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Why is my exterior door sticking and hard to close in summer?

A door that sticks in summer is likely swollen from humidity. Sand the high spots or adjust the hinges to restore smooth operation.

Category:Doors & Windows

Difficulty:Easy

Time:30 min

Success:50%

Updated:Jun 30, 2026

quick_referenceQuick Answer

For Why is my exterior door sticking and hard to close in summer?, start with "Identify the sticking point": Close the door slowly and feel where it binds. Look for paint rubbing off or a shiny spot on the frame or door edge. Stop DIY if the door frame itself is warped or rotted. This is listed as a easy recovery and usually takes about 30 min.

verifiedGuide Snapshot

Repair areaDoors & Windows

Estimated time30 min

DifficultyEasy

Stop conditions3

Last updated Jun 30, 2026. Review the stop conditions before continuing.

account_treeRecovery State

DeviceDoor

Current stateSticking

Specific stateSwelling From Humidity

Failed stepDoor Swelling

Likely failure typeMisalignment

DIY boundaryDIY recovery first

paymentsCost decision

help1. Understand the Problem

Wood and composite doors absorb moisture in humid weather, causing the door to swell and bind against the frame. The most common contact points are the top edge or latch side. Minor sanding or hinge adjustment usually fixes the issue without replacing the door.

build_circle2. Try This First

Best First Step

Identify the sticking point

Close the door slowly and feel where it binds. Look for paint rubbing off or a shiny spot on the frame or door edge.

visibility3. Visual Guidance

See what's happening and how to try the first recovery step.

Sand the high spotLightly sand the rubbing area with 100-grit sandpaper. Sand in the direction of the wood grain. Wipe away dust.

Check hinge screwsTighten all hinge screws with a screwdriver. If a screw spins freely, replace it with a longer 3-inch screw to grip the stud.

Adjust the strike plateIf the latch doesn't align, file the strike plate opening slightly wider using a metal file. Test the latch each pass.

Step 4: Apply a moisture-resistant sealant

Apply a moisture-resistant sealantPaint or seal the top and bottom edges of the door with exterior-grade paint or polyurethane to reduce future swelling.

autorenew4. If That Doesn't Work

Try the next recovery options.

Install a door sweep with a drip capIf the bottom is sticking, a sweep can protect the door bottom from moisture while providing a seal.

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Replace with a fiberglass doorFiberglass doors resist moisture and won't swell. This is a long-term solution for severe humidity issues.

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Frequently Asked Questions

Will the door shrink back in winter?expand_more

Yes, wood doors often shrink in dry winter air. The sanding you do now may leave a gap later—use weatherstripping to compensate.

Can I plane the door instead of sanding?expand_more

Yes, but planing removes more material. Use a hand plane only if the sticking is severe (more than 1/8 inch).

How do I prevent future swelling?expand_more

Apply a good exterior paint or sealant to all six sides of the door (including top and bottom). Reapply every 2-3 years.

What if the door sticks at the bottom?expand_more

Check for a swollen bottom edge or a loose threshold. Sand the bottom if needed, or adjust the threshold screws to lower it.

warning5. Stop DIY If

Don't continue if any of these apply.

reportThe door frame itself is warped or rotted

reportThe door is metal or fiberglass and still sticks (frame issue)

reportYou see mold or rot on the door bottom or frame

Still stuck?Get personalized help with AI Recovery.

Same Device Recovery States

Device index arrow_forward

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Door Sticking at TopA door that sticks at the top is often due to swollen wood or loose hinges. Sanding the top edge or adjusting hinge screws usually fixes it.

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Door sticks at topAn interior door that rubs against the frame at the top is often caused by loose hinges, humidity swelling, or a settled frame.

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Squeaky Door HingeThat ear-piercing door hinge squeak isn't just annoying — it's metal grinding on metal. Stop it tonight with stuff you already own.

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Door sticks when closingA door that sticks usually has swollen wood, loose hinges, or misaligned strike plate. Adjust the hinges or plane the door for a smooth swing.

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Door latch misalignment fixFix a door latch that won't engage by adjusting the strike plate, tightening hinges, or realigning the latch mechanism.

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Door sticks in humidityWood doors swell in humid weather, causing them to rub against the frame. Find out how to locate the sticking point and fix it without replacing the door.

Similar Failure Pattern

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This page provides general DIY guidance.
If you're unsure, it's always best to consult a professional.