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Heavy Grade Access Floor System

Heavy office use.


Heavy grade access floor systems - uniformly distributed load (UDL): 12 kN/m².

The fully encapsulated panel comprises of a wraparound steel top and a steel base plate that are mechanically stitched around a particle board core for greater strength and durability.

The system is manufactured in an advanced energy-efficient manufacturing facility where 94% of the energy used is supplied from sustainable sources.

Features and benefits:

  • Tested in accordance with PSA MOB PF2 PS/SPU for raised access floors.
  • All working loads perform to a three times safety factor.
  • Finished floor heights from 60–1200 mm are achievable using standard pedestals. For heights outside of this range, alternative pedestals are available separately. Consult manufacturer for details.
  • Point load 25 x 25 mm: 4.5 kN.
  • Fire classification to BS 476-6 and BS 476-7.
  • FSC® certified.
  • 25-year total system warranty.

Warranty only valid when a full Kingspan Access Floor system including panels and under structure is installed.


Heavy office use.

General information

Uniclass 2015

Ss_30_20_70_70 Raised access floor systemsPrimary


K41/130 Raised access floor

Specification data - Raised access floor systems

Product Reference

Heavy Grade Access Floor System – RHG600

Panel size

600 x 600 mm


600 x 900 mm (medium grade)

Optional for perimeter detailing.

600 x 900 mm (heavy grade)

Optional for perimeter detailing.




Alpha III

For voids ≥610 mm.

Alpha V

For voids between 25–610 mm.


Nickel plated





Acoustic pedestal adhesive

Manufacturer's standard



Pivot-head adaptors


Clip-on stringer

For lateral stability in 600–800 mm void heights.

Screw-down stringer

For lateral stability in >800 mm void heights.

Underfloor plenum

Not required


Additional requirements


Simploc screw down

Pre-drilled holes for fixing, whilst allowing full access to the void.

Standard product features

Technical characteristics:

  • Thickness: 32 mm.
  • System weight: 44 kg/m².
  • Panel size: 600 x 600 mm.
  • Core material: 30 mm high density particle board.
  • Category: Loose lay.
  • Fire resistance (to BS EN 13501-2): R30r/ RE30r.
  • Airborne sound insulation (Dnfw): 41 dB. (44 dB with barrier and 46 dB with barrier and covering).
  • Impact sound insulation (Lnfw): 74 dB. (67 dB with barrier and 58 dB with barrier and covering).

Product Options


Steel pedestals are coated with an environmentally friendly clear passivation as standard.

Underfloor plenum:

The system can be supplied with neoprene gaskets to minimize air loss through the raised floor surface from the underfloor plenum to aid air circulation, distribution and management.

Third party certifications
  • FSC: C019806
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