R.U.M. Designs

The R.U.M. collection is a family of circular office chairs designed by C.F. Møller Architects and made in Denmark by Wehlers. Every R.U.M. chair pairs genuine ergonomic comfort with an EPD-verified carbon footprint of 15.2 kg CO₂e per chair, so specifiers can choose a sustainable office chair without compromising on design, durability or seated comfort. R.U.M. is available as Original, Armrest, Sledge and Barstool, in Pharma Blue, Fisherman's Green and Keyboard Black, with an optional ReWool upholstery.

Circular office chairs made from recycled materials

R.U.M. is built from post-consumer waste - recycled injection pens, reclaimed fishing nets and e-waste - rather than virgin plastic. The result is a fully circular office chair that keeps material in use and out of landfill. Components are designed to be separated, repaired and replaced, so a single chair stays in service for years and re-enters the loop at end of life instead of becoming waste.

An ergonomic office chair, without the carbon

A sustainable office chair only earns its place if people actually want to sit in it. R.U.M. is built for all-day ergonomic support, with a responsive shell, considered seat geometry and a choice of Original, Armrest and Sledge bases to suit different workspaces and tasks. You get ergonomic seating that looks like Danish design, not like a compromise, at 15.2 kg CO₂e per chair.

The documented low-carbon choice for B2B

For procurement and CSRD reporting, R.U.M. comes with the numbers to back the claims: an EPD-verified carbon footprint, Scope 1-2-3 data and B-Corp certification. Where many manufacturers offer vague eco language, Wehlers publishes audit-ready sustainability data you can put straight into a tender or a Scope 3 disclosure - which is why R.U.M. is specified for pharmaceutical, corporate and public-sector projects at scale.

Circular by design, with professional take-back

Every R.U.M. chair is backed by a professional take-back programme. When a workspace is refitted, chairs are collected, refurbished and returned to use rather than scrapped - closing the loop that makes R.U.M. a true circular-economy office chair, not just a recycled one. It is sustainability you can measure at purchase and at end of life.

Explore the full R.U.M. range below, or request the sustainability data sheet for the exact EPD and CO₂ figures.