
Interior Decor Course
Transform any space with the knowledge and skills professional interior designers use every day. This comprehensive Interior Decor Course covers everything from colour theory and furniture selection to lighting design and client management. Whether you want to redesign your own home or launch a design career, this course gives you the tools to make it happen.
What you will learn:
You will build a strong foundation in design principles, colour theory, materials, and lighting strategies used by working interior designers. You will learn how to plan and furnish rooms of every type, from kitchens and bathrooms to home offices and commercial spaces. The course also covers sustainable design, digital tools, and 3D visualisation so your work meets modern industry standards. You will develop the business and communication skills needed to manage clients, budgets, and vendor relationships professionally. By the end, you will have a complete portfolio and the confidence to take on real design projects.
How you study in practice Interior Decor Course
How you practise Interior Decor Course
For companies looking to train their teams
With Dedika for businesses, the course includes exercises and examples tailored to your company and its specific needs.
Course content
8 Chapters • 36 LessonsDuration between 4 and 360 hours (you decide)
Chapter 1HideHide detailsSee detailsFoundations of Interior Design
Foundations of Interior Design
Lesson 1 • Core Elements of Design
Introduces line, shape, form, texture, and pattern as the building blocks of any interior. Connects each element to practical decorating decisions.
Lesson 2 • Understanding Space and Scale
Examines how spatial volume, ceiling height, and furniture scale interact. Develops the ability to read and manipulate perceived room size.
Lesson 3 • Principles of Design
Covers balance, rhythm, emphasis, proportion, and unity as organising principles. Students apply each principle to evaluate and improve room layouts.
Lesson 4 • History and Evolution of Interior Decor
Traces design movements from antiquity to contemporary styles. Provides historical context that informs current aesthetic choices.
Chapter 2HideHide detailsSee detailsColour Theory and Application
Colour Theory and Application
Lesson 1 • Developing and Presenting Colour Palettes
Guides creation of cohesive multi-room palettes and professional presentation boards. Bridges theory to client-facing deliverables.
Lesson 2 • The Colour Wheel and Colour Models
Explains primary, secondary, and tertiary colours alongside additive and subtractive models. Establishes the technical foundation for all palette work.
Lesson 3 • Colour Harmonies and Schemes
Teaches complementary, analogous, triadic, and split-complementary schemes. Students select schemes that reinforce a room's intended atmosphere.
Lesson 4 • Psychology of Colour in Interiors
Explores emotional and behavioural responses to specific hues in living and work environments. Links colour choices to client lifestyle and room function.
Chapter 3HideHide detailsSee detailsMaterials, Finishes, and Textures
Materials, Finishes, and Textures
Lesson 1 • Sustainable and Eco-Friendly Materials
Introduces recycled, reclaimed, and low-emission materials and relevant environmental certifications. Prepares students to meet green design standards.
Lesson 2 • Hard Surface Materials
Surveys stone, tile, wood, concrete, and metal for floors, walls, and countertops. Evaluates durability, maintenance, and cost trade-offs.
Lesson 3 • Wall Treatments and Finishes
Examines paint sheens, wallcoverings, panelling, and decorative plaster. Teaches selection based on room use, humidity, and design intent.
Lesson 4 • Flooring Selection and Specification
Compares carpet, luxury vinyl, laminate, and area rugs for residential and commercial use. Guides specification based on traffic, moisture, and budget.
Lesson 5 • Soft Furnishing Fabrics
Covers upholstery, drapery, and bedding textiles including weave structures and performance ratings. Connects fabric choice to durability and style.
Chapter 4HideHide detailsSee detailsFurniture Selection and Arrangement
Furniture Selection and Arrangement
Lesson 1 • Furniture Styles and Construction
Reviews major furniture periods and construction methods including joinery and frame materials. Enables quality assessment and style matching.
Lesson 2 • Ergonomics and Human Dimensions
Applies anthropometric data and ergonomic standards to furniture selection. Ensures comfort and usability across diverse user groups.
Lesson 3 • Sourcing and Specifying Furniture
Covers trade resources, lead times, and specification sheets for residential and contract furniture. Prepares students for professional procurement.
Lesson 4 • Space Planning and Furniture Layout
Teaches bubble diagrams, traffic flow analysis, and scaled floor plan drafting. Produces functional layouts that balance aesthetics and movement.
Chapter 5HideHide detailsSee detailsLighting Design for Interiors
