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IBuilt GL Posts
Description

Laminated, H5 treated and planed to achieve a smooth clean visual post, IBuilt GL Posts are suitable for verandas, carports, and deck and roof supports.  Posts are dimensional stability and treated for in ground use.  

Made in New Zealand from high strength northern radiata pine. 

Key Features
  • Post size (mm) 88x88, 112x112, 135x135
  • Post lengths (m) 1.5, 2.4, 2.4, 3.0, 3.6, 4.2, 4.8, 6.0
  • Laminate species Radiata pine (GL8)
  • Surface finish Planed, Visual
  • Edge profile Edge arrised
  • Preservative treatment CCA H5 (laminate treatment)
  • Bond Type Structural “A“ Bond
  • Third party certification Grade Right (NZ)
  • Durability Min 50 years to meet NZBC clause B2
  • Manufacturing standard AS/NZS 1328:1998
NZ Made
NZ Made
Scope of Use
  • IBUILT™ H5 glue laminated posts (IBUILT™ H5 posts) are supplied for use as structural and non-structural posts
  • Their installation can be founded on a structural bracket or in a concrete foundation
  • Post applications include: verandas, carports and supporting decks and roofs

Determine IBUILT H5 glue laminated posts size required in accordance with NZS 3604:2011 or using specific engineering design in accordance with NZS 3603:1993 and AS 1720.1-2010 taking into account project-specific factors; loads, wind zones, seismic zone, exposure zone.

Check for fire code obligations When fire obligations apply, as determined by the position of the IBUILT H5 glue laminated posts, specification and design must also be subject to specific fire engineering. Establish installation requirements Installation must be in accordance with NZS 3604:2011 or when specifically engineered to NZS 3603:1993.

If the IBUILT H5 glue laminated posts are to be cast in-ground in a concrete foundation, the following must be specified:

  • Hole size
  • Post depth
  • Install a minimum of 100 mm concrete cover between the post and the base of the foundation hole
  • Fixings
  • Coating — above and below ground coating is mandatory

A permanent sealing system (oil based alkyd primer plus two topcoats) appropriate for the Hazard Classification and service location must be applied within 2 weeks of installation. The portion of the post that is to be in-ground must be sealed prior to being cast in concrete.

If the IBUILT H5 glue laminated posts are to be founded on a metal bracket, the following must be specified:

  • Fixings.
  • Coating – above ground coating is mandatory in order to maintain the visual appearance

A permanent sealing system (oil based alkyd primer plus two topcoats) appropriate for the Hazard Classification and service location must be applied within 2 weeks of installation.

Finish: Any damage to the post, depressions, or temporary fixing holes must be filled and sanded. Apply a timber plug and exterior timber grade glue for large imperfections. When coating the posts:

  • The coating must be applied within 14 days of installation
  • An oil based alkyd primer plus two topcoats, ensure adequate coating is applied as per the directions of the paint supplier’s data sheets
  • An LRV greater than 45% is recommended
Limitations on Use

Designed and installed in accordance with NZS 3604:2011 or specifically engineered to NZS 3603:1993.

  • Section 4 of NZS 3604:2011 must be used for the selection of structural brackets, subject to the NZS 3604:2011 exposure zones.
  • The dimensional stability and strength of the post rely on the width and thickness of the post. Therefore, the dimension of the post must not be changed where this would result in a reduction of the width and/or thickness. Above ground applications. 
  • The post must be attached to a structural bracket that will resist all applied loads. Below ground applications. 
  • Where installed below ground, the in-ground portion of the post must be sealed and the post:
    • seated on a punch pad of 100 mm, and
    • fully encased in concrete with a minimum 100 mm side cover
Statement of Building Code Compliance

Where subject to a building consent refer to the building consent plans and specifications for the size and location of the IBUILT™ H5 glue laminated posts, the depth of the footing, and fixings.

Where specific assemblies are not contained in the building consent documentation, refer to:

• NZS 3604:2011

• information from all suppliers (structural brackets, coatings, etc.).

B1 Structure compliant
Structure
B2 Durability compliant
Durability
F2 Hazardous Building Materials compliant
Hazardous Building Materials
Documents
Technical/Design Manual

December 2020

PASS: Product Technical Statement

91928 Dec 2020

Maintenance and Warranty

December 2020

New Zealand Wood Products Ltd is a supplier of I-Built engineered timber, glulam, plywood and associated materials.

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