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How to fit swivel castors

Updated: 17 October 2026

The screws look as if the job is finished. How to fit swivel castors starts earlier than the drill. Measure the plate, decide whether the face can hold a screw, then mark and pilot. This page is for timber, plywood, or chipboard. The plate sizes in the [swivel castors comparison](/hub/diy-supplies/swivel-castors) are examples, not a ranking. Peter F. did not fit a set. If the brake is still open, settle it on [swivel castors with brakes](/hub/diy-supplies/swivel-castors/sub/swivel-castors-with-brakes) before you drill. A qualifying purchase can earn a commission at no extra cost to you.

The screws look as if the job is finished. How to fit swivel castors starts earlier than the drill. Measure the plate, decide whether the face can hold a screw, then mark and pilot.

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Measure the plate you have, not the wheel size

Wheel diameter will not tell you the holes. QED’s industrial plate, up to 125 mm, is often 105 × 80 mm. DSL uses 50 × 50 mm, 65 × 65 mm, and 92 × 63 mm. A 50 mm square will not cover 105 × 80 mm. Elongating holes until a screw catches is how a thin panel fails. Hold the new plate on the corner and mark from that plate. Navoys states 6 mm holes and does not include screws. TXMXT does not list bolts, so do not invent a size. If the plate misses the holes on a machine or a rated flight case, a metalworker should take over.

The face has to carry the plate

Solid timber and plywood can take a plate screw if it bites past the surface. Veneered chipboard often cannot. A short multipack screw pulls out when you drag the piece. If you can flex the panel, do not treat that screw as the structure. DSL’s 100 mm bolts are 8 × 30 mm, and one reviewer found them too short. Emuca reviews describe heads that shear. Flintronic heads fit neither Pozidriv nor Phillips. If the drive cams out, use a screw you have chosen. Aeaocvo is peel-and-stick, so there is no hole to pilot.

Mark, pilot, then tighten

On a sound face, position the castors, mark from the plate, drill a pilot smaller than the shank, then fit. Keep the drill square. On chipboard the pilot stops the core bursting sideways. It does not make a thin panel strong. Fit one corner, then the opposite corner, then the other two. Stop when the head is home. Extra turns strip chipboard. Stop nuts help only if you can reach the other side. If the holes cannot agree, put the drill down and choose the plate on the swivel castors buying guide.

Test the brake before you load it

With the plates tight and the piece still empty, roll it on the floor it will live on. Turn each swivel through a full circle and listen for a fork that hits the carcase. Set the brake, if the pack has one, and try to push the unloaded piece. You are checking that the pedal moves and that the wheel you locked is the one that stops. You are not yet proving the lock under a loaded bench. Only then put the weight on. If the brake count in the box does not match the title, the shortlist is on best swivel castors.

Stop and get help

Get a joiner or a metalworker if the face is hollow metal, glass, stone, or a thin panel. Stop for a workplace trolley, a patient trolley, or anything a person rides. A furniture multipack is not that specification. Stop if the plate misses the holes on a machine or a rated flight case. A new screw pattern there is a modification, not a like-for-like swap.

Common questions

Do I drill before I hold the plate up?
No. Hold the plate on the corner, mark the centres from that plate, and only then drill the pilot. The wheel diameter will not give you the hole pattern. In this file a 50 mm wheel can sit on a 50 × 50 mm plate, a 75 mm wheel on 65 × 65 mm, and a 100 mm wheel on 92 × 63 mm. None of those is the 105 × 80 mm industrial plate. Drilling first is how you discover the mismatch after the chipboard is already damaged.
What if the old holes are the industrial pattern and the new plate is 50 mm square?
A 50 × 50 mm plate will not cover a 105 × 80 mm pattern. Do not oval the holes until a screw catches. Either fit a plate that matches the old centres, or treat the corner as a new layout on a face that can take new holes. If the old holes belong to a rated flight case or a machine, stop and get a metalworker. That mismatch is not solved by the screws in a furniture bag.
Can I screw into veneered chipboard?
Only when the core behind the veneer is thick enough to hold the thread, and the screw is long enough to reach it. A short multipack screw in a thin veneered panel pulls out. Solid timber and plywood are the faces this sequence is written for. If you can flex the panel, or the screw is shorter than the face you need to grip, do not use that corner as the structure. A joiner is the right call when the panel is all you have.
The pack has screws. Should I use them?
Check the drive and the length before you commit. Emuca reviews describe heads that shear, and Flintronic heads that do not fit Pozidriv or Phillips. DSL’s 100 mm bolts were too short for a thick frame in one review, and a 75 mm reviewer wanted another 10 mm. If the drive cams out or the shank is too short, use a fixing you have chosen. Navoys does not include screws. TXMXT does not list bolts, so you do not invent a size.
How do I fit a castor if the listing says adhesive?
You do not drill. Aeaocvo’s bullets say peel-and-stick, and the attribute that says plate mount is the conflict, not a second method. Clean the face, follow the film, and do not mix that pack into the pilot-hole sequence. It is a mini roller, not a plate you screw to a cabinet. If you needed a screwed plate, you have the wrong listing.

Related pages

Sources

Public UK and manufacturer sources on furniture castors, brakes, and the Consumer Rights Act 2015. Listing prices and star counts are from the amazon.co.uk extracts for this comparison, dated 15 October 2026. Prices move.

  1. BS EN 12528:1999, furniture castors (retrieved 15 October 2026)
  2. BS EN 12532:1999, industrial castors (retrieved 15 October 2026)
  3. BS EN 12529:1999, swivel-chair castors (retrieved 15 October 2026)
  4. HSE, roll cages and wheeled racks (retrieved 15 October 2026)
  5. HSE, pushing and pulling (retrieved 15 October 2026)
  6. Consumer Rights Act 2015, section 11 (retrieved 15 October 2026)
  7. QED Castors, castor types (retrieved 15 October 2026)
  8. Guy-Raymond Engineering, braking it down (retrieved 15 October 2026)