How to assemble a wardrobe with sliding doors

A sliding-door wardrobe is the biggest flat-pack job in most homes. It is built lying down and stood up at the end, so space and a helper matter as much as tools. The doors only run smoothly if the carcass is square and the tracks are level.

Time
about 4 h
Difficulty
Hard
People
2 people
Steps
9

Tools needed

  • Allen key (supplied)
  • Cross-head screwdriver
  • Small hammer
  • Tape measure
  • Spirit level
  • Wall fixings to suit your wall

Parts to check first

Before you start, lay everything out on a soft surface (the flattened box works) and check it against the parts list in your manual.

  • Carcass panels: top, bottom, sides and dividers
  • Back panels and joining strips
  • Top and bottom door tracks
  • Sliding doors with wheels and guides
  • Shelves, hanging rails, cam locks, dowels and anti-tip fitting

Step by step

  1. Step 1: Measure the ceiling height: the wardrobe must be tipped up from lying on its back, and its diagonal must fit under the ceiling.

  2. Step 2: Build the carcass lying on its back on a soft surface, fitting the sides and dividers to the base and top with dowels and cam locks.

  3. Step 3: Measure the diagonals of the back and push the carcass square, then fix the back panels, with any joining strips, along every edge.

  4. Step 4: With two people, lift the wardrobe upright by walking it up from the top end, then slide it into place.

  5. Step 5: Level the carcass with the adjustable feet or packers, checking both across and front to back with a spirit level.

  6. Step 6: Screw the top and bottom door tracks in place, making sure they are parallel and fully level.

  7. Step 7: Fit the rear door first: lift it into the top track, then lower it into the bottom track. Then fit the front door.

  8. Step 8: Adjust the door wheels so the doors hang straight and meet the sides evenly, then fit the shelves and hanging rails.

  9. Step 9: Fix the wardrobe to the wall with the anti-tip fitting.

Common mistakes

  • Building the wardrobe upright, which makes it almost impossible to square.
  • Forgetting to measure the ceiling, so the wardrobe cannot be tipped up.
  • Levelling the doors by adjusting the wheels when the real problem is a carcass that is not level.

Safety notes

  • Lifting a large wardrobe upright takes two people; lift with your legs and keep your back straight.
  • Mirror doors are heavy and fragile: carry them upright with two people and wear gloves.
  • Always fix the wardrobe to the wall.

This is general guidance for this type of product. Your product's own manual comes first: follow its order, fittings and torque values where they differ from this page.

Updated 2026-09-30