SPECLAM 15
Spec Lam 15+ is an Australian-manufactured structural glue-laminated beam product developed specifically to match the depth of ITI’s broader range of Laminated Veneer Lumber and Wooden I-Joist products, along with open-web trusses commonly used in floor framing systems.
The sizing of Spec Lam 15+ can eliminate time-consuming processes during construction, such as packing up beams or embedding deeper beams in wall frames above.
Spec Lam 15+ is substitutable for GL17c per the details in the table below.
Available from ITI’s Distribution Centres in Sydney & Newcastle, our Australian-grown pine H2 LOSP Treated stock is ready to be delivered to South Australia’s foremost timber and building suppliers. It caters specifically to the state’s builders who demand nothing but the finest quality in their choice of construction materials.
Product Specifications
Lengths Available: 3.6 through to 8.4m in 0.6m increments & 12.0m
Appearance Grade:
Grade C - As defined in AS1328.1: This grade is intended for use in applications where appearance is not important. All blemishes and voids are acceptable. Where the member is not machined after lay-up overlap of laminations may be present.
Treatment: LOSP H2 treatment for protection against termites and insects found across all regions of Australia.
Beam Structure: 600m radius camber
Spec Lam 15+ comes standard with a 600 metre radius providing greater resistance to dead load deflection. This typically results in designers being able to specify a more efficient beam. There are a few key points to consider when using a cambered beam.
When designing a Spec Lam 15+ across a continuous span consider the beam as having no camber i.e., a straight beam.

A cambered beam can typically be used where a straight beam has been specified except when the beam is in a cantilevered application.
Always install with the TOP EDGE marking on the top edge of the beam.
When installing a cambered beam across multiple spans, initially fix the beam to the end supports only. Once the beam is loaded, and the camber is no longer visible, complete the fixing at any intermediate supports.
ITI Spec Lam 15+ is a proprietry Grade and must not be subsituted for by other products
Hyne Design is a free to register structural design platform for timber designers of all experience levels a tool to specify ITI and Hyne Timber’s broad range of structural timber products, including Spec Lam 15+.
To request access please email ewpnsw@iti.net.au
Note: Users are required to meet the requirements of the ABCB Structural Software Protocol to obtain access.
For technical assistance and information on where to buy please call 02 8805 5000 or ewpnsw@iti.net.au
