing, the use of adhesive means you can drive fewer nails, saving effort and time. For another, a product like Liquid Nails Fuze*It creates a bond that's two times strong than fasteners alone.