CHH Australia - Product Information

Benefits

Consisting of structural LVL flanges and a structural plywood web connected using a Type A waterproof bond, hyJOIST is strong, light and easy to install.

Straight, uniform & dimensionally stable in a lightweight form
Greater design flexibility for an economical floor joist layout
- Available in 10 section depths
- 3 different flange widths
- Long lengths up to 13.2 metres
Easier installation of services within the floor space
Easier to install compared to hardwood and steel alternatives
Sourced from environmentally sustainable plantation pine
Stringent quality control - EPWAA certified

Suitable Applications include

Floor joists for houses and commercial floors
Roof rafters & purlins for houses and commercial systems (suited to low pitch applications)

HYJOIST DISTRIBUTORS

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FREE TIMBER DESIGN SOFTWARE

Peace of Mind against terminates - hyJOIST H2-S Terminator

hyJOIST is also available treated (H2-S) for protection against termites and other insects in above ground, weather protected applications in areas south of the Tropic of Capricorn. It gives all the benefits of structural LVL with added termite deterrent qualities.

Backed by a 25-year fully transferable guarantee from the chemical manufacturers

Each beam is treated to the core during manufacture.
Clearly marked with H2-S for ease of identification
Backed by a 25-year fully transferable guarantee from the chemical manufacturers

Field & Product Support

hyJOIST is supported in the field by an experienced engineering support group able to assist with enquiries ranging from design to installation advice.

PHONE - 1800 808 131

Local TECHNICAL MANAGERS

Click here to locate your local technical manager

Range	Depth (mm)	Pieces per packs
		Flange Width (mm)
		45	63	90
HJ200 45	200	41
HJ240 45	240	41
HJ240 63	240		31
HJ240 90	240			21
HJ300 45	300	41
HJ300 63	300		31
HJ300 90	300			21
HJ360 63	360		31
HJ360 90	360			21
HJ400 90	400			21

Legend Treatment
	H2- S Treatment
	H2-S treated or untreated

More options for more economical floor joist layouts

Select the economy section (HJ240 45, HJ300 45 & HJ360 63) of appropriate depth to accommodate the spans of the main area of the floor. Cater for any larger spans in the floor area using the wider flange options of corresponding depth.

Quick Links

Description and Applications
Certification and Compliance
- Technical Literature
Handling and Installation

Technical enquiries

Expert technical support is only a phone call away. Carter Holt Harvey provides expert technical support through an in-house network of engineers and technical managers. This free service is available by simply calling 1800 808 131.

Description and Applications

hyJOIST is an engineered I-Joist manufactured using structural LVL flanges and a plywood web connected using a Type A waterproof bond.

Applications

hyJOIST is suitable for structural applications including residential and commercial floor and roof rafter systems, and industrial purlins. hyJOIST is not intended to support brickwork or other heavy masonry products.

Treatment for Durability

hyJOIST H2-S Terminator is available in all sizes and is part of the Carter Holt Harvey Terminator range. hyJOIST H2-S Terminator is treated against termites south of the Tropic of Capricorn. The treatment is applied to the glueline during manufacture to achieve full termite protection to the core of the beam. No further sealing is required on cut ends or holes.

Moisture content

hyJOIST, at time of despatch from the manufacturing site has a moisture content of between 8-15%.

Structural grading

The properties of hyJOIST have been determined by testing as required by AS/NZS 4357, and are not substitutable for F grades, MGP grade, or other proprietary I-joists. Design verification using the Carter Holt Harvey free designIT software or selection guide (located in the hyJOIST design guide) is required to ensure suitability.

Certification & Compliance

hyJOIST flanges are manufactured in accordance with AS/NZS 4357, and the plywood web is manufactured in accordance with AS/NZS 2269. hyJOIST is product certified by the Engineered Wood Products Association of Australasia (EWPAA), which is JAS-ANZ certified. Participation and compliance with this process based quality control scheme ensures ‘Evidence of Suitability’ in accordance with Clause 1.2.2 of the Building Code of Australia (BCA).

Formaldehyde Emissions

All hyJOIST is manufactured using an 'A' Bond with less than 0.3mg/l Formaldehyde (equivalent to Super E0) emissions from the final product.

Technical Literature

See the brochure tab for all available literature related to hyJOIST.

Handling and Installation

Storage

The following recommendations regarding storage are made in order to ensure that the full benefits of hyJOIST as a dry, straight and true material are available at the time of installation.

Stack on level bearers to keep flat and straight.
Stack well clear of the ground for good ventilation.
Store under cover to keep dry prior to installation.

Note: After installation, exposure to sun and rain for normal periods of construction is not a cause for concern.

General Installation

hyJOIST should be installed strictly in accordance with the details supplied in the hyJOIST Installation Guide.

Technical Note: Rimboard

Carter Holt Harvey sometimes receive requests to assist specifiers with technical advice on other generic products when used in conjunction with hySPAN LVL and hyJOIST Engineered I-Joists. The following Technical Note entitled 'Rimboard' is an example of this - Download.

Racking Through Floors

Modern house designs often feature large open plan living areas with large windows or doors to 'bring the outdoors inside'. In two storey houses this normally means deep section engineered floor joists capable of spanning over lower level open areas.
More information is contained in the hyJOIST design guide and hyJOIST installation guide

Racking Through Floors - Detail

hyJOIST Cantilevers

hyJOIST floor joists are capable of meeting the loading requirements for cantilevers as defined in AS/NZS 1170. For external use, hyJOIST floor joists must be protected from becoming wet by a fully waterproof deck. In the case of non-waterproofed decks the use of outriggers of suitable natural durability or preservative treated to H3 as per AS/NZS 1604 is suggested. Outriggers can also provide a step down to the deck reducing the likelihood of water ingress at openings.
More information is contained in the hyJOIST design guide and hyJOIST installation guide.

Health & Safety

The MSDS available from the website details all health and safety precautions required when using hyJOIST

Environmental certification

hyJOIST is manufactured from 100% renewable plantation timber. All timber is sourced from Australian Forestry Standard and/or FSC certified forests.

Technical Publications

hyJOIST Introduction

6 pages
Format: PDF
FileSize: 1.2MB
Download File>

hyJOIST Design Guide

12 pages
Format: PDF
FileSize: 1.75MB
Download File>

hyJOIST Installation Guide

16 pages
Format: PDF
FileSize: 3.8MB
Download File>

hySPAN: Use in weather exposed applications

2 page
Format: PDF
FileSize: 208K
Download File>

MSDS

	Hyjoist H2-S Terminator Material Safety Data Sheet (MSDS)
	Format: PDF Filesize: 1KB Download file >>

	Hyjoist Material Safety Data Sheet (MSDS)
	Format: PDF Filesize: 1KB Download file >>

Carter Holt Harvey is committed to on-going reviews of its MSDS's to ensure they reflect all currently available information. In the event that you require more detail on any MSDS or would like to confirm that you have the most recent MSDS for a particular product, please contact the Marketing Department via phoning 132 321.

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