What's inside
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Find out why the door sticks
A swollen door often needs only a small amount of wood removed, but planing before you locate the rub can leave a visible gap once the weather changes. First, check that the door is actually rubbing on its edge. Look for polished paint, fresh scratches, or a strip of paper that gets trapped when you close the door. Note whether the tight spot is at the top, bottom, or latch side.
Check the hinges and frame, too. Loose hinge screws, a sagging door, or a shifted jamb can make a sound door bind. Tighten loose screws and see whether the gap around the door is reasonably even. If the gap is much wider at one end than the other, or the door has dropped noticeably, correct the hinge or frame problem before removing wood.
Humidity can also be temporary. If the door binds only after wet weather and the interference is slight, give it time to dry when practical. Planing is permanent; wood removed in damp conditions will not grow back in dry weather.
Mark the area and set a limit
Open the door and identify the high spot. A strip of masking tape on the door edge makes pencil marks easier to see and helps protect the paint beside the cut. If the rub is hard to locate, color the suspected edge lightly with chalk or pencil, close the door gently, then inspect where the mark transfers or scuffs. Do not force a tight door shut.
Measure the gap at several points and write down the smallest one. The aim is to remove only enough wood for the door to swing freely, not to make the gap look perfectly uniform at every point. As a cautious starting point, take a very light shaving—around 0.2 to 0.5 mm—then test the fit. That is a target for a fine pass, not a guaranteed amount: plane setup, wood species, and grain can change how much a stroke removes.
Protect the floor and, if possible, take the door off its hinges and support it securely on padded trestles. A door left hanging can be planed, but it must not swing while you work. Keep your free hand out of the plane’s path.
Choose a plane for controlled shavings
A sharp block plane is handy for small, localized corrections and short edges. For a longer door edge, a well-set smoothing or jack plane is easier to keep straight over the full length. The right choice is a plane that cuts cleanly and feels controllable; a larger plane is not automatically better if it is dull or poorly adjusted.
| Tool | Best use | Trade-off |
|---|---|---|
| Block plane | Short high spots, small adjustments, and breaking a sharp corner | Easy to control, but harder to keep a long edge straight |
| Smoothing or jack plane | Removing a fine, even shaving along most of an edge | Better reach, but needs a steady stroke and a flat, sharp iron |
| Coarse rasp or sanding block | Very small touch-ups where a plane cannot sit flat | Useful for detail, but easier to make an uneven or rounded edge |
If you need to buy one, compare a basic adjustable block plane for occasional small repairs with a longer bench plane for repeated door work. A basic plane is fine for a one-off job if its sole is sound and the iron can be sharpened. Price alone does not make a plane cut well.
Set up for fine cuts
Check the blade edge against a light; a bright line or nicks usually mean it needs sharpening. Hone it before starting if necessary. Set the iron for a thin shaving, with the blade projecting only a little below the sole. If the plane has a mouth adjustment, close it enough to support the shaving without clogging. Make a test cut on scrap wood if available.
Use a combination square and sharp pencil to mark a consistent boundary if only one section needs reducing. Avoid planing beyond the marks unless a test fit shows the rub extends farther.
Plane with the grain and test often
On a typical door, work on the latch edge with the plane held square to the face. Start at one end and use long, controlled strokes, keeping even pressure over the front and rear handles. Watch the shaving: a thin, continuous shaving is a good sign; dust, tearing, or chatter suggests a dull iron, a poor setting, or difficult grain.
Grain direction can change along a door edge, especially near stiles or joints. If the plane tears fibers instead of cutting them cleanly, reverse direction, reduce the blade projection, or take shorter strokes in that patch. Do not lean harder to force a cut. That can dig a hollow or catch an edge. Keep the plane flat as it starts and finishes each pass so you do not round the ends.
After a few passes, brush away shavings and hang or hold the door in its frame to test it. Close it gently and check the original rub point. Repeat with one or two light passes at a time. Stop as soon as it clears without force; a little extra clearance is not a reason to keep planing.
Finish the cut and avoid common mistakes
When the fit is right, ease the sharp arris with one or two light strokes or a fine sanding block. Do not round over the whole edge. Seal or paint exposed wood, particularly on an exterior door, to slow moisture uptake. Match the existing finish where practical and let it dry before judging the final fit.
Common mistakes include planing the wrong edge before checking hinges, removing too much in one session, and cutting across the grain until the edge splinters. If the edge needs more than a few millimetres removed, or the door is badly out of square, stop and investigate the frame, hinges, or door construction. A hand plane is for controlled correction, not a substitute for fixing a shifted jamb.