How to install a cavity sliding door

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How to install a cavity sliding door

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Project Overview

Sliding doors are great to use in small rooms where you don’t have room for a swinging door. Learn how to install a sliding door into a stud wall. We show you how to attach the frame. See how to attach rollers to the door. We also show you how to position guides so the door slides smoothly. 
Continue to step-by-step instructions
sliding door
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A helpful tip for measuring packers

Masonite packers are used to fill the gap between the frame and the wall. A great way to measure the length you need is to hold the packer up against the stud and mark the end with your finger. Then just snap the packer. This way you’ll never have a packer that is longer than the stud is wide.

Step by Step Instructions

1 Put the sliding door frame together
2 Install the frame into your stud wall
3 Use packers to support the frame
4 Attach the rollers and hang the door
  • Step 1. Put the sliding door frame together

    Knock out the spacer at the top of the frame and insert the sliding track into the cavity. Screw the track to the doorframe.  Hammer two nails into the top of the doorframe upright and put the opposite frame upright in place. Use two nails to hold it in place.

  • Step 2. Install the frame into your stud wall

    In this video we are installing the door in an empty stud wall. If you already have plaster walls you are going to have to cut away the plaster.  Place the frame into the stud wall. Make sure it is flush to the outside of the studs so that when you put the plaster on there is no bulging in the wall. Use the nail gun to fix it in place.

  • Step 3. Use packers to support the frame

    When fixing the other side to the frame make sure you position it 10mm in front of the stud so that when you put the plaster on it is flush with the edge of your frame.

    Use your spirit level to make sure the edge of the frame is level. Pack the gap between the stud and the frame with Masonite packers. Nail it together. Make sure you have support at the top and bottom as well as through the middle.

  • Step 4. Attach the rollers and hang the door

    Screw the roller base plates to the top of the door. Make sure they are 80mm from each end and in the centre of the door edge. Place your door in the frame and insert the roller pins into the base plate. Use the locking pin on the side to hold the roller in place. Adjust the height and plumb of the door using the spanner provided. Screw the door guides onto the floor so the door can slide evenly in and out of the cavity unit.

Tools and Materials


  • Chisel
  • Drill and bits
  • Hammer
  • Handsaw
  • Level and square
  • Masonite packers
  • Nail gun
  • Pencil
  • Phillips and flat head screw driver
  • Safety equipment
  • Sliding door
  • Tape measure

More D.I.Y Advice

Health & Safety

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions that came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings Team Member.

Grave health hazards are linked to asbestos, which may be in homes built up to 1990. Health hazards may result from exposure to lead-based paints in older materials and copper chromium arsenic (CCA) treated timber. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer or visit our Health & Safety page. You can also use a simple test kit from Bunnings to indicate the presence of lead-based paint.
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