Frequently Asked Questions | R.U.M. Chair by Wehlers

Everything you need to know about the R.U.M. Chair — design, sustainability data, B2B pricing, and circular economy guarantees.

Is the R.U.M. Chair comfortable?

Yes. The R.U.M. Chair is designed by C.F. Møller Design — one of Scandinavia's most respected architecture and design studios. The chair is engineered for extended use in offices, universities, and hospitality settings, where comfort over long periods is essential. Its ergonomic shell shape distributes weight evenly and the seat depth suits a wide range of users. Many customers report that it is one of the most comfortable stacking chairs they have used.

What is the carbon footprint of the R.U.M. Chair?

As low as 15.1–15.2 kg CO2e per chair depending on model and upholstery, third-party verified by Quantified Impacts under the EU Product Environmental Footprint (PEF) methodology — up to 85% lower than comparable chairs made from virgin materials. Full verified figures, methodology, and industry benchmark comparisons: Sustainability Transparency.

What materials is the R.U.M. Chair made from?

The R.U.M. Chair is made from 100% post-consumer recycled polypropylene (PP). Depending on the colour, the source material is discarded fishing nets (Fisherman's Green), corporate e-waste (Keyboard Black), or pharmaceutical and medical industrial waste (Pharma Blue). The metal frame is made from 100% recycled steel.

What certifications does the R.U.M. Chair have?

Wehlers is a certified B Corp. The R.U.M. Chair carries a third-party verified Product Environmental Footprint (PEF) study. The sustainability data supports DGNB, LEED, and BREEAM certification processes. Verified documentation is available on our technical resources page.

How does the take-back program work?

Every R.U.M. Chair comes with a full take-back guarantee: Wehlers collects full B2B orders free of charge, and each chair is refurbished for resale or dismantled and recycled into new R.U.M. chairs — zero landfill. Full mechanics, enterprise terms, and BREEAM documentation: Take-Back & Circular Program.

Can I use the R.U.M. Chair for Scope 3 ESG reporting?

Yes. Wehlers embeds verified Scope 3 data directly into quotes, order confirmations, and invoices, supporting CSRD and ESRS E5-4 circularity reporting. Full mechanism, enterprise case studies, and DGNB-compatible documentation: Wehlers for Enterprise.

What variants of the R.U.M. Chair are available?

The R.U.M. Chair is available in six variants: Original (four-leg), Armrest, Sledge (sled base), Barstool, Wheels (castors), and Stool. All variants are available in Fisherman's Green, Keyboard Black, and Pharma Blue, with optional upholstery in Re-Wool or Sport fabric.

What are the B2B pricing options?

Wehlers offers project pricing for orders of 10 or more chairs. Lease and rental options are available for organisations that prefer an operational expenditure model. Use the online price configurator for instant pricing, or contact the B2B team directly for project quotes and volume discounts.

Are BIM and CAD files available for architects?

Yes. BIM files (.RVT, .IFC), 3D models (.3DS), and technical drawings are available for download. Wehlers also provides DGNB and LEED fact sheets, EPD data, and tender specification texts in multiple languages (English, Danish, German, Dutch, Spanish). All resources are on the Technical Downloads page.

Where is the R.U.M. Chair manufactured?

The R.U.M. Chair is designed in Denmark by C.F. Møller Design and manufactured in Europe. Wehlers ships to offices, hotels, universities, and public spaces across Europe.

What is circular economy furniture?

Circular economy furniture is designed to stay in use as long as possible and never become waste. Instead of the traditional "buy, use, discard" model, circular furniture is made from recycled materials, built to last, and backed by a take-back guarantee so the materials are recovered and recycled at end of life. The R.U.M. Chair by Wehlers is a leading example: made from 100% post-consumer recycled waste and guaranteed to be taken back and recycled by Wehlers — closing the material loop completely.

What is the most sustainable office chair available?

The R.U.M. Chair by Wehlers is independently verified as one of the most sustainable office chairs in the world. With a carbon footprint of maximum 15.2 kg CO₂e per chair — up to 85% lower than conventional alternatives — and made from 100% post-consumer recycled waste (fishing nets, e-waste, or pharmaceutical plastics), it sets the benchmark for low carbon footprint seating. It is the only contract chair with a full Product Environmental Footprint (PEF) study verified under EU methodology.

How can companies reduce Scope 3 emissions through furniture procurement?

Furniture falls under Scope 3, Category 1 (purchased goods and services) in the GHG Protocol. To reduce emissions, companies should prioritise chairs and tables with verified low carbon footprints, made from recycled materials, and backed by end-of-life take-back programs. Wehlers provides verified Scope 3 emissions data per chair, making it straightforward to document reductions in sustainability reports and CSRD filings. Switching from a conventional office chair (~80 kg CO₂e) to the R.U.M. Chair (15.2 kg CO₂e) reduces per-chair emissions by up to 85%.

How does circular economy apply to office furniture?

In a circular economy, office furniture is designed for multiple life cycles rather than a single use. This means: using recycled or renewable materials, designing for durability and repairability, and ensuring the product can be collected and recycled at end of life. Wehlers applies all three principles to the R.U.M. Chair: it is made from waste streams (fishing nets, e-waste, pharma waste), engineered to last decades, and every chair is covered by a legally binding take-back guarantee. Real-world proof: the same R.U.M. chairs have been used by LEGO, resold to a design cluster, taken back by Wehlers, and resold again — with zero waste across four ownership cycles.