The Confident Designer

Learn to design, build, and present interior spaces in SketchUp—with clarity and confidence.

A beginner-friendly, design-led course for creating refined 3D interiors.

Interior view of a modern living room with a large beige tufted sofa, a black armchair, and a potted plant with broad green leaves. There are doors with black frames, a decorative chandelier, and a side table with a candle.

€347 — one time payment

No prior experience needed · Self-paced (~6 weeks)


Design with clarity and confidence

Experience the process behind creating complete interior concepts — from structure and styling to fully presented 3D interiors.

This course is part of The Interior Icon.

A design-led approach to understanding interiors—
and translating them into structured, intentional 3D spaces.

The Confident Designer is your foundation.

A woman with brown hair and light skin wearing a white T-shirt sitting at a wooden desk working on a black laptop with a black notebook, a white earbud case, and printing materials nearby.

You have strong creative ideas, but they don’t always translate clearly into your work.

In your mind, everything is clear.
But when you try to build it in SketchUp—it feels harder to express.

So what happens?

Your designs don’t fully reflect your ideas
You spend more time figuring things out than designing
Your work doesn’t feel as refined as you imagined

Over time, this becomes frustrating:

“Why does this look so much better in my head than in my model?”

The issue isn’t your creativity.
It’s the lack of a clear structure for turning ideas into design.

The Confident Designer gives you a clear and structured way
to approach interior design in SketchUp.

3D rendering of a modern open-plan living room and kitchen with a large window, beige curtains, a potted plant, a couch, a recliner, a dining table with chairs, wooden cabinets, a marble backsplash, and kitchen appliances.

You’ll learn how to:

understand the fundamentals of SketchUp without overwhelm

build interior spaces step-by-step

make intentional design decisions

present your work in a clean and professional way

So you’re not just modeling interiors—you’re designing and communicating them.

From first model to
confident interior design

This course takes you from understanding the basics of SketchUp to creating complete interior spaces with structure and clarity.

You’ll move from:

confusion → clarity

trial and error → structured process

unfinished ideas → intentional design

Floor plan of a living room with dimensions, showing a sofa, a small table, a piano or desk, a door, and a potted plant.
Living room with large windows, beige curtains, a fireplace, a white tufted ottoman, indoor plants, and modern lighting fixtures.

What you’ll learn

SketchUp fundamentals made simple

How to build full interior spaces step-by-step

Furniture placement, floor plans & spatial layout

How to add materials, lighting

How to present your designs professionally

See the process

This is a digital illustration of a modern kitchen with a dark wood and light color palette. There are cabinets, a built-in oven, a stovetop, and a small countertop with a coffee machine. A kitchen knife and a cutting board are visible, along with a decorative shelf holding small objects. A large window with wooden blinds and a contemporary ceiling fan are also included in the room.
A minimalistic black and white line drawing of an interior space, showing a corner with cabinets, a table with a chair, possibly a kitchen area, and a window with curtain.
Modern kitchen with white cabinets, stainless steel stove and oven, gray backsplash, and a dining table with four wooden chairs. Large windows with blinds let in natural light.
A hanging white paper lampshade with a light bulb inside, above a wooden dining table surrounded by gray upholstered chairs in a room with beige walls.

Design is a process — not a guess.

This course is for you if…

✔ You want to learn SketchUp from scratch

You struggle to turn ideas into 3D designs

You want your work to feel more intentional

You are interested in interior design and visual thinking

You want a structured way to learn

An isometric view of a living room and dining area showing a beige sectional sofa, wall-mounted TV, fireplace, and a small dining table with two chairs.

No prior experience needed.

A structured learning path

Module 1 - Explore the Essentials
Learn the essentials and create your first 3D.

Module 2 - Building Interior Spaces
Start structuring rooms and layouts with clarity.

Module 3 - Styling your signature look
Add personality through materials, colors, texture, and furniture.

Module 4 - Presentation & Refinement
Learn how to present your work clearly and professionally.

Open laptop displaying a 3D interior design of a living room and kitchen with furniture and decor details on a black background, with interior design plans and concepts on the side.

Self - paced, so you can learn at your own rhythm.

Created by
Stéphanie Duinmaijer

The Confident Designer is created by Stéphanie Duinmaijer, founder of The Interior Icon.

“With a focus on clarity, structure, and refined design, this course is was designed to help you build a strong foundation in interior design and SketchUp.“

A woman with short dark hair sitting on a beige sofa, holding a laptop, in a room with cream walls and a gold-colored curtain.

Design is not just creation — it’s communication

Many people learn how to model in SketchUp.

Very few learn how to present their work clearly.

In this course, you’ll also learn how to:

✔ structure your visuals

✔ improve clarity in presentations

✔ make your work easier to understand

This is what makes designs feel professional.

Not sure yet?

Start with the first module of the course and experience the process before committing.

You’ll create your first 3D design in SketchUp and understand how the system works.

→ Try the first module

A silver laptop showing 3D design software with a wooden table, white table frame, and outlined furniture models on the screen.
Screenshot of drawing application tools menu featuring icons labeled select, orbit, pan/hand tool, undo, line, rectangle, push/pull, erase, move, duplicate, rotate, offset.

What is included?

✔ Full access to The Confident Designer

Step-by-step SketchUp training

Presentation guidance

Guidance on setting up SketchUp (free to get started)

Self-paced learning (~6 weeks)

Clear onboarding to get you started

Guidance for your next steps after the course

Support resources and answers to common questions

Start building your foundation in SketchUp

Learn to design interiors with structure, clarity, and confidence.

3D rendering of a modern living room with sectional sofa, large plant, curtains, and kitchen area with marble countertop and breakfast table.

€347 — one time payment

No prior experience needed · Instant access .
Self-paced learning (~6 weeks)

Questions?

  • No, this course is designed for complete beginners.

  • It’s self-paced and designed to be completed around 6-8 weeks.

  • No, you can start learning by setting up a Free account.

  • Yes - you’ll build the foundation to design and present complete spaces. You won’t learn how to build a whole house or apartment.

  • Yes, you can start right after enrolling. With a lifetime access.

  • You don’t need a specific computer.

Start designing with clarity

If you’re ready to move beyond random tutorials and finally understand how to approach interior design in SketchUp — this is your starting point.

→ Join The Confident Designer

€347 — one time payment