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Knauf GIFAfloor FHB Hollow Floor Pedestal System

Name: Knauf GIFAfloor FHB Hollow Floor Pedestal System
Brand: Access Floors Distribution
SKU: o9F1FeKhWf8qJSRS7om7zK

Verified by manufacturer 22 days ago

FHB 25 - Pedestal System (1200 x 600 mm)

Access Floors Distribution

Product certifications:

Indoor Air Comfort – Eurofins
Certificate type
EPD
Certificate type

Load-bearing tongue & groove gypsum fibreboard hollow floor system installed on pedestals. A1 non-combustible, sustainable, and suitable to receive finishes directly

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BOS

01480 367096 Website

Application

The Knauf GIFAfloor FHB Hollow Floor Pedestal System is designed for commercial, residential and high-performance environments where durability, fire safety, and accessibility are essential.

Typical Applications

Lift lobbies – strong, durable surface with direct finish application.
Car showrooms – high load-bearing capacity with premium continuous finishes.
Airport lobbies and concourses – suitable for heavy traffic with robust acoustic performance.
High-rise buildings – non-combustible A1 panels for compliance with modern safety standards.
Office buildings – adaptable raised floor system with integrated void access.
Washrooms and toilet pods – moisture-tolerant substrate for ceramic or porcelain finishes.
Alternative to standard RAF systems – allows continuous finishes including sensitive finishes - which can be applied directly with the need for a separating layer.

Description

The Knauf GIFAfloor FHB Hollow Floor Pedestal System is a structural raised flooring solution that combines the benefits of dry screed technology with the versatility of a fully accessible hollow floor. Installed directly onto adjustable pedestals, the system provides a robust and sustainable substrate for continuous finishes such as stone, porcelain, and micro cement, while allowing partial access to the void beneath.

Material Composition

Panels are manufactured from gypsum fibreboard (calcium sulphate), using a blend of:

Recycled paper fibres
Natural gypsum
Flue gas desulphurised (FGD) gypsum

This process creates A1 non-combustible panels, delivering fire safety and durability, while maintaining a low embodied carbon footprint.

Manufacturing Process

GIFAfloor panels are pressed to optimum density through a lamination process, resulting in a dimensionally stable, inherently strong product. Tongue and groove edge profiles ensure secure interlocking, creating monolithic floors with excellent load-bearing performance.

Performance Benefits

Load-bearing gypsum fibre panels with high strength and stability.
A1 non-combustible fire rating, ensuring compliance with stringent building safety regulations.
Dimensional stability reduces risk of warping or movement.
Direct finish compatibility – suitable for natural stone, ceramics, porcelain, or micro cement, without the need for de-coupling layers.
Acoustic performance – high density improves airborne and impact sound insulation.
Thermal conductivity – “thermally transparent,” making it ideal for underfloor heating.
Quick installation – walkable within hours, unlike traditional wet screeds.
Access integration – frames and panels can be incorporated for void access.
Environmental credentials – EPD certified, manufactured from highly recycled content, low embodied carbon, Eurofins Indoor Air Quality Gold certified, and Red List Free.
End of life recyclability – 100% recyclable panels.
Building lifetime warranty for assurance of performance.

System Flexibility

Adjustable pedestal range: 19.5 mm – 1425 mm voids.
Provides the benefits of raised flooring where continuous finishes are required, avoiding the need for conventional RAF panels.

Also available to specify as a load bearing screed panel without pedestals - Knauf GIFAfloor FHB Self-Supporting System (for use with CLT, cradle & batten, or joists).

General information

Color	Grey Beige
Material	Gypsum
Shape	Rectangle Square
Length	1200 mm 600 mm
Width	600 mm
Height	25 mm 28 mm 32 mm 38 mm
Warranty description	Lifetime

Uniclass	Ss_30_20_70_37 Hollow floor systemsPrimary
CAWS	K41/120 Raised access floor to BS EN 12825 K41/110 Raised access floor to MOB PF2 PS/SPU K41/130 Raised access floor K41/130 Proprietary raised access floor K41/315 Floor panels K41/315 Floor panels

