How to Plane a Door Correctly

Planing a door is the most precise way to fix a sticking door. Done correctly, it removes just enough material to let the door swing freely without creating gaps. Here's how to do it right the first time.

When Do You Need to Plane a Door?

• The door sticks or binds against the frame
• The door drags on the floor
• The door has swollen from humidity
• New flooring has reduced clearance
• Paint buildup has made the door too thick for the frame

What You'll Need

• Hand plane or power planer
• Pencil (to mark sticking area)
• Sawhorses or workbench
• Sandpaper for finishing
• Primer and paint to seal after planing

• Amazon Basics Hand Planer No.4 (2" Steel Blade) — adjustable depth, ideal for door edge trimming; the standard choice for DIY door planing
• DEWALT 5-Inch Orbital Sander — for smoothing after planing
• Sanding Sponge 8-Pack (60–220 grit) — for hand finishing edges

Step 1: Mark the Sticking Area

Close the door slowly and mark exactly where it binds with a pencil. You can also rub chalk on the frame and close the door — the chalk transfers to the door at the contact point. Only plane the marked area.

Step 2: Remove the Door (Recommended)

For top and bottom edges, remove the door from its hinges. Tap hinge pins out from the bottom with a screwdriver and mallet. Lay the door flat on sawhorses — this gives you much better control and a cleaner result.

For the latch edge, you can often plane with the door in place.

Step 3: Set the Plane Depth

Set the plane blade to take a very thin shaving — about 1/32" per pass. You can always take more off; you can't put it back. Start with the thinnest setting and increase only if needed.

Step 4: Plane With the Grain

Always plane in the direction of the wood grain to avoid tear-out. On door edges, this usually means planing from the hinge end toward the latch end on the top, or from top to bottom on the sides.

Use long, even strokes with consistent pressure. Let the plane do the work — don't force it.

Step 5: Check Frequently

After every 2–3 passes, rehang the door and test the fit. You're looking for the door to close with light resistance — not freely (you'll have gaps) and not binding (you haven't removed enough). This back-and-forth is the key to a perfect result.

Step 6: Sand Smooth

After planing, sand the planed surface smooth with 120-grit sandpaper, then finish with 220-grit. This removes plane marks and prepares the surface for paint.

Step 7: Seal Immediately — This Is Critical

Apply primer and paint to the planed edge before rehanging the door. Bare wood absorbs moisture rapidly and will swell again within weeks if left unsealed. This is the most commonly skipped step and the reason doors stick again after planing.

How Much to Remove

• For summer swelling: remove just enough to close on a humid day with light resistance
• For paint buildup: remove until the edge is back to bare wood, then repaint with one thin coat
• For new flooring: measure the exact height difference and remove that amount plus 1/8" clearance