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Interior Design and Decoration Course
Over 2 million learners across the globe

Interior Design and Decoration Course

4.4

Transform any space with the knowledge and confidence of a trained interior designer. This comprehensive course covers everything from colour theory and space planning to lighting design, material selection, and client management. Whether you're starting fresh or levelling up your skills, you'll graduate ready to take on real residential and commercial projects.

Dedika for businesses

What you will learn:

This course gives you a complete, structured education in interior design and decoration. You will learn how to apply core design principles, develop colour palettes, and plan functional layouts for any room type. You will gain hands-on knowledge of materials, finishes, lighting systems, and furniture selection. The curriculum also covers residential and commercial project workflows, client consultation techniques, and professional business practices. By the end, you will have the skills to design spaces that are beautiful, functional, and built to impress clients.

How you study practically Interior Design and Decoration Course

How you practise Interior Design and Decoration Course

For companies looking to train their teams

With Dedika for businesses, the course includes exercises and examples tailored to your own business and the way your company needs.

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Course content

8 Chapters • 40 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Interior Design

  • Lesson 1 • Elements of Design

    Examines line, shape, form, texture, pattern, and space as the building blocks of every interior. Connects each element to practical compositional decisions.

  • Lesson 2 • Understanding Space and Function

    Analyses how spatial dimensions and human activity requirements shape design decisions. Establishes the link between function and aesthetic outcome.

  • Lesson 3 • Professional Roles and Industry Overview

    Maps the interior design profession, key stakeholders, and career pathways. Clarifies distinctions between interior design, decoration, and architecture.

  • Lesson 4 • History and Evolution of Interior Design

    Traces design movements from antiquity to contemporary practice. Contextualises current trends within historical shifts in culture, technology, and materials.

  • Lesson 5 • Core Design Principles

    Introduces balance, rhythm, emphasis, proportion, and unity as foundational tools. Applies each principle to real spatial scenarios for immediate comprehension.

Chapter 2See details

Colour Theory and Application

  • Lesson 1 • Colour Psychology in Interiors

    Explores how colour influences mood, perceived space, and occupant behaviour. Connects psychological research to room-specific colour strategy.

  • Lesson 2 • Light and Colour Interaction

    Analyses how natural and artificial light alter colour perception throughout the day. Equips students to test and adjust colours under real lighting conditions.

  • Lesson 3 • Colour in Commercial and Branded Spaces

    Applies colour strategy to retail, hospitality, and corporate environments. Demonstrates how brand identity translates into spatial colour decisions.

  • Lesson 4 • The Colour Wheel and Colour Relationships

    Explains hue, value, saturation, and the structural logic of the colour wheel. Provides the vocabulary needed for all subsequent palette decisions.

  • Lesson 5 • Developing Interior Colour Palettes

    Teaches a systematic process for building cohesive multi-room palettes. Integrates client preferences, lighting conditions, and material finishes.

Chapter 3See details

Space Planning and Layout Design

  • Lesson 1 • Reading and Interpreting Floor Plans

    Builds fluency in architectural drawing conventions, symbols, and scale. Enables accurate spatial analysis before any furniture or finish decisions are made.

  • Lesson 2 • Scaled Drawing and Space Planning Tools

    Introduces manual drafting and digital space planning software for producing accurate layouts. Connects drawing skills to professional client presentation.

  • Lesson 3 • Zoning Multi-Use and Open-Plan Spaces

    Teaches techniques for defining distinct functional zones without full walls. Uses rugs, lighting, furniture, and level changes as zoning tools.

  • Lesson 4 • Traffic Flow and Circulation Planning

    Maps primary and secondary circulation paths to prevent congestion and improve usability. Applies circulation logic to both residential and commercial floor plans.

  • Lesson 5 • Furniture Arrangement Principles

    Establishes rules for grouping, anchoring, and spacing furniture within a room. Balances visual weight, conversation zones, and clearance requirements.

Chapter 4See details

Materials, Finishes, and Surfaces

  • Lesson 1 • Flooring Materials and Selection

    Compares hardwood, tile, stone, carpet, vinyl, and concrete for durability, maintenance, and aesthetics. Guides selection based on room function and client lifestyle.

  • Lesson 2 • Ceiling Design and Treatments

    Explores coffered, tray, vaulted, and acoustic ceiling options and their spatial effects. Teaches how ceiling treatment alters perceived room height and character.

  • Lesson 3 • Fabric, Upholstery, and Soft Furnishings

    Introduces fibre types, weave structures, and performance ratings for interior textiles. Matches fabric properties to upholstery, drapery, and cushion applications.

  • Lesson 4 • Sustainable and Innovative Materials

    Examines recycled, reclaimed, and low-emission materials alongside emerging surface technologies. Builds a framework for making environmentally responsible material choices.

