
Interior Designer Course
Transform your passion for beautiful spaces into a professional interior design skill set. This course covers everything from colour theory and space planning to lighting design, sustainable materials, and client management. Whether you're starting fresh or leveling up, you'll graduate with the knowledge and portfolio-ready deliverables to work confidently on real projects.
What you will learn:
You'll build a complete foundation in interior design, starting with core principles, design history, and professional vocabulary. From there, you'll master colour science, space planning, materials specification, and layered lighting design. You'll also learn how to source and curate furniture, produce construction documents, and manage projects from contract to closeout. Sustainable design strategies, wellness frameworks, and digital CAD tools are included. By the end, you'll have the skills to design functional, beautiful interiors for residential and commercial clients.
How you study practically Interior Designer Course
How you practise Interior Designer 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.
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 • History and Evolution of Interior Design
Traces design from ancient civilisations through modernism to contemporary practice. Establishes historical context that informs every subsequent design decision.
Lesson 2 • Design Vocabulary and Communication
Establishes precise terminology used across drawings, specifications, and client meetings. Accurate vocabulary reduces errors and builds professional credibility.
Lesson 3 • Core Design Principles and Elements
Introduces balance, rhythm, emphasis, proportion, and unity as the grammar of design. Students apply each principle to analyse and critique existing spaces.
Lesson 4 • Professional Scope and Career Paths
Maps the interior design profession including residential, commercial, and specialty sectors. Clarifies distinctions between interior design and interior decorating roles.
Chapter 2HideHide detailsSee detailsColour Theory and Application
Colour Theory and Application
Lesson 1 • Colour Science Fundamentals
Covers the colour wheel, hue, value, saturation, and temperature as measurable properties. Provides the scientific basis for all colour decisions made later in the course.
Lesson 2 • Psychology of Colour in Spaces
Examines how colour affects mood, perceived size, and occupant behaviour in interior environments. Connects psychological research to practical residential and commercial applications.
Lesson 3 • Colour Schemes and Harmonies
Teaches complementary, analogous, triadic, and split-complementary schemes with spatial examples. Students construct and evaluate palettes using structured harmony rules.
Lesson 4 • Developing and Presenting Colour Palettes
Guides students through building cohesive palettes and presenting them with physical and digital samples. Bridges colour theory to client-ready deliverables.
Chapter 3HideHide detailsSee detailsSpace Planning and Functional Layout
Space Planning and Functional Layout
Lesson 1 • Reading and Interpreting Floor Plans
Teaches standard architectural drawing conventions, scales, and symbols used in floor plans. Accurate plan reading is prerequisite to all layout and specification work.
Lesson 2 • Furniture Arrangement Strategies
Presents zoning, traffic flow, and conversation grouping methods for diverse room types. Students test multiple layouts before selecting the most functional solution.
Lesson 3 • Space Planning for Commercial Environments
Addresses occupancy loads, egress requirements, and workstation density in office and retail contexts. Applies regulatory minimums to produce compliant commercial layouts.
Lesson 4 • Producing Schematic Floor Plans
Guides students from bubble diagrams through refined schematic plans using manual and digital methods. Produces a documented layout ready for client review.
Lesson 5 • Human Factors and Ergonomics
Applies anthropometric data and ergonomic standards to determine clearances, reach zones, and furniture sizing. Ensures spaces accommodate the full range of human body dimensions.
Chapter 4HideHide detailsSee detailsMaterials, Finishes, and Specifications
Materials, Finishes, and Specifications
Lesson 1 • Wall and Ceiling Finishes
Covers paint, wallcovering, paneling, plaster, and acoustic ceiling systems with installation considerations. Connects finish choice to spatial acoustics, moisture resistance, and fire ratings.
Lesson 2 • Writing Finish Schedules and Specifications
Teaches the format and content of finish schedules, cut sheets, and written specifications used in construction documents. Accurate specifications prevent costly substitutions and field errors.
Lesson 3 • Textiles and Soft Furnishings
Examines fabric construction, fibre content, and performance ratings for upholstery, drapery, and bedding. Teaches flammability and durability standards relevant to commercial and residential use.
Lesson 4 • Flooring Materials and Selection
Compares hardwood, tile, carpet, vinyl, and concrete for durability, maintenance, and acoustic properties. Selection criteria are tied directly to occupancy type and client lifestyle.
Chapter 5HideHide detailsSee detailsLighting Design Principles and Practice
Lighting Design Principles and Practice
Lesson 1 • Producing a Lighting Plan
Guides students through placing fixtures on a reflected ceiling plan and writing a fixture schedule. Produces a coordinated lighting document ready for electrical contractor review.
