Why are my doors suddenly sticking?

Doors that begin sticking without an obvious cause — particularly interior doors that never had issues before — are frequently a sign of structural movement. The door frame is attached to the wall framing, which sits on the floor system. When floor joists deflect, rot, or lose section capacity, the floor drops slightly. This causes the wall framing to rack, pulling door frames out of square. The door no longer sits plumb in the opening and binds against the jamb or threshold. In Tacoma homes, this is one of the earliest visible indicators of crawl space structural problems.

Can sticking doors be a sign of foundation problems?

Yes. Foundation movement — whether from mudsill deterioration, post settlement, or soil movement — transfers directly into the floor system and wall framing above. Sticking or binding doors at multiple locations throughout the house, especially on the same side or end of the building, often indicate a foundation-level issue affecting that zone of the framing. A single sticking door may be a humidity swing; multiple sticking doors in a pattern are a structural signal.

How do I know if my sticking door is structural or just humidity?

Humidity-related sticking is typically seasonal — doors swell in wet months and operate normally in dry months. Structural sticking is progressive and does not reverse with seasonal change. If a door began sticking and has stayed stuck, worsened, or is now accompanied by other symptoms (soft floors, musty smell, visible gaps at floor-wall junctions, cracked drywall), the cause is structural rather than seasonal. A forensic inspection distinguishes the two definitively.

Will trimming or planing a sticking door fix a structural problem?

No. Planing or trimming a sticking door addresses the symptom, not the cause. If the door is sticking because the rough opening has racked out of square due to floor system deflection or foundation movement, trimming the door will provide temporary clearance while the structural cause continues to progress. As movement continues, the door will bind again — and the framing, walls, and adjacent finishes will accumulate additional damage.

Does diagnosing and repairing structural causes of sticking doors require a licensed contractor in Washington State?

Yes. When sticking doors are caused by floor system deflection, post rot, sill plate failure, or foundation movement, the repair involves structural framing work that requires a registered general contractor under RCW 18.27. Realty Repair Co. holds WA GC License #APCONL*825QO. The $350 forensic diagnostic distinguishes structural causes from non-structural causes and produces a written fixed-price repair scope when structural repair is warranted.

🚨 Symptom Diagnosis

Sticking Doors &
Binding Windows

Sticking doors in a Tacoma home are often structural. A door that starts sticking and doesn't stop is telling you something moved structurally. A forensic inspection finds what shifted, why, and what it costs to fix it permanently.

Book the $350 Diagnostic Call 253-891-9622

Direct Answer

What Doors That Stick or Will Not Latch Actually Means

Doors that suddenly stick, drag, or stop latching are usually reporting movement in the structure around the opening — floor settlement below, or a decayed header or trimmer around the door itself. Planing the door hides the movement without addressing it. Realty Repair Co. (APCON LLC, Washington General Contractor #APCONL*825QO) diagnoses and repairs this condition directly as the general contractor in Tacoma and Pierce County, Washington.

Common causes: floor framing settlement below the opening, a decayed or overspanned header, decayed king studs or trimmers from a window or roof leak, or foundation movement.
Is it urgent: It does not self-correct. The underlying moisture or load problem continues, and repair scope grows with time.
How it is diagnosed: $350 forensic structural report — on-site moisture meter readings, physical probing to map the failure boundary, photographs, identified cause, and a fixed-price repair proposal. Credited 100% against the repair contract if you proceed.
Pricing method: Lump-sum fixed price issued after the failure boundary is confirmed. No hourly billing.
Guarantee: Five-year written guarantee on structural repairs.
Licensing: WA General Contractor #APCONL*825QO, bonded and insured. Work performed under the 2021 Washington State Residential Code (WAC 51-51, effective March 15, 2024).
Contact: 253-891-9622 · dispatch@realtyrepairco.com · 711 115th St S, Tacoma, WA 98444

Reviewed by Dindar Nasim, owner and Washington licensed general contractor (#APCONL*825QO) · Updated October 13, 2026

The Report Is the Product

^$350

Forensic Structural Report

You are not buying an estimate. You are buying a written structural report you own — the framing around the opening and the floor system below it inspected and moisture-tested, the cause of the movement identified, photographs, and a lump-sum fixed price. Planing the door hides the movement; it does not stop it.

Schedule Diagnostic

Credited 100% against your repair contract. If the findings show no structural repair is needed, you keep the report and there is nothing to buy.

The Structural Mechanism

How a Floor Problem Becomes a Door Problem

Door frames don't move on their own. They move because the wall framing holding them shifted — and wall framing shifts because the floor system below it moved. The chain runs downward: door sticks → wall frame racked → floor deflected → structural framing failed.

🔹 Floor Joist Deflection

When floor joists lose section capacity — through rot, notching, or overspan — they deflect under load. The floor drops slightly in the affected bay. The wall above follows, racking door and window frames out of plumb. Interior doors in that zone begin binding at the top corner opposite the deflection.

🔹 Mudsill or Sill Plate Failure

The mudsill is the lowest structural member — the wood plate connecting the floor system to the foundation. When it rots, the rim joist and floor above lose lateral support at the perimeter. The floor drops at the building edge, causing wall frames near exterior windows and doors to rack visibly.

🔹 Post Settlement or Rot

Interior crawl space posts support the main beam. When a post settles, deteriorates, or was inadequately shimmed, the beam it carries drops. Floor bays on both sides of that beam deflect. Multiple doors in the center zone of the house may begin sticking simultaneously.

