Work

Monument voor de wederopbouw (Monument for the Reconstruction) was a temporary installation on the ground of E55 in Rotterdam. On May 18, 1955, Queen Juliana gave a speech at the opening of the E55 exhibition in Rotterdam, in which she expressed gratitude for the progress made in the ten years since the Second World War and the North Sea Flood of 1953. The exhibition, also known as the National Energy Event, aimed to showcase the Dutch people's industriousness and zest for life as they rebuilt their country. 

Commissioned by Municipality Amsterdam. Placed in Sarphatipark, Vondelpark, Woestduinstraat, Gijsbrecht van Aemstelpark and Martin Luther Kingpark.

Circa 1954. Designed for Het Spectrum, Bergeijk.

In 2015 Spectrum Design took the IJhorst table back in production. For more information about availability, check the website: Spectrum Design

After the dissolution of CoBrA, Stephen Gilbert, a fellow member of the movement, went on to experiment with abstract shapes in space that resulted in metal space constructions. Constant was going through a similar development and it was Gilbert who motivated him to start working in 3D — the result was this work. It led to an intensification of their contact. 

Edition of 100, designed for Het Spectrum, Bergeijk.

In 2015 Spectrum Design took the IJhorst table back in production. For more information about availability, check the website: Spectrum Design

The Color design for the installation Kleurenharmonie in uw woning (Color harmony in your house) at warehouse De Bijenkorf. Co-op with Gerrit Rietveld, 1954

Reconstruction of the design suggestion by Gerrit Rietveld and Constant at the installation Kleurenharmonie in uw woning (Harmony of color in your home) for the exhibition Constant. Color + Space at the Cobra Museum for Modern Art in Amstelveen in 2016.
The installation was part of the exhibition Ons Huis – Ons Thuis at department store de Bijenkorf in Amsterdam, February 1954.