Doors that give life to any interior. 

Internal cavity sliding doors systems offer refreshing aesthetics and versatility, making them popular among Australian designers and property owners. They are suitable for both commercial and residential settings, increasingly replacing hinged doors in preexisting buildings and are an easy pick for new construction.

Triline Quality Door Systems is Australia’s leading source of internal cavity sliding doors systems. Our collection of internal cavity sliding door systems is designed to minimise obstructions and allow you to maximise space. Easy to install and ready for dispatch, they are perfect for any of Australia’s homes and commercial spaces. View our range of internal cavity slider doors below.

Your convenience is a priority at Triline Quality Door Systems. From manufacturing to distribution, we see to it that our operations give actual solutions. We partner with major hardware stores throughout Australia, to make our door solutions easily accessible.

Our suite of internal cavity sliding doors is manufactured to high standards. Our doors offer space-saving solutions and are safe and easy to operate. You can install them in any room, even those accessed by children and the elderly. 

Each model is designed and built to address unique requirements and meet varying design preferences. With the simple act of choosing the right Triline internal cavity sliding door, you can enhance every room at work or in your living space.

Can’t find what you need?

Triline designs and manufactures versatile internal cavity sliding doors. If you can’t find a system that meets your requirements, feel free to discuss with us your needs and preferences. We’d be happy to make a custom product for your business, home or project.

Talk to Triline Quality Door Systems today.


At Triline Quality Door Systems, your convenience is our top priority when we manufacture our door solutions. Many hardware stores throughout Australia carry our range, so customers can easily find the product they want.

Our collection of internal cavity sliding door systems consists of different versions of the popular door system, each manufactured according to stringent standards to suit your unique requirements and design preferences. You can make the most of your living space, and even enhance it, by simply choosing the right door system to suit the way you use the room.

When opened, traditional doors take up a considerable amount of space. With our cavity sliding doors, you won’t have that problem. The doors are fixed in their frames, and you simply slide them to open and close them. Easy to access and use, you can install them in any room, even ones for elderly loved ones and young children.

Triline’s internal cavity sliding doors are an extremely versatile option for any property owner. You can find what you need in our collection. If not, then you may talk to us to discuss your requirements and preferences; we’ll be happy to make a custom product for you. Talk to Triline Quality Door Systems today.