Lighting Design for Interiors
Lesson 1 • Lighting Plans and Documentation
Guides creation of reflected ceiling plans, fixture schedules, and photometric reports. Produces professional lighting documentation for contractor use.
Lesson 2 • Controls, Dimmers, and Smart Lighting
Covers dimmer compatibility, scene programming, and smart-home lighting integration. Enables students to specify controllable, energy-efficient systems.
Lesson 3 • Layers of Interior Lighting
Introduces ambient, task, accent, and decorative lighting layers and their roles. Teaches how layering creates flexible, dynamic interior environments.
Lesson 4 • Fundamentals of Light and Vision
Explains lumens, lux, colour temperature, and CRI as measurable lighting properties. Connects these metrics to human visual comfort and design goals.
Lesson 5 • Fixture Types and Selection
Surveys recessed, pendant, track, sconce, and floor lamp categories with specification criteria. Matches fixture type to ceiling height and room function.
Chapter 6HideHide detailsSee detailsWindow Treatments and Soft Furnishings
Window Treatments and Soft Furnishings
Lesson 1 • Measuring and Specifying Window Treatments
Teaches inside and outside mount measuring, fullness ratios, and workroom order forms. Prevents costly errors through precise specification practices.
Lesson 2 • Window Treatment Styles and Functions
Surveys curtains, drapes, Roman shades, blinds, and shutters by function and aesthetic. Connects treatment choice to light control and privacy needs.
Lesson 3 • Hardware, Rods, and Installation
Covers rod styles, bracket placement, and finial selection for drapery hardware. Ensures structural integrity and visual proportion in installation.
Lesson 4 • Pillows, Throws, and Decorative Accessories
Guides selection, sizing, and arrangement of pillows, throws, and tabletop accessories. Teaches layering soft goods to add depth and personality.
Chapter 7HideHide detailsSee detailsDesign Process and Project Management
Design Process and Project Management
Lesson 1 • Project Scheduling and Closeout
Develops Gantt-style timelines, installation day coordination, and punch-list management. Delivers polished project closeout and client handover.
Lesson 2 • Design Development and Specifications
Covers detailed drawings, schedules of finishes, and furniture specifications that guide procurement. Bridges concept approval to construction documentation.
Lesson 3 • Concept Development and Mood Boards
Guides ideation, concept statement writing, and mood board assembly for client approval. Translates abstract ideas into tangible visual direction.
Lesson 4 • Client Discovery and Brief Development
Teaches intake interviews, lifestyle questionnaires, and brief writing to capture client needs. Establishes a clear project scope before design begins.
Lesson 5 • Budgeting and Financial Management
Teaches budget creation, cost tracking, markup strategies, and invoice management. Ensures projects remain financially viable and transparent.
Chapter 8HideHide detailsSee detailsRoom-by-Room Design Application
Room-by-Room Design Application
Lesson 1 • Bedroom and Sleep Space Design
Focuses on bed placement, storage optimisation, and lighting for rest and wellness. Creates serene, functional personal retreats.
Lesson 2 • Bathroom and Spa-Inspired Design
Addresses fixture layout, tile selection, and ventilation in wet environments. Applies spa design principles to residential bathrooms.
Lesson 3 • Kitchen and Dining Space Design
Covers cabinetry layout, countertop selection, and dining furniture sizing for functional kitchens and dining rooms. Integrates workflow and aesthetics.
Lesson 4 • Home Office and Study Design
Designs productive workspaces with ergonomic furniture, acoustic control, and task lighting. Addresses hybrid home-office aesthetic integration.
Lesson 5 • Living and Family Room Design
Addresses seating arrangements, entertainment integration, and multi-generational use in main living areas. Balances comfort with visual cohesion.
Your valid completion certificate
This course is for you:
Aspiring designer: eager to turn a lifelong passion into a paying profession.
Homeowner: ready to renovate confidently without relying on hired designers.
Real estate professional: wanting to stage and style listings for faster sales.
Career changer: seeking a creative field with clear, practical entry points.
Freelancer: looking to add interior styling to an existing creative service offering.
Recent graduate: exploring design specialisations before committing to a single career path.
What our students say
Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to change platforms... I'm grateful for everything you do, I've already recommended you to other people...

I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.

I like the content and the way videos are presented and transcribed, which speeds up the process!

The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.

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