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Engineered straight, strong and durable, J-Frame is suitable for a wide range of uses; including residential and commercial framing and truss systems.

J-Frame is a general purpose Structural Laminated Veneer Lumber (LVL) gauged framing timber product manufactured by Juken New Zealand (JNL) from 100% renewable Radiata Pine, plantation forest.

J-Frame is the only structural framing timber in New Zealand to currently have CodeMark. This proves compliance with the building code and acceptance by all New Zealand councils.

Key Features
  • Reliable straight and durable
  • Made in accordance with strict quality and environmental standards
  • Boron preservative treated
  • LVL8 and LVL10 meet or exceed the equivalent stress for SG8 and SG10 grades in NZS3603 Amendment No.4 Table 2.3.
  • J-Frame Standard Lengths: 2.4, 3.0 and 6.0 metres
  • J-Frame Cut-to-Length studs: 2.33, 2.63 and 2.93 metres
Structural Timber
Scope of Use
  • J-Frame is specified in building work designed in accordance with NZS3604:2011 or specifically engineered in accordance with NZS3603:1993 and where hazard class H1.2 or less applies
  • In order for the installer to establish compliance with E2.3.6, refer to moisture meter correction figures for J-Frame LVL framing (Table 5), Scion, 27/1/2009
Limitations on Use

J-Frame should be kept dry when being stored. Place on the ground with packers to prevent moisture uptake. The plastic wrapping should be removed only when the product is being used and should be re-covered to maintain its dry state.

Statement of Building Code Compliance

When designed, installed and maintained in accordance with the conditions of the CodeMark Certificate J-Frame and J-Lintel will comply with the following provisions of the NZ Building Code:

  • Clause B1 Structure: B1.3.1, B1.3.2, B1.3.3 (a, b, f, g, h & q), B1.3.4 (a, b, c, d, e) 
  • Clause B2 Durability: B2.3.1 (a), B2.3.2 (a, b)
  • Clause F2 Hazardous Building Materials: F2.3.1
Other Performance Attributes

The manufacture of J-Frame is independently certified to AS/NZS4357 (Structural LVL) and is made in accordance with strict quality and environmental standards.

  • 100% renewable Radiata Pine, plantation forest.
  • Boron preservative treated
B1 Structure compliant
B2 Durability compliant
F2 Hazardous Building Materials compliant
Hazardous Building Materials
BRANZ Appraised
BRANZ Appraised
J-Frame Technical/Design Manual
BRANZ Appraisal 646

646 (2019)

CodeMark (CM70031) Basis for Certification

v2 2019

CodeMark Certificate


Scion: Moisture Meter Correction Figures
Scion: Recommended Procedure for Moisture Testing
J-Frame Care & Maintenance Guide — Codemark
J-Frame Brochure
Technical Manual

Juken make a wide range of advanced and innovative engineered wood, LVL (Laminated Veneer Lumber), Panels and Solid Wood products.

Product Enquiries

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