Stiga RM
Sonablock Wood Wool Acoustic Panel 25mm · 1.5mm fibre
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PRICE PER SIZE:
- 600 × 600 mm - €9,72/sheet (€27,00/m²)
- 1200 × 600 mm - €19,44/sheet (€27,00/m²)
- 2400 × 600 mm - €38,88/sheet (€27,00/m²)
Prices are per m² excluding VAT. Minimum order: 1 pallet (30.96 m²) - orders below 1 pallet incur a +€255 surcharge. Contact us for project quotes, custom sizes, or edge profile options.
Natural wood wool cement board (WWCB) acoustic panels, also known as fibrolite, made from sustainably sourced wood fibres bound with Portland cement. Sonablock Fiber delivers genuine sound absorption, Euroclass B-s1,d0 fire rating, and a distinctive tactile texture for demanding commercial and public interiors. A sustainable, EU-made alternative to Heraklith and Troldtekt wood wool panels.
Manufactured by Stiga RM - a PEFC-certified Latvian producer. Tested by RISE Research Institutes of Sweden and classified by an EN ISO/IEC 17025 accredited laboratory.
Acoustic Performance
- Sound absorption coefficient αw 0.60 (Fiber 1.0 mm, ODS 200 mm) - Absorption Class C
- Sound absorption coefficient αw 0.65 (Fiber 1.5 mm, ODS 200 mm) - Absorption Class C
- Tested per SS-EN ISO 354 / SS-EN ISO 11654 by RISE Research Institutes of Sweden (report O100282)
Fire Safety
- Euroclass B-s1,d0 per EN 13501-1:2018
- Low smoke production (s1) · No flaming droplets (d0)
- Classified K25/2026 by accredited Latvian testing laboratory
- Valid for wall and ceiling installations with and without air gap
Technical Specifications
| Thickness | 25 mm |
| Fibre width | 1.0 mm / 1.5 mm / 2.0 mm |
| Panel sizes | 600×600 mm · 1200×600 mm · 2400×600 mm |
| Weight | 11 kg/m² (natural) · 10.65 kg/m² (painted) |
| Thermal conductivity | λ 0.067–0.070 W/m·K (EN 13168) |
| Density | 410 kg/m³ (1.0 mm) · 445 kg/m³ (1.5 mm) |
| Max. relative humidity | 90% RH |
| Edge profiles | B0, B5, B11, A24, E24, E24/90, C |
| Designation | WW-EN13168-L4-W2-T2-S2-P2-Cl3 |
Available Colours
Natural (unpainted) · White RAL 9010 · Light Grey RAL 7035 · Dark Grey RAL 7004 · Black RAL 9011
Custom RAL / NCS colours available on request - contact us for a quote.
Certifications
- CE marking per EN 13168:2012+A1:2015
- Declaration of Performance (DoP SB 1.1)
- PEFC Chain of Custody (BMCERT-PEFC-COC-00175, valid to Feb 2028)
- Environmental Product Declaration - EPD-IES-0031288 (valid to 2031)
- No added formaldehyde · REACH compliant
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