How to fix wobbly flat-pack furniture

A wobble almost always comes from one of three things: loose fittings, a frame that is out of square, or an uneven floor. Check them in that order and most wobbles are gone in half an hour, without buying anything.

Time
about 30 min
Difficulty
Easy
People
1 person
Steps
6

Tools needed

  • Allen key or screwdriver
  • Tape measure
  • Spirit level
  • Felt pads or adjustable glides
  • Small hammer

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.

  • All bolts, cam locks and screws
  • The back panel and its nails or clips
  • Feet or glides

Step by step

  1. Step 1: Check the floor first: put the piece somewhere else, or check the floor with a spirit level. If it only rocks in one spot, the floor is the cause.

  2. Step 2: Tighten every bolt, screw and cam lock, using firm but not maximum force.

  3. Step 3: On cabinets and shelving, measure the diagonals across the back. If they differ, loosen the back panel, push the frame square and refix the back all the way around.

  4. Step 4: Add any missing nails or clips to the back panel; a back fixed at only a few points does not brace the frame.

  5. Step 5: Fit adjustable glides or felt pads under the feet, and adjust them until the piece stands firm.

  6. Step 6: For tall pieces that still sway a little, fix them to the wall.

Common mistakes

  • Wedging folded paper under a foot when the real problem is a loose joint.
  • Overtightening cam locks, which cracks the chipboard and makes the joint looser.
  • Ignoring a back panel that has come loose.

Safety notes

  • A wobbly tall piece is a tip-over risk: fix it to the wall.
  • Stop using chairs or beds that still wobble after tightening, and check for cracked parts.

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