Søuld

Name: Søuld
Address: Hermodsgade 24, Copenhagen, 2200, DK
Telephone: +4593805810

Acoustic products made from eelgrass for healthy living.

18/08/2026

Søuld has a negative CO2 footprint in the production phase (A1-A3) of up to -3,6 kg CO2eq/m2

Eelgrass binds large amounts of carbon during its growth and if left to decompose, it would release CO2 back into the atmosphere. By safely storing this carbon in durable building materials, Søuld’s products act as carbon sinks, resulting in a highly positive climate impact.

Søuld’s products are made in Denmark using manufacturing practices that generate almost zero waste and have low energy consumption. Both Søuld’s products and processes are designed to be fully circular, aiming for the lowest possible environmental impact.

Learn more at sould.dk/material and download our EPD

14/08/2026

No two Søuld panels are exactly alike.

Made from naturally washed ashore eelgrass, our acoustic panels display subtle variations in colour, texture and fibre distribution. From muted greens to warm browns, every panel reflects the journey of the eelgrass—shaped by the sea, the seasons and the natural lifecycle of the plant.

These variations are not imperfections, but an inherent quality of the material itself. Rather than concealing them, we preserve them, allowing every panel to express its own unique character and coastal origin.

It is this natural variation that gives eelgrass its depth, tactility and enduring character.

07/08/2026

The story of Søuld begins on the Danish island of Læsø, where people developed a unique way of building with eelgrass more than 400 years ago. In a landscape with few natural resources, naturally washed ashore eelgrass became an abundant building material for the island’s distinctive seaweed houses.

Women collected the eelgrass from the shoreline, dried it and wove it into thick thatched roofs around simple timber frames. Over time, the roofs compacted into a dense, durable layer that offered natural insulation, weather resistance and remarkable longevity, with some surviving for more than 300 years.

By the beginning of the 20th century, around 250 eelgrass-thatched houses shaped the landscape of Læsø. As modern construction methods emerged, the tradition gradually disappeared until a renewed interest in the material led to the restoration of the remaining seaweed houses and the rediscovery of traditional knowledge.

Today, Søuld builds on this heritage by combining centuries of material knowledge with contemporary research and technology. The result is high-performance acoustic materials that bring the remarkable qualities of eelgrass into today’s architecture—preserving an important part of Danish building culture while giving the material a new purpose.

04/08/2026

In the vibrant setting of Goldfinch, acoustics play an essential role in shaping the dining experience.

Integrated into the restaurant’s bar area, Søuld Acoustic Panels help absorb sound in one of the busiest parts of the space, creating a more balanced acoustic environment where conversations can unfold comfortably alongside the energy of the restaurant.

Precisely carved grooves allow the eelgrass panels to bend gently around the corner of the bar, creating a continuous architectural expression that highlights the material’s natural tactility and versatility. Soft curves, warm textures and high acoustic performance come together to support conversation, comfort and a welcoming atmosphere throughout the space.

Client:
Product: Acoustic Mats FR by Søuld
Photography by:

27/07/2026

Gentle processed eelgrass in the process of becoming Søuld products.

After naturally drifting ashore, the eelgrass arrives at Søuld’s production facility in round bales, where it is analysed, sorted and classified according to colour and quality. The long eelgrass leaves are then rinsed to remove stones and natural impurities before being shredded into shorter, standardised fibres that ensure consistent aesthetic and mechanical properties.

Each fibre carries the marks of its origin. Variations in colour, texture and form reflect the natural character of the material and the coastal landscapes from which it comes.

Through careful processing, a material shaped by wind, waves and time is transformed into contemporary acoustic solutions — preserving the tactile qualities, beauty and inherent performance of eelgrass while preparing it for a new life in architecture and design.

24/07/2026

From shoreline to living space.What begins as eelgrass naturally washed ashore on the Danish coast is transformed into acoustic materials that bring calm, comfort and natural tactility into architecture.In this summerhouse by , Søuld Acoustic Boards FR help create a balanced acoustic environment while complementing the warmth of the wood floors. The result is a home where natural materials, sound and architecture exist in harmony.”We did not want to compromise on the acoustics of the house. With Søuld, we were able to bring nature indoors and achieve high acoustic comfort, while the colours and textures of the wood and eelgrass complement each other beautifully.”Architect: : Søuld Acoustic Boards FRFloors: Photography: Søuld /

21/07/2026

Every year, eelgrass follows the rhythm of nature.

Growing in shallow coastal waters, eelgrass meadows provide habitat for marine life, help stabilise sediments and contribute to healthy coastal ecosystems. As autumn storms arrive, the leaves naturally detach from the plant and drift ashore without human intervention.

At Søuld, we gently collect the freshly washed ashore eelgrass and dry it using only sun and wind. Through careful processing, this abundant natural material is transformed into high-performance acoustic products that preserve its unique texture, character and inherent qualities.

A material shaped by the sea. Reimagined for contemporary architecture.

16/07/2026

Designed to support contemporary learning and collaboration, the newly renovated breakout spaces at Roskilde University offer students flexible environments for study, discussion and knowledge-sharing.

Throughout the interior, Søuld Acoustic Mats made from eelgrass help create a balanced acoustic environment where multiple groups can work and exchange ideas simultaneously. The combination of natural wood and eelgrass introduces warmth, tactility and material depth, while rhythmic wooden elements and the soft texture of the eelgrass panels contribute to a calm and welcoming atmosphere.

The result is a series of welcoming learning environments where openness, flexibility and acoustic comfort come together to support both focused work and informal interaction.

Architect:
Product: Acoustic Mats by .dk
Client:
Photography: Søuld /

13/07/2026

For centuries, eelgrass has demonstrated remarkable qualities.

Along the coastlines of Denmark, it has been used to create roofs capable of lasting for hundreds of years. Naturally resistant to moisture, mould and fire, eelgrass is a material shaped by the conditions of the sea.

Today, we continue to explore its potential in contemporary construction.
One of the qualities that makes eelgrass particularly interesting is its ability to bind and store carbon. Through our third-party verified Environmental Product Declaration (EPD), we can document that our acoustic panels store more carbon than is emitted during raw material sourcing, transport and manufacturing (A1–A3). For full EPD, visit sould.dk

At Søuld, transparency matters. We provide architects, designers and clients with reliable, independently verified data about our products’ environmental performance.

Natural materials can play an important role in the transition towards lower-impact construction. But only when their environmental performance is measured, verified and openly shared.

Alongside our Cradle to Cradle Products Innovation Institute® Gold certification, our EPD forms part of Søuld’s commitment to transparency and documentation.

09/07/2026

Designed by Signe Hytte for COMPOSED MATTER, STOA explores the relationship between structure, rhythm and materiality.

Inspired by the classical Greek colonnade, the collection combines integrated Søuld eelgrass panels with brushed aluminium surfaces. The contrast between soft, tactile eelgrass and refined metal creates a balanced expression where warmth and precision coexist.

By carving grooves into the eelgrass panels, the material becomes flexible enough to bend into soft, rounded forms. This technique makes it possible to create the curved geometry beneath the tabletops, transforming a flat acoustic panel into a sculptural element while highlighting the versatility of the material.

The collection includes a coffee table, square coffee table, console table and pedestal table — each conceived as a study in repetition, proportion and quiet presence.

Design by:
Created for COMPOSED MATTER, curated by
Products included: Acoustic Mats by .dk
Photo by: and

Adresse

Hermodsgade 24
Copenhagen
2200

Telefon

+4593805810

Internet side

http://www.sould.dk/

Underretninger

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