Engineered Systems in Port Stephens NSW

Drone View of Residential Housing — GRT Building Supplies in Port Stephens, NSW

Residential & Commercial Projects

GRT Building Supplies has a wide range of durable and reliable engineered systems, featuring frames and trusses for residential and commercial projects. Based in Port Stephens, our expert team has frequently worked with local engineers, architects and builders, supplying them with high quality building products from brands such as SmartFrame and hySpan 

Our experienced staff are on site to provide professional advice and help you source the best materials for your project. We can then deliver your order to you for your convenience, catering for jobs of all sizes. If you need assistance choosing wall frames and timber trusses, visit us at our Salamander Bay store or give us a call today. 

Smart Frame


Backed up by state-of-the-art designs, SmartFrame offers a full range of laminated veneer lumber, SmartJoists and SmartLam beams. As one of Australia’s leading suppliers, SmartFrame products are durable and reliable. Speak to us on the phone or visit us in store for professional advice and assistance.



Sourced from managed plantation forests, hySPAN has been providing high quality laminated veneer lumber for more than two decades. Available in long lengths up to 13.2 metres, termite treatments are applied to the glue line during manufacture to achieve full protection down to the core of the beam.