How to Install a Cavity Slider Door (Step-by-Step Guide)

Installing a cavity slider door is a popular solution in Australian homes where space efficiency and modern interior design are important.
Unlike traditional hinged doors, a cavity sliding door disappears into the wall cavity, creating more usable space and a clean architectural look.

Premium cavity slider systems are designed for reliable performance and easy installation.
The guide below explains the correct step-by-step process for installing a cavity slider door system.

Step 1 — Prepare the Wall Opening

The first step is preparing the wall opening where the cavity slider frame will be installed.
The opening must be large enough to allow the assembled cavity frame to fit correctly and remain perfectly aligned within the wall structure.

In most installations, the wall opening must be approximately twice the width of the door panel so the door can slide fully inside the cavity when opened.

Step 2 — Assemble the Cavity Frame and Track

Before installing the system into the wall, the cavity slider frame must be assembled.
This includes assembling the aluminium cavity frame structure and installing the sliding track at the top of the frame.

The track must be installed straight and level because it controls the movement of the roller carriages and ensures the door slides smoothly.

Once the frame and track are assembled, the cavity slider becomes a complete unit ready to be installed into the prepared wall opening.

Step 3 — Install the Cavity Frame Into the Wall

After assembling the cavity frame and sliding track, the full unit is placed into the prepared wall opening.

The frame must be positioned between the wall studs and fixed securely to the floor and surrounding structure.
Correct alignment is critical because any misalignment can affect the smooth operation of the sliding door.

Step 4 — Hang the Door Panel

Once the cavity frame is securely installed inside the wall, the door panel can be attached to the roller carriages.

The roller assemblies connect to the top of the door panel and slide inside the aluminium track installed in the cavity frame.

After hanging the door, check that the panel slides smoothly and fully disappears into the wall cavity.

Step 5 — Install Floor Guides and Door Stops

Floor guides and track stops are installed to control the movement of the door and keep it properly aligned.

The floor guide prevents the door from swinging sideways, while the stops determine how far the door opens and closes.

Step 6 — Install Optional Soft-Close System

Many modern cavity slider systems include optional soft-close hardware.
This mechanism slows the door automatically before closing and allows the door to close gently and quietly.

Soft-close systems are commonly used in modern residential and architectural sliding door installations.

Watch the Installation Video

The video below demonstrates the cavity slider installation process step-by-step.

Common Installation Mistakes

  • Incorrect wall opening dimensions
  • Track not installed level
  • Cavity frame not aligned with wall studs
  • Door rollers not adjusted correctly

Related Cavity Slider Systems

Learn More About Cavity Sliding Doors

Before installing a cavity slider door, it is important to understand the correct system, door sizes and available cavity slider options. Explore our detailed guides below.

Frequently Asked Questions

Can I install a cavity slider door myself?

Yes. Many cavity slider systems are designed for easy installation by builders and experienced DIY installers.
However, accurate wall framing and correct alignment are essential for proper operation.

How much wall space is required for a cavity slider?

The wall opening usually needs to be about twice the width of the door panel to allow the door to slide completely into the wall cavity.

Can cavity slider doors support heavy doors?

Yes. Heavy-duty systems such as the Premium 125kg and Premium 150kg cavity slider systems are designed for large timber, aluminium, or glass door panels.