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Hand plane for a sticking door

Updated: 24 October 2026

The bathroom door catches on the frame, or the garden gate has swollen after a wet week, and you have one of the cheaper No. 4s from the [smoothing plane comparison](/hub/hand-tools/smoothing-plane). A hand plane for a sticking door can take a thin shaving off the catching spot. It should not become a new door, and it should not touch a fire door's seals. Setting the iron is the [how to use a smoothing plane](/hub/hand-tools/smoothing-plane/sub/smoothing-plane-how-to-use) page. Peter F. wrote this on 22 October 2026 from amazon.co.uk review notes, Checkatrade, Wickes and fire-door guidance. It is not a lab test. A comparison link can earn a commission at no extra cost to you.

The bathroom door catches on the frame, or the garden gate has swollen after a wet week, and you have one of the cheaper No. 4s from the smoothing plane comparison.

Our top picks

Amazon Basics Amazon Basics No. 4, grey/black

Best overall

Amazon Basics Amazon Basics No. 4, grey/black
8.1/10about £16.20
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Spear & Jackson Spear & Jackson CSP4 No. 4

Best value

Spear & Jackson Spear & Jackson CSP4 No. 4
7.0/10about £17.20
View offer
Amazon Basics Amazon Basics No. 4, wooden handles

Alternative

Amazon Basics Amazon Basics No. 4, wooden handles
6.8/10about £21.95
View offer
On this page
  1. 1.Before the plane
  2. 2.A thin shaving, not a new door
  3. 3.Paint the edge you just cut
  4. 4.When you do not plane

Before the plane

Wickes and Checkatrade both say to check the hinges first. A loose screw or a dropped hinge makes the latch side rub, and planing that rub opens a gap somewhere else. If the frame has moved, or the latch no longer meets the keep, stop. A plane will not pull a frame back. A standard internal door that rubs in dry weather is this page. A slight seasonal stick may only need sandpaper, which is Wickes' note. An outdoor gate will take on water again if you leave the edge bare. Mark the rub with card or a soft pencil while the door is hung. Checkatrade's method is that mark, then the door comes off. You are planing the mark, not the whole stile.

A thin shaving, not a new door

Take the door off to plane the top or the bottom, which is Wickes' advice, and support it so it cannot rock. Checkatrade says a blunt iron is the more dangerous one because you lean on it. Plane with the grain, in from the ends, so the corner does not split, and use tape if the finish may break out. Refit after a few shavings. About 2–3 mm is Checkatrade's gap on a standard internal door, not a quota. If the card clears after one thin shaving, stop. The reviews around £16 to £22 name bathroom doors, a gate and an oak-veneer edge on the grey Amazon Basics, and doors after a hone on the Spear & Jackson. One reviewer had already made dust with an electric planer. That is a warning about speed, not a second tool. Spec checks, if you have not bought yet, are the smoothing plane buying guide. A block plane is the wrong sole for a stile you want to keep straight.
Amazon Basics Amazon Basics No. 4, grey/black

Testsieger

Amazon Basics Amazon Basics No. 4, grey/black
8.1/10about £16.20
View offer

Paint the edge you just cut

Bare wood on a bathroom door or a gate will swell back into the frame. Wickes tells you to allow for paint. Sand the arris, then prime and paint or oil the bare strip, including end grain if you planed the top or the bottom. A thick wet coat can put back more than you removed. Hang the door after the finish has dried. Leave the latch and the keep alone unless they were the original fault.

When you do not plane

Do not plane a rated fire door as if it were a bathroom door. Wickes says not to plane edges that carry fire strips and seals. The British Woodworking Federation's Certifire note says you must not trim more than the allowance in that leaf's own instructions. Allowances are not one national number. CF5261 prints 3 mm on the stiles, top and bottom for that certificate, and the label has to remain. A Birmingham Joinery FD60 sheet says planing the edges may void that door's certification. If you cannot find the leaf's own sheet, stop. One brown Amazon Basics review says the buyer planed a solid-wood fire door. That claim is not a method. If you are unsure whether the door is a fire door, treat it as one until you know.

Common questions

Can a No. 4 ease a sticking door?
Yes, on an ordinary internal door or a swollen gate, once the hinges are tight and you have marked the rub. UK reviews on the grey Amazon Basics, around £16.20, are mostly that job. Take thin shavings off the mark and refit the door before you take more. A No. 4 does not fix a dropped frame, and it is not the tool for a fire door's sealed edges.
Should I check the hinges first?
Yes. Wickes and Checkatrade both start there. A loose hinge makes the latch side catch, and planing that spot opens a gap at the hinge side. Tighten sound screws, then close the door and mark what still rubs. If the frame itself has moved, stop planing and sort the opening.
How much wood comes off?
Only enough that a piece of card no longer catches. Checkatrade's about 2–3 mm is their suggested gap on a standard internal door, not a target you must reach on every leaf. One thin shaving may be the whole job. Leave room for the paint you are about to put back. If you are still cutting after the rub has gone, you are making a rattle.
Can I plane a fire door?
Not from this page. Wickes says not to plane edges that carry fire strips and seals, and to get help for a rated fire door. The BWF says you may trim only within that leaf's own instructions. CF5261's 3 mm is one certificate, not every fire door, and another fitter's sheet says planing can void certification. A review that claims a fire door was planed is not a procedure. If there is no allowance sheet, do not plane it.
What do I do to the bare edge afterwards?
Sand the sharp arris, then prime and paint or oil the bare wood, including end grain if you planed the top or the bottom. Wickes tells you to allow for that film, so do not plane extra for the paint and then add a heavy coat as well. Hang the door again only after the finish has dried. An unsealed bathroom edge or gate edge will swell back into the frame.

Related pages

Smoothing plane vs block plane

Smoothing plane

Best smoothing plane UK: a door, a bench, or a name

Smoothing plane buying guide: which line is the iron

How to use a smoothing plane and get one thin shaving

Sources

Public UK sources and amazon.co.uk listing files. Checked on 22 October 2026.

  1. Stanley Tools UK, No. 4 smoothing bench plane 1-12-004 (retrieved 22 October 2026)
  2. Consumer Rights Act 2015, sections 9 and 19 (retrieved 22 October 2026)
  3. HSE, PUWER overview (retrieved 22 October 2026)
  4. HSE, Wood dust: controlling the risks (WIS23) (retrieved 22 October 2026)
  5. MyToolShed, smoothing planes (retrieved 22 October 2026)
  6. MyToolShed, Faithfull No. 4 smoothing plane (retrieved 22 October 2026)
  7. Tooled-Up, smoothing planes (retrieved 22 October 2026)
  8. Cherry Tree Tools, hand planes explained (retrieved 22 October 2026)
  9. amazon.co.uk listings for the six planes in this comparison (retrieved 22 October 2026)