Lesson 2 • Fundamentals of Light and Vision
Explains luminous flux, illuminance, luminance, and colour temperature as measurable lighting metrics. Grounds all subsequent fixture and control decisions in measurable performance data.
Lesson 3 • Lighting Controls and Energy Efficiency
Covers dimming, occupancy sensing, daylight harvesting, and scene programming as control strategies. Connects control design to energy codes and occupant comfort goals.
Lesson 4 • Fixture Types and Technologies
Surveys recessed, surface, pendant, track, and architectural fixtures alongside LED and smart-lamp technologies. Enables informed fixture selection based on beam angle, efficacy, and aesthetics.
Lesson 5 • Layers of Interior Lighting
Defines ambient, task, accent, and decorative layers and their combined role in spatial quality. Students analyse existing spaces to identify missing or imbalanced lighting layers.
Chapter 6HideHide detailsSee detailsFurniture, Art, and Accessory Curation
Furniture, Art, and Accessory Curation
Lesson 1 • Art Selection and Placement
Teaches scale, subject matter, framing, and hanging height principles for selecting and placing artwork. Connects art curation to the overall concept narrative and client identity.
Lesson 2 • Accessory Layering and Styling
Applies the rule of odds, vignette composition, and texture contrast to style shelves, tables, and surfaces. Transforms a furnished room into a finished, photographable interior.
Lesson 3 • Furniture Styles and Construction
Surveys period and contemporary furniture styles alongside joinery, frame, and upholstery construction methods. Enables quality assessment and style-matching across diverse project briefs.
Lesson 4 • Sourcing and Procurement Strategies
Explains trade-only, retail, and custom sourcing channels with lead times, pricing structures, and vendor management. Prepares students to build reliable supplier networks and manage procurement timelines.
Chapter 7HideHide detailsSee detailsInterior Design Documentation and Project Management
Interior Design Documentation and Project Management
Lesson 1 • Construction Drawing Sets
Teaches the organisation and content of floor plans, elevations, sections, and detail drawings in a full document set. Coordinated drawings reduce contractor errors and costly field changes.
Lesson 2 • Budget Management and Cost Control
Covers budget creation, allowance tracking, purchase order management, and invoice reconciliation throughout a project. Accurate financial tracking protects profitability and client trust.
Lesson 3 • Project Scheduling and Phasing
Introduces Gantt charts, milestone tracking, and trade sequencing to keep projects on time and on budget. Students build a realistic schedule for a mid-size residential renovation.
Lesson 4 • Contract Documents and Agreements
Covers letter of agreement, scope of work, fee structures, and variation-order processes used in professional practice. Protects both designer and client by establishing clear contractual expectations.
Lesson 5 • Site Observation and Project Closeout
Defines the designer's role during construction, punch list creation, and final installation coordination. Ensures the built result matches the approved design intent.
Chapter 8HideHide detailsSee detailsSustainable and Wellness-Centered Design
Sustainable and Wellness-Centered Design
Lesson 1 • Green Rating Systems and Certifications
Surveys major voluntary green building and interior rating frameworks, their credit categories, and documentation requirements. Enables designers to guide clients toward certification goals.
Lesson 2 • Biophilic Design Strategies
Applies nature-based patterns, natural materials, views, and living elements to reduce stress and improve occupant well-being. Translates biophilic research into actionable design moves.
Lesson 3 • Principles of Sustainable Interior Design
Defines embodied carbon, life-cycle assessment, and circular economy concepts as applied to interior material choices. Establishes the environmental rationale for every sustainable decision that follows.
Lesson 4 • Indoor Air Quality and Material Health
Addresses VOC emissions, off-gassing, and material transparency declarations for paints, adhesives, and furnishings. Protects occupant health through informed product specification.
Lesson 5 • Wellness Frameworks and Occupant Health
Introduces occupant-centered wellness rating systems covering air, water, light, acoustics, and thermal comfort. Students audit a project against wellness criteria and propose improvements.
Your valid completion certificate
This course is for you:
Aspirant-ontwerpers: gereed om 'n lewenslange estetiese belangstelling in werklike kundigheid om te skakel.
Career changers: bringing transferable skills from architecture, staging, or retail.
Huiseienaars: wat professionele-vlak oordeel soek voordat hulle 'n groot opknapping aanpak.
Decorators: seeking the technical foundation to expand into full design services.
Real estate professionals: aiming to advise clients on high-impact interior decisions.
Recent graduates: from art or design programmes looking to specialise in interiors.
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