• Sould Wooden Joints installation in dining room
  • Sould Wooden Joints Detail of wooden joints
  • Sould Wooden Joints angled view with detail of joints
  • Sould Wooden Joints installations in multi-panel configurations

Color Guide

EG 0001 Natural Eelgrass

Søuld Wooden Joints

Søuld Wooden Joints combines the rich texture of eelgrass with the natural beauty of beechwood. Clever wooden accents punctuate sound-softening wall panels, creating visual interest with depth and patterning. Create custom floating or wall-to-wall installations with standard square panels crafted from eelgrass, which natively grows along the Danish coast. (Images courtesy of Jeudan and Søuld)

  • Content Søuld Acoustic Board FR (Eelgrass)
  • Panel Size 1’-8” x 1’-8” (2.54 x 2.54 cm)
  • Thickness 11/16 in (1.8 cm)
  • Thickness Tolerance 1/16 in (2 mm)
  • Edge Square
  • Custom Extension Panels smaller the standard size must be quoted for wall to wall installations
  • Durability Contract or residential
  • Lead Time Made to order and certain lead times will apply
  • Installation Panels attach to wall surface with adhesive and wooden joints. Allow to acclimate on site for 48 hours. It is important that the surface be solid, clean, dust-free, and level. Refer to Søuld Wooden Joints Installation Instructions for complete guidance.
  • Maintenance Gently clean Søuld eelgrass products with a soft duster to remove dust and particles. If a deeper clean is necessary, use a vacuum cleaner with a brush attachment, sweeping lightly across the surface. Do not use rough cleaning equipment, water or commercial cleaners that could alter the appearance or texture of the material. Refer to Product Maintenance and Cleaning Guide for detailed care instructions.
  • Variation Eelgrass is a natural material and color variation and inclusions on the surface are evidence of the 100% natural origin of the material. Product color is only indicative, as it is not possible to assure consistency of color in a natural product due to the natural color of the Eelgrass plant. Color matching cannot be guaranteed between individual panels and expect color variation beyond the normal commercial range.
  • Environmental Søuld Acoustic Board FR is 100% recyclable and is fully circular – when no longer in use, can be returned to become a second generation of Søuld Eelgrass product
  • Contains no formaldehyde, no chemical irritants, and free of harmful substances
  • Søuld Acoustic Board contributes to LEED©


Søuld is a Danish company providing eco-friendly and sustainable building materials made from eelgrass. Founded in 2010 by architects Tobias Øhrstrøm and Pi Fabrin; engineers Gunnar Agerskov and Kirsten Lynge; and eelgrass thatcher Henning Johansen, Søuld provides designers and architects with a renewable and recyclable alternative to traditional acoustic panels. Their use of eelgrass as a building material carries on a centuries-old practice deeply rooted in Danish culture.


  • Acoustics ASTM C 423: NRC – 0.65, SAA – 0.63
  • Colorfastness to Light Class 4.5–5 (72 hours)
  • Flammability ASTM E84: Class A
  • CAN ULC S102.2-18: FS: 5 / SDI: 0
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