Direct answer: A door that binds after rain is usually reacting to moisture, not a bad slab all by itself. Most often the door edge swells, the hinges loosen just enough to let the slab sag, or the frame shifts slightly when the opening gets damp.
Most likely: Start by finding the exact rub point with the door moving slowly. Top latch-side rubbing usually points to hinge sag or frame shift. Broad rubbing along the latch edge or top edge after wet weather usually points to wood swelling.
This one fools a lot of homeowners because the door may work fine in dry weather and act up only after a storm. Reality check: a little seasonal movement is common, but a door that suddenly needs a shoulder-check usually has a specific rub point you can see. Common wrong move: shaving the door before tightening hinges and checking for moisture at the frame.
Don’t start with: Do not start by planing the door or forcing the latch. That can turn a temporary wet-weather bind into a year-round gap problem.
The top corner opposite the hinges scrapes the frame or header, and the latch may miss the strike unless you lift the handle or push hard.
Start here: Check for loose hinge screws, hinge leaf movement, or a slight sag before assuming the door needs trimming.
The door closes, but the latch-side edge drags along the jamb more than usual after rain or high humidity.
Start here: Look for wood swelling, paint sticking, or weatherstripping compressed too tightly by a damp frame.
You hear scraping across a wider section of the top edge, especially right after wet weather.
Start here: Check whether the slab has swollen at the top edge or the frame head has moved from moisture.
The slab gets into the opening, but the latch hits low, high, or sideways on the strike plate after rain.
Start here: Watch the latch line up with the strike while closing slowly to separate alignment trouble from simple edge rubbing.
This is one of the most common reasons a door binds at the top latch corner, and rain can make a small sag show up fast because clearances get tighter.
Quick check: Open the door partway and lift gently on the handle side. If you feel play at the hinges or see a hinge leaf move, start there.
Wood doors and unfinished edge grain can take on moisture and grow just enough to drag on the jamb or header after rain.
Quick check: Look for fresh rub marks, a slightly fuzzy paint edge, or a tight fit that improves again when the weather dries out.
An exterior opening can move when trim, jamb legs, or nearby framing get wet, especially if caulk or flashing has been letting water in.
Quick check: Look for damp trim, soft paint, swollen casing, or a reveal around the door that changed unevenly after the storm.
Sometimes the slab is not rubbing much at all. The real complaint is that the latch no longer lines up once humidity changes the fit.
Quick check: Close the door slowly and watch whether the latch tongue hits the strike plate above, below, or to one side.
You need to separate hinge sag, slab swelling, and latch misalignment early. They feel similar at the knob but leave different clues at the opening.
Next move: If you clearly find one tight area, move to the matching fix instead of making broad adjustments. If the door binds in several places and the frame looks damp or out of square, treat it as a moisture and frame issue first.
What to conclude: A single top-corner rub usually points to alignment. Broad seasonal tightness usually points to swelling or a damp opening.
Loose hinges are the fastest common fix and the least destructive place to start. A door that only binds after rain often already had a small sag that wet weather made obvious.
Next move: If the rub eases or the latch lines up again, the main problem was hinge movement. If the hinges are solid and the door still drags broadly after wet weather, move on to swelling and frame checks.
What to conclude: Improvement here points to sag, not a door slab that needs trimming right away.
When the fit gets tight only after rain, moisture is often changing the size of the wood or the opening. You want to confirm that before removing material.
Next move: If the door frees up as the weather dries, you have confirmed a moisture-related movement problem. If the fit stays bad even in dry weather, the opening may have shifted permanently or the hardware alignment is still off.
A lot of 'sticking' complaints are really latch alignment problems. If the slab swings fairly freely but will not click shut, you need to correct the hardware position, not shave the door.
Next move: If the latch starts entering cleanly again, the main issue was alignment at the strike. If the latch is still off because the whole slab sits low or twisted, go back to hinge and frame movement rather than enlarging the strike opening blindly.
Once you know the cause, the right fix is usually small: secure the hinges, correct the strike, replace worn weatherstripping, or dry and reseal the affected edge. Cutting the door is the last move, not the first one.
A good result: The door should swing without scraping, latch without a shove, and keep an even reveal through the next wet spell.
If not: If the fit changes wildly with each storm or the frame is moving, the repair is beyond simple hardware adjustment.
What to conclude: A stable fix comes from correcting the source of movement, not just making the opening bigger.
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Because moisture changes the fit. The door slab, jamb, or both can swell slightly, and a small hinge sag that was barely noticeable in dry weather suddenly becomes a bind.
Usually not first. Tighten the hinges, check latch alignment, and look for moisture at the slab and frame before removing material. If you trim too soon, you can end up with a loose, drafty gap when the weather dries out.
Hinge sag usually shows up as rubbing at the top latch-side corner and a latch that lines up better if you lift the handle. Swelling usually feels broader along the latch edge or top edge and tracks closely with humid or rainy weather.
Yes. Crushed, folded, or overly thick weatherstripping can make the door feel hard to close even when the slab is not really rubbing the frame much. Check the seal for bunching before you start cutting wood.
Call for help if the jamb is wet or rotted, the opening looks out of square, the door has glass or specialty construction, or the problem keeps coming back after hinge tightening and basic alignment work.
Most of the time it starts as a small hardware or moisture issue, but repeated rain-related binding can point to the frame taking on water. If the reveals change unevenly or the trim feels damp, pay close attention to the opening, not just the slab.