Knauf GifaFloor FHB 38mm – 600mm x 600mm Dry Screed Hollow Floor Panel

The Knauf GifaFloor FHB 38mm is a heavy-duty calcium sulphate dry screed and hollow floor panel engineered for demanding commercial environments where maximum rigidity, acoustic insulation and fire performance are essential. At 38mm thick, this premium gypsum fibreboard panel offers superior mass, delivering enhanced sound reduction and stability for raised floor systems, office refurbishments, data centres, and large-scale commercial fit-outs.

• A1 Fire Rated: Non-combustible gypsum fibre panel (EN 13501-1) for high-safety applications.
• Increased Thickness for Strength: 38mm construction provides exceptional surface rigidity.
• Superior Acoustic Performance: Very high mass helps reduce airborne and impact noise.
• Perfect for Hollow Floors: Designed for commercial voided floor and screed replacement systems.
• Low VOC & Certified: Complies with AgBB, French A+, IBR, and Eurofins Indoor Air Comfort Gold.
• Dry Installation: No curing time, no moisture, faster project turnaround.

Product Specifications

• Dimensions: 600mm x 600mm
• Thickness: 38mm
• Material: High-density gypsum fibre (calcium sulphate)
• Fire Rating: A1 – EN 13501-1
• Density: ≥ 1500 kg/m³ – EN 15283-2
• Acoustic Performance: Exceptional noise reduction due to increased mass
• Electrostatic Resistance: ≥ 1×10⁷ Ω – EN 1081
• Flexural Strength: ≥ 8.7 N/mm²
• Surface Hardness: ≥ 40 N/mm² (Brinell)
• Thermal Conductivity (λ): 0.56 W/(m·K)
• Thermal Resistance (R): Higher thermal performance than 25mm and 32mm FHB variants
• Suitable For: Hollow floors, dry screed systems, heavy-use commercial environments
• Installation Conditions: +10°C to +35°C, 45–75% RH
• Usage Conditions: -10°C to +35°C, 35–75% RH

Can be cut and machined using standard woodworking tools.
Manufactured with high recycled gypsum content, low VOC emissions, and full environmental certification.

Combine with our floor pedestals and system accessories for a complete installation package.

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Choose the Knauf GifaFloor FHB 38mm panel for high-load, high-performance commercial flooring with industry-leading acoustic and fire safety characteristics.