---
title: "Commercial Interiors for Offices, Stores and Showrooms"
description: "Eleven years designing only places where people work or buy. See our offices, flagships and showrooms, and the results each one delivered for clients."
canonical: "https://formlio.com/documents/rotterdam-commercial-interior-design-portfolio"
locale: "en"
type: "document"
lastModified: "2026-11-11"
---

# Commercial Interiors for Offices, Stores and Showrooms

## Cover

### Built to earn

*Flagship store interior with a violet glass display wall*

*Pale oak and steel stair in an office atrium*

*Aubergine acoustic felt against brushed steel*

*Showroom with a single lounge chair at dusk*

*Pendant lights over an oak meeting table*

*Tussenmaat*

## What we believe

A beautiful office nobody comes to has failed. A flagship that does not sell is a billboard. We design for the number.

## The studio in numbers

### Eleven years. One kind of project.

We only design places where people work or buy. New offices, flagship stores, showrooms. No homes, no hotels. Saying no to the rest is why these numbers hold.

### Interiors opened since 2016

**61**

### Floor area delivered

**48,300 m²**

### Opened on planned date

**93%**

### People, one studio floor

**14**

## Selected projects

### Zeeglas headquarters, Rotterdam

*Open office floor with oak desks and aubergine acoustic panels*

### Voorloper flagship, Amsterdam

*Running store with an indoor test track*

### Dijkrijder showroom, Utrecht

*Bicycle showroom with a concrete test ramp*

### Duinvlier flagship, Antwerp

*Skincare store with a cast glass refill bar*

### Van Esch Terlouw offices, The Hague

*Glass walled meeting room with an oak table*

## Materials

### The palette is not decoration

Every finish here is in a building we have opened. Low-VOC, traceable to its maker, and specified so it can be taken out and used again.

*Aubergine acoustic wool felt*

*Cast recycled glass slab*

*Pale oak veneer beside brushed steel*

*Terrazzo with violet and grey aggregate*

*Perforated aluminium ceiling tile*

*Lilac recycled rubber flooring sample*

## The people

### Four people answer your calls

Fourteen of us work on Marconistraat. These four run the projects, and one of them is in every meeting you have with us.

### Jorinde Baks

**Founder and creative director.** Leads concept on every project. She drew fifteen flagship stores before her first office, which is why our offices have a front door worth walking through.

### Thijmen Oudshoorn

**Managing partner.** Runs programme and cost. He tells you in week two what your opening date will take, then holds it.

### Nadia el Amrani

**Head of retail.** Came from store operations, not design school. She plans the stockroom before the shop floor, and sales per square metre show it.

### Ruben Kwakkel

**Technical lead.** Owns the building model, lighting and acoustics. Every room is tested in VR before an order is placed.

## How we work

### Five stages. Nothing left to chance on site.

Each stage ends with something you can test, not a presentation to nod at.

### 1. Brief against a number

We agree the one figure the space has to move: attendance, sales per square metre, test rides. Two weeks, including a full day inside your current space.

### 2. A concept you can walk

Three weeks to a spatial concept in VR. Your team walks it before anyone falls for a render.

### 3. Developed design and specification

Eight weeks. One live model and one live FF&E schedule you can open at any time, with every lead time visible.

### 4. Procurement and build

We order against signed-off samples and sit in the contractor's weekly meeting. Bespoke joinery takes 10 to 12 weeks, so it is ordered first.

### 5. Open, then measure

We hand over, snag, and come back at twelve weeks to measure the number from stage one. You get the result either way.

## Clients

### Clients who checked the numbers

> They asked for our badge data before they asked about colours. Twelve weeks after the move, Thursday is fuller than Monday used to be, and I have stopped apologising for the lease.

— Marloes Hoekstra, Chief Operating Officer, Zeeglas

> The track was their idea and I fought it, because it cost us 60 m² of shelving. It is now the reason people come. Returns on pairs bought in store are a quarter of what we see online.

— Sven Meulenbelt, Co-founder, Voorloper

> Thijmen told us in week two that our date needed the joinery ordered before the lease was signed. We took the risk on his advice and opened on the day we had announced.

— Ingrid Zandstra, Retail Director, Duinvlier

## Book a call

### Bring us the number you need to move

Thirty minutes with Jorinde or Thijmen, on a call or at the studio. No pitch deck. Tell us what the space has to do and we will tell you whether we are the right studio for it.

We are taking briefs for projects starting from September 2027.

[Book a 30 minute call](mailto:nieuw@tussenmaat.studio?subject=Call%20about%20a%20new%20space)

### Tussenmaat

Marconistraat 52, 3029 AK Rotterdam

nieuw@tussenmaat.studio

+31 10 555 01 42