This Swedish Startup Turns Paper Back into Wood

By Will Speros
Metropolis Magazine
February 10, 2025
Category: Wood, Paper & Green Building
Region: International

A designer and former technology scout, PaperShell cofounder and CEO Anders Breitholtz sought to unlock solutions for steering the design industry toward a circular economy. …Following some exploration with advisory service Material ConneXion, Breitholtz teamed up with fellow PaperShell cofounder Mathieu Gustafsson in 2018 to begin tests on a new paper alternative. PaperShell’s material possesses a superior strength to wood through intensive compression molding that merges and cross-links paper fibers and bio-resin. The process reintegrates hemicellulose into the substrate to create a dry prepreg that is then cut into blanks and stacked under a large steel press for shaping and trimming. Production waste is turned into biochar as well, setting the basis for a circular economy. “You get a component which is 100 percent biogenic. There’s no fossil carbon inside. It’s just natural materials,” Breitholtz says. “By pressing it really, really hard the paper sheets become a homogeneous material.” 

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