  • Lesson 5 • Wall Treatments and Finishes

    Surveys paint, wallpaper, panelling, tile, and plaster as wall finish options. Connects finish choice to room scale, moisture levels, and design intent.

Chapter 5See details

Lighting Design for Interiors

  • Lesson 1 • Fixture Types and Selection

    Surveys recessed, pendant, track, sconce, and floor lamp categories with their spatial applications. Connects fixture scale and style to room proportion and design concept.

  • Lesson 2 • Natural Light and Daylighting Strategies

    Analyses window placement, glazing types, and shading devices to optimise daylight. Integrates daylighting with artificial systems for energy efficiency.

  • Lesson 3 • Lighting Controls and Smart Systems

    Introduces dimmers, occupancy sensors, and programmable lighting control systems. Demonstrates how controls enhance comfort, energy savings, and scene flexibility.

  • Lesson 4 • Layered Lighting Strategy

    Teaches ambient, task, accent, and decorative lighting as complementary layers. Demonstrates how combining layers creates flexible, dynamic interior environments.

  • Lesson 5 • Fundamentals of Lighting Science

    Covers lumens, lux, colour rendering index, and colour temperature as measurable lighting properties. Provides the technical foundation for all fixture and lamp decisions.

Chapter 6See details

Furniture Selection and Styling

  • Lesson 1 • Construction Quality and Materials

    Examines joinery methods, frame materials, and cushion construction as quality indicators. Equips students to evaluate furniture durability and value for client budgets.

  • Lesson 2 • Styling and Accessorising Spaces

    Applies the principles of vignette building, layering, and object curation to finished rooms. Transforms functional spaces into visually rich, photographable environments.

  • Lesson 3 • Furniture Styles and Historical Periods

    Surveys major furniture styles from traditional to contemporary and their defining characteristics. Enables accurate style identification and period-appropriate sourcing decisions.

  • Lesson 4 • Custom and Built-In Furniture Design

    Introduces the design and specification process for custom millwork and built-in cabinetry. Demonstrates how built-ins maximise storage and define spatial character.

  • Lesson 5 • Furniture Specification and Procurement

    Teaches how to write furniture specifications, manage lead times, and coordinate delivery. Connects specification accuracy to project timeline and budget control.

Chapter 7See details

Residential Interior Design Projects

  • Lesson 1 • Concept Development and Mood Boards

    Translates the design brief into a visual concept using mood boards, material samples, and reference imagery. Establishes a clear design direction before detailed specification begins.

  • Lesson 2 • Client Consultation and Brief Development

    Structures the discovery process to extract client needs, lifestyle, budget, and aesthetic preferences. Produces a written design brief that guides all subsequent project decisions.

  • Lesson 3 • Kitchen and Bathroom Design

    Addresses the technical and aesthetic requirements of wet and high-use spaces. Covers cabinetry layout, fixture selection, ventilation, and waterproofing considerations.

  • Lesson 4 • Bedroom and Home Office Design

    Designs restful and productive private spaces with attention to acoustics, storage, and ergonomics. Integrates biophilic and wellness principles into personal environments.

  • Lesson 5 • Living and Dining Room Design

    Applies space planning, furniture selection, and lighting design to social living areas. Balances comfort, entertainment function, and visual cohesion.

Chapter 8See details

Commercial Interior Design and Project Management

  • Lesson 1 • Contracts, Fees, and Professional Practice

    Introduces standard contract structures, fee models, and professional liability in interior design. Prepares students to operate ethically and legally as practising designers.

  • Lesson 2 • Commercial Design Typologies

    Surveys office, retail, hospitality, healthcare, and educational interior design requirements. Identifies the unique functional, regulatory, and branding demands of each typology.

  • Lesson 3 • Accessibility and Inclusive Design

    Applies universal design principles and accessibility standards to commercial and residential projects. Ensures spaces are usable by people of all abilities and age groups.

  • Lesson 4 • Project Budgeting and Cost Control

    Builds skills in preparing, tracking, and communicating project budgets across all phases. Introduces contingency planning and value engineering to protect project viability.

  • Lesson 5 • Project Scheduling and Coordination

    Teaches Gantt chart creation, milestone tracking, and trade coordination for interior projects. Develops the organisational skills needed to keep complex projects on schedule.

Certification

Your valid completion certificate

This course is for you:

  • Aspiring designers: eager to turn a lifelong passion for interiors into a career.

  • Career changers: ready to leave unrelated fields and enter the design industry.

  • Real estate professionals who wish to advise clients on staging and spatial value.

  • Home renovators: those looking for structured knowledge to greatly enhance their project results.

  • Architecture graduates: looking to specialise their skills specifically in interior environments.

  • Small business owners: aiming to redesign their commercial spaces with professional confidence.

What our students say

Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of my interest without needing to change platforms... I thank you for everything you do, I've already recommended you to other people...
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Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.
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Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
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Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos help a lot with learning.
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André FelipePrompt Engineering Student

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