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Interior Designer interview questions and how to answer them

An interior design interview is really a portfolio review with a few traps built in. The principal wants to see how you think when the pretty part is over: the change order, the backordered chair, the clearance that doesn't work. Prepare for those moments and the rest of the conversation gets easy.

12 questions7 minute read

Part 1

1.Walk me through one project in your portfolio from the first brief to install.

Why they ask

It's the question every interview starts with, and it shows them your real role, how you organize a story, and whether you understand the whole project or only the concept phase.

How to answer

  • Open with the client, the space and the one problem the brief was really about
  • Say plainly which parts you drew, specified or managed yourself
  • Pick one decision and explain the reasoning behind it, including what you rejected
  • Mention one thing that went wrong during construction and how it got resolved
  • Close with how the client uses the space now

2.A client approves the finish board, then changes their mind after the order is placed. What do you do?

Why they ask

This happens constantly, and it costs the firm money and time. They want to know you'll protect the schedule and the fee without damaging the relationship.

How to answer

  • Find out what's behind the change before reacting to it
  • Check what's already ordered, what's cancellable and what restocking fees apply
  • Lay out the options with cost and schedule impact in writing
  • Get the client's decision signed off and loop in the project manager on any added fee

3.Tell me about a time a key item was backordered or discontinued close to install.

Why they ask

Lead times break schedules on nearly every project. They're listening for calm, practical problem solving with dealers and vendors.

How to answer

  • Describe the item and why it mattered to the design
  • Explain how you found out and how fast you told the client and contractor
  • Walk through the substitutes you sourced and how you checked they met the spec
  • Say what you changed afterward, such as confirming stock earlier or tracking orders more closely
4.How do you check your plans for accessibility and code issues?

Why they ask

Commercial work lives or dies on clearances, egress and accessible routes. A designer who misses these creates rework for the whole team and a problem at permit review.

How to answer

  • Name the checks you run as you draw: door clearances, turning space, counter heights, exit paths
  • Mention the references you use, such as the ADA standards and the local code the architect confirms
  • Say that codes vary by jurisdiction and you confirm which ones apply on each project
  • Describe how you coordinate with the architect of record or code consultant
5.How do you set up and manage a construction document set in Revit?

Why they ask

Many firms work in Revit, and they need to know whether you'll produce clean sheets on day one or need weeks of hand-holding.

How to answer

  • Explain how you organize views, sheets and schedules from the firm template
  • Mention finish and furniture schedules tied to the model so they update together
  • Talk about how you handle redlines and revision clouds
  • Be honest about gaps, and say how you're closing them

Part 2

6.How do you keep an FF&E budget from creeping?

Why they ask

Furniture and finishes are where budgets quietly blow up. They want someone who tracks money as carefully as they track style.

How to answer

  • Set the budget by area or category at the start, with the client's agreement
  • Keep a live spec sheet with pricing, freight and install included
  • Offer alternates at the same time as the first choice, not after the quote comes back
  • Flag overages early instead of hoping savings appear elsewhere
7.How do you choose materials for a high-traffic commercial space compared with a home?

Why they ask

It shows whether you understand performance, not just appearance: durability, cleaning, fire ratings and warranty.

How to answer

  • Start with how the space is used and how it'll be cleaned
  • Mention checking abrasion ratings, fire performance and the manufacturer's contract rating
  • Talk about maintenance conversations with the facilities team
  • Contrast that with residential, where comfort and personal taste weigh more
8.The architect's ceiling plan conflicts with your lighting layout. How do you handle it?

Why they ask

Interior designers work inside other people's drawings. They're checking whether you coordinate or dig in.

How to answer

  • Mark up the conflict clearly in Bluebeam or on the drawing set
  • Understand the architect's or engineer's constraint before pushing your option
  • Bring a proposed fix to the coordination meeting instead of only the problem
  • Document the agreed change so it shows up on the next issue
9.How would you present a concept to a client who can't read floor plans?

Why they ask

Most clients can't picture a space from a plan. Firms need designers who can sell an idea without confusing people.

How to answer

  • Use renderings, a walkthrough or a physical sample board alongside the plan
  • Tell the story of how they'll move through the space on a normal day
  • Keep the options few and clearly different
  • Ask what they're reacting to before defending the design
10.Tell me about a mistake of yours that made it into the field.

Why they ask

Everyone has one. They want honesty and proof that you fix things fast and learn from them.

How to answer

  • Name the mistake plainly, like a wrong dimension or a missed spec detail
  • Explain how it was caught and who you told first
  • Say how it got fixed and what it cost
  • Describe the check you added to your own process afterward

Part 3

11.How do you juggle several projects at different phases?

Why they ask

Designers often carry a concept job, a documentation job and an install at once. They need to see that you won't drop one.

How to answer

  • Describe how you plan your week around deadlines and site visits
  • Mention the tools you use to track tasks and billable time
  • Explain how you raise it when deadlines collide
  • Give a short example of a crunch week you handled
12.Why do you want to design for our firm?

Why they ask

They want to know you've looked at their actual work and aren't sending the same answer to every studio.

How to answer

  • Name a specific project of theirs and what you noticed about it
  • Connect their project type to the work you want more of
  • Say what you'd bring from your own experience to that work

Questions to ask them

Ask at least two. It shows you're picking them too.

  • How is a typical project team set up here, and who would I report to day to day?
  • How much of my time would be concept and presentation work versus construction documents and site visits?
  • Which software and templates does the studio work in, and how do new designers learn the firm standards?
  • How does the firm support people who want to sit for the NCIDQ?
  • What does a designer who's done well in their first year here look like?