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Interior Design & Decorating


Interior Decorating Certification Course

QC Design School’s online Interior Decorating course allows you to channel your passion for home décor into a successful decorating career.

Throughout this course, you’ll learn how to design custom interiors from the ground up. Discover a variety of historical and contemporary design styles, as well as classic and modern design materials. In step-by-step videos, you’ll learn how to create professional floorplans and furniture arrangements. You’ll also study color theory and its uses in home decorating.

Through hands-on and theory-based assignments, you’ll learn how to work with a variety of budget types and client personalities. You’ll also receive full business training so you can launch your own business!

IDDP Course Certification Badge

Upon graduation, you’ll receive an industry-recognized certification and the designation of International Design & Decorating Professional (IDDP). With your certificate and professional title, you’ll be ready to start your own business or work for an existing design firm right away.

Included in Your Course

Lifetime Access to
Course Material

Once you’re a member of the QC family you’ll have lifetime access to all the tools and resources available to QC students. This includes discounts on industry products and so much more!

Personalized Feedback
from Industry Experts

Just because you’re learning online doesn’t mean you’re learning alone. You’ll receive personalized audio feedback from your tutor on every design assignment you submit.

Professional Business

Catapult your career with access to real-world client templates, self-study assignments, and bonus business lessons. Utilize these resources to develop your marketing and customer service skills.

IDDP Course Materials

Course Outline

Select the buttons below to learn about each Unit in the Interior Decorating course.

Unit A

Learn about the elements and principles of decorating, as well as the role of the professional interior decorator. Your introductory text walks you through the entire decorating process, from signing the contract to implementing the project. You’ll study color theory and become familiar with various popular design styles, from country to contemporary.

Home decorating using device to create floorplan of house

Unit B

Discover basic design materials such as wood, ceramic, plaster and stone, and learn how they can be used in different rooms for a variety of functional and aesthetic effects. Glass, concrete and metal are just a few of the modern home design materials that you’ll explore in this unit of your interior decorating class. Explore a wide variety of international and historical design styles, from French Rococo to Victorian to Scandinavian. You’ll also study various types of wall treatments and textiles, and learn how to use them in order to alter a room’s appearance and character.

Decorative waiting space with couch and plush rug

Unit C

Study lighting functions and fixtures, and learn how to create different moods using cool, warm and neutral lighting within a space. Compare various window treatments and learn how to dress a window effectively to suit any style of room, from traditional to contemporary. Create custom interiors by showcasing home accessories using shelves and cabinets, and by properly arranging artwork. Discover tips for accessorizing from award-winning interior designer Jane Lockhart in a special bonus video!

Modern private space bedroom design in bright room

Unit D

Become a master of one of the most complex aspects of interior decorating: drawing professional floorplans. First you’ll learn how to measure and sketch the dimensions of a room. Use these skills to draw floorplans which will provide your clients with a bird’s-eye view of your home design plans. Discover the balance, visual weight, and traffic patterns of a room and learn how to harmoniously place furniture within different spaces. Throughout this unit you’ll be guided by step-by-step videos featuring QC tutor Angie Chapman.

Example of designer's floorplan

Unit E

Learn about the special considerations involved in creating home design plans for specialized rooms in the home, including the bedroom, kitchen and bathroom. You’ll discover the professionals involved in a major renovation as well as simple solutions for refreshing and redecorating without a full remodel. From functional considerations to style and personality, you’ll develop the decorating skills necessary to create practical and beautiful spaces in the home.

Living space decorated with pattern and color accents

Unit F

For your final project, you’ll pull together everything you’ve learned in your interior decorating course. You’ll create a custom-designed space for a mock client. Show off all the skills you’ve gained as a home design student, and use your knowledge to launch your interior decorating career!

Minimal bedroom design with white and beige palette

Unit G

Once you’ve completed units A to F, you’ll have the option to complete a specialized business unit designed for interior decorators. Learn how to start and register your own business. Explore the world of marketing and promotion, including content on how to build your brand and how to market your business online. Selling your services, creating contracts and maintaining good client relationships are all covered as you learn about working with clients. You’ll also cover special topics such as working with contractors and using interior decorating software. In a bonus online text, discover how to create a stunning interior decorating portfolio that will help to attract new clients and build your brand.

Sample Video

Furniture Layout

Watch the video to get an inside look at the online Interior Decorating course. QC tutor Angie Chapman walks you through the creation of a furniture layout.

“I have gained so much with the courses at QC Design School. It’s helped me gain confidence and knowledge as [a designer] and I'm looking forward to more certificates ahead. The staff and teachers have been great and they have been so helpful through the courses I’ve enrolled in. Thanks, QC.”

Lorraine PutzInternational Design & Decorating Professional
Interior Decorating Course Logo Grey

Learn from Industry Experts

When you enroll with QC Design School, you’ll be matched with an industry professional currently working in the field who will review your work and provide you with in-depth feedback and advice on every assignment. These accomplished tutors have years of experience in the decorating industry and are eager to share their professional insight to help you succeed.

Your personal tutor will provide you with in-depth audio feedback on each assignment to let you know what you did well and how you could improve. Use this feedback to guide you through the next unit in your course.

Flexible Payment Plans

SAVE $500

One payment of $1198

Pay In Full

Save when you
pay in full.


Lower Payments

Start for $75

Installment Plan

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Your Tuition Includes

  • All course guides, lesson texts, materials, and instructional videos
  • Lifetime access to digital course materials in the Online Student Center
  • Access to student support 7 days a week
  • A complete business training series
  • Your certificate upon graduation
Choose Your Second Certification Course

QC offers online design courses for every area of home design and decorating. Start a new and exciting career in one of these growing fields!

Professional Organizing Course
Home Staging Course
Accelerate Your Design Business
QC's 21-Day Money-Back Guarantee

21 Day Money-Back Guarantee

Once your enrollment has been processed, you have 21 days to review the course materials and decide whether you want to take the course. If you decide this course isn’t the right fit for you and your career goals, simply contact the school and you’ll receive a full refund! As long as you haven’t submitted any work to your tutor yet, your tuition will be refunded in full.

Additional information on QC’s money-back guarantee is available in your enrollment agreement

Graduate Success Stories

Find out how QC Design School has helped numerous students and graduates reach their goals with flexible online training.

Ready to take the first step towards a new career in Design and Decorating?
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