The two terms are often used loosely, but they describe different kinds of work and different kinds of training.
Interior design
Professional interior design education covers space planning, building systems and codes, construction documents, materials, lighting, accessibility and professional practice, taught largely through studio projects. Program-level accreditation (CIDA) evaluates programs at this professional level.
Interior decorating
Decorating training concentrates on furnishings, color, accessories and the styling of existing rooms. Many decorating courses are short or self-paced and award a school certificate of completion. That is a legitimate skill pathway for many people, but it is not equivalent to a professional interior design degree.
What follows from the difference
Decorating and home-staging programs generally do not prepare students for the NCIDQ examination or for state-level interior design registration. Requirements vary by state and change over time, so check the official sources in State registration and professional requirements.
How the directory handles it
Decorating and home-staging programs are listed on their own page, Interior decorating programs, and are never mixed into the interior design results. Each listing shows the exact award and whether it is a school-issued certificate.
Official sources
- Council for Interior Design Accreditation: accredited programs · accessed 3 November 2026