Grad Deck System – Accoya


Decking system with Accoya timber on hidden fixing support rails and height adjustable pedestals.

Features and benefits:

  • Fixings are completely hidden, even between the boards.
  • Includes fast-fit clips, which cannot be dislodged once fitted.
  • Attractive appearance.
  • Support rails have industrial strength.
  • Boards can be removed with no damage (using specific tools - consult manufacturer for details).
  • Space-saving - can be installed to lower heights than traditional decking.
  • A matching cladding system is available - consult manufacturer for details.
  • Boards are free from grooves, with a convex surface – this prevents ‘cupping’ of the timber and eliminates water from pooling.
  • Quick, efficient installation - almost twice as fast as traditional methods.
  • Includes a performance guarantee of up to 50 years.
  • Pedestal-based build-up height is from 62 mm.
  • Boards are FSC® certified.

Accoya timber:

Accoya is created by a non-toxic acetylation process that permanently modifies the wood. It is:

  • Knot free.
  • Rot resistant.
  • Environmentally friendly.
  • Lightly toned.
  • Highly durable, with a high dimensional stability.
  • Sourced from sustainable FSC® accredited forests in New Zealand.

General information

Uniclass 2015

Ss_30_20_30_25 Decking systemsPrimary


Q55/110 Deck

Specification data - Decking systems

Product Reference

Grad Deck System – Accoya

Board length

3–4.8 m. Insert requirement.




Conventional timber joist

Consult manufacturer for details.

18 mm flat rail (aluminium)

0.7 kg/lm.

30 mm rail (aluminium)

1.1 kg/lm.

45 mm rail (aluminium)

1.2 kg/lm.

62 mm rail (aluminium)

1.3 kg/lm.



Consult manufacturer and insert requirements.

Not required

Standard product features

Board size (w x t):

118 x 21 mm.

Board weight:

11 kg/m².

Product Options


Please note that when specifying a decking rail, live load requirement and planned pedestal centres must be considered. All rails are 3.7 m long, with clips fitted at the factory.


Different variants are available depending on the height required. Without pedestals, the Grad system can be installed with build-up heights as low as just 40 mm. Consult manufacturer for details.


Grad `Hidden Fix` Decking System Data Sheet

Grad `Hidden Fix` Decking System Data Sheet

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