Our Story

Triline came into being in 1996 due to a strong demand in the market for a quality cavity sliding door. After extensive research in Australia and New Zealand, our first production run of 50 standard sized cavity sliders was manufactured. Over the next eight years our output increased steadily and we outgrew our original facility by 2004. At the beginning of 2005 we expanded into larger premises and as a result we have significantly increased production output.

Between 2008 and 2011, the design of our original cavity slider unit was overhauled after consultation with the building industry and the Phoenix 45™ cavity slider was introduced. We are now able to offer an even better cavity slider as our starting point and have added three further types to our range - the Hercules™, Concept™ and Zero Clearance™ cavity sliders. We have also introduced a range of internal bifolding doors, the Pivotfold™ system.

We are committed to producing the finest quality sliding and folding door systems and associated hardware available. Our quality sliding and folding systems are available through all leading hardware stores around Tasmania and selected stores Australia-wide.



Our mission is to satisfy our customers' needs by providing quality products and support services that are tailored to our customers' requirements.


We are committed to becoming Australia's leading manufacturer of quality sliding and folding door systems, providing unparalleled products and service. We strive to serve our customers and staff by developing relationships based on our core values: Honesty, Accountability, Diligence and Passion.

Core Values

Honesty: We incorporate honesty and integrity in our actions and dealings with our customers, suppliers and staff

Accountability: We hold ourselves accountable for the products and service we provide and to one another within the organisation

Diligence: Providing quality products and service on time with attention to detail every time

Passion: Enthusiasm in what we do, our products and services are important to each team member