Specification data - Hollow floor systems

Classification data
System performance	- Manufacturer guidance Structural performance: Load Class 3–6 to BS EN 13213. Higher structural loadings possible - contact manufacturer.
Subfloor preparation	Prime the unfinished floor surface.
Support structure type	Knauf approved steel pedestal. Guidance for specification option: M16, M16ST, M20, M20ST2 or M20ST3 dependent on height and fire resistance requirement. Consult manufacturer for details and insert requirements.
Pedestal fixings	1-Part pedestal adhesive. T-Lock pedestal lock adhesive.
Hollow floor surface	Gypsum fibreboards.
Barriers in floor void	-
Fire barriers	Guidance for specification option: Consult manufacturer and insert requirements or omit.
Acoustic barriers	Guidance for specification option: Consult manufacturer and insert requirements or omit.
Plenum barriers	Guidance for specification option: Consult manufacturer and insert requirements or omit.
Samples required	- Manufacturer guidance Consult manufacturer and insert requirements or omit.
System accessories	Not required. Stringer for over 400 mm void. GifaBond blue panel adhesive. Guidance for specification option: (23/m² 1200 x 600 mm) (18/m² 600 x 600 mm). Knauf edge insulation strip mineral wool at perimeters.
Accessories	Knauf PGR acoustic pedestal cap. Guidance for specification option: Approx. impact sound improvement 19 dB. GifaFloor pedestal cap.
Load	3.0 kN (S+R); 4.0 kN (S+R+X). Guidance for specification option: S = system grid of the pedestals 600 x 600 mm. R = additional pedestals at 300 mm centres at perimeters. X = additional pedestals in the system grid centre (at the intersection point of the diagonals of the system grid). Manufacturer guidance Working load. Higher loading, acoustic and fire resistance available using a double layer system "GifaFloor Plus". Consult manufacturer for further information.
LoadSafetyFactor	To EN 13213, Class 2.
Thickness	25 mm.
Panel size	1200 x 600 mm.
Density	To EN 15283‑2, ≥1500 kg/m³.
Water vapour resistance	30/50 μ.
Edges	Tongue and groove.
Strength	To EN 13892‑8, ≥1.0 N/mm². Manufacturer guidance Adhesive tensile strength.
Hardness	≥40 N/mm². Guidance for specification option: Internal specification. Manufacturer guidance Surface hardness (Brinell).
Water absorption	To EN 15283-2, ≤300 g/m².
Flexural strength	≥8.7 N/mm².
SpecificHeatCapacity	>1000 J/(kg∙K).
ThermalConductivity	0.44 W/m·K. Guidance for specification option: In conjunction with underfloor heating systems 0.30 W/(mK) λ10.
Coefficient of thermal expansion	12.9∙10-6 1/K.
Panel weight	29.6 kg. Guidance for specification option: Weight per m²: 40.6 kg.
Reaction to fire	To EN 13501‑1, A1 (non-combustible).
Fire resistance	To EN 13501-2, REI30. Guidance for specification option: At the same loading and void height, FHB32->FHB38 offers REI60 REI90 is achievable with double layer (FHB32+FHB18). Consult manufacturer for further information. Manufacturer guidance Tested at 2 kN/m² at void heights up to 640 mm. Higher loading, acoustic and fire resistance available using a double layer system "GifaFloor Plus". Consult manufacturer for further information.
Impact sound reduction	~13 db (without covering); ~26 db (with covering). Guidance for specification option: Flanking normalized level difference (Dn,f,w,P): ~40 db (without covering) ~52 db (width joint + separation); ~48 db (with covering (VM = 28 db)). Weighted normalized impact sound level (Ln,f,w,P): ~90 db (without covering) ~65 db (width joint + separation); ~51 db (with covering (VM = 28 db)). Manufacturer guidance Sound improvement index (ΔLw,P). Higher loading, acoustic and fire resistance available using a double layer system "GifaFloor Plus". Consult manufacturer for further information.
Standards	To BS EN 13213.

Sustainability data

Contains Red List materials	No
Country of material origin	Germany
Country of product manufacture	Germany
Manufacturing plant location	Dieselstraße 10, 74589 Satteldorf, Germany
Material	Gypsum
Carbon dioxide equivalent
Carbon dioxide equivalent, as defined in BS EN 15804 Certified
Stage Normalised unit (kg CO₂ eq/kg) Declared unit (kg CO₂ eq/m²) Stage:A1–A3 ('Production stage') Normalised unit : Declared unit : 1.22
Recyclability	100%
Recycled content As defined in clause 7.8 of BS EN ISO 14021	80 %
Expected Life	Lifetime