🔹 Differential Foundation Movement

One zone of the foundation settling faster than adjacent zones creates differential movement in the floor system. The floor tilts slightly toward the settled zone. Wall framing above that zone racks. Doors in the affected area bind consistently on the same corner or side of the frame.

Diagnostic Criteria

Seasonal Humidity vs. Structural Movement

Humidity swings cause wood to expand and contract seasonally. Structural movement is one-directional and progressive. Distinguishing the two determines whether a cosmetic adjustment is appropriate or a structural repair is required.

☀

Humidity-Related (Seasonal) Sticking begins in fall/winter, resolves in summer. Consistent pattern year over year. Single door affected. No floor symptoms. Planing the door edge corrects it.

🔴

Structural (Progressive) Sticking began at a specific point in time and has not reversed. Getting worse regardless of season. Multiple doors or windows affected. Concurrent floor symptoms present.

🔴

Gaps at Floor-Wall Junction Visible daylight or gap between baseboard and floor, or between wall and ceiling, indicates the framing has moved enough to open the junction. This is structural displacement, not seasonal swelling.

🔴

Diagonal Drywall Cracking Diagonal cracks running from door or window corners at 45 degrees are a classic sign of frame racking from differential settlement. The crack follows the tension line in the drywall sheet as the frame distorts.

🔴

Bouncy or Sloping Floors Nearby If the sticking door is in a zone where the floor also feels springy, soft, or slightly lower than adjacent rooms, the floor system is the active cause. The door is a symptom; the joist or post is the source.

🔴

Pattern Across Multiple Openings When two or more doors or windows in the same zone of the house begin sticking in the same period, the cause is almost certainly a structural framing event — not isolated humidity — affecting that floor bay or wall line.

⚠ Do Not Plane or Adjust — Diagnose First

Planing a door that sticks due to structural movement is cosmetic masking of a worsening condition. The frame will continue to rack as the underlying cause progresses. The door will need adjustment again in 6–12 months, and the structural damage will be more extensive. A forensic inspection before any adjustment determines whether you're dealing with wood movement or structural failure.

The Process

From Sticking Door to Closed Scope

$350 Forensic Diagnostic

Crawl space entry, framing inspection, level and plumb measurements. Root cause of door binding identified. Structural failure points documented.

Written Repair Scope

Fixed-price lump-sum contract. Every structural component addressed. No hourly billing, no change order exposure.

Structural Repair

Failed framing replaced or sistered. Beam, post, or mudsill corrected. Floor system restored to level and plumb. Door and window frames follow.

5-Year Guarantee

All structural work carries a 5-year written guarantee. Documentation provided for inspection reports, lender files, or disclosure records.

FAQ

Sticking Doors — Common Questions

Sudden door sticking without a seasonal pattern is almost always caused by structural movement. Floor joists deflecting, mudsill rot at the perimeter, or a crawl space post settling will rack the wall frames above, pulling door openings out of square. The door binds because its frame is no longer plumb.

If the cause is structural movement, planing is cosmetic. The frame will continue to rack as the underlying cause progresses. In 6–12 months the door will need adjustment again, the damage will be worse, and the repair cost will be higher. A forensic inspection first determines whether planing is the right fix or whether structural repair is required.

Yes. A single sticking door may be an isolated humidity issue or a localized framing problem. Multiple sticking doors, particularly in a pattern across one zone of the house, indicate a structural event affecting a floor bay, beam, or wall line that serves multiple openings simultaneously. This warrants a forensic inspection to identify the full scope of structural movement.

No. Planing or trimming addresses the symptom, not the cause. If the door sticks because the rough opening has racked out of square due to floor system deflection or foundation movement, trimming provides temporary clearance while the structural cause continues to progress. The door will bind again — and framing, walls, and finishes will accumulate additional damage in the meantime.

Yes, when the cause is structural. Floor system deflection, post rot, sill plate failure, and foundation movement all require structural framing repair by a registered general contractor under RCW 18.27. The $350 diagnostic distinguishes structural causes from non-structural causes and produces a fixed-price repair scope when structural work is warranted. Realty Repair Co. holds WA GC License #APCONL*825QO.

Yes. Home inspectors note binding doors and windows and typically flag them as potential indicators of structural movement or settlement. When combined with crawl space findings, they become a material defect that creates negotiation leverage and can affect financing. A licensed GC repair with documentation eliminates that finding before listing.

Related Issues

Other Symptoms That May Share a Root Cause

Diagnosis Quick Reference

Sticking Doors & Windows —
Symptom to Repair Scope

Doors that stop latching, windows that won't close — these are framing signals, not cosmetic issues. The table below maps sticking patterns to the structural causes behind them.

Sub-Symptom	Likely Cause	Typical Repair Scope
One door suddenly sticking after nothing changed	Foundation movement or localized framing shift	Forensic diagnostic; may require sill plate or joist scope
Multiple doors sticking same side of house	Settling or rot along one foundation wall; sill plate likely	Sill plate replacement; foundation diagnostic
Doors sticking worse in summer than winter (or reverse)	Seasonal moisture cycling; humidity swelling/shrinking framing	Crawl space encapsulation for humidity control
Window frames showing gaps or racking	Wall framing shift; window rough opening distorting	Framing assessment; possible structural repair
Door sticking with visible crack in drywall above	Active structural movement; framing is progressing	Urgent diagnostic; structural engineer referral likely

When to Call — Today vs. Later

Not every symptom requires immediate action. Some are structural emergencies that get worse fast and more expensive the longer you wait. Others are stable conditions that can be scheduled at your convenience. Here's how to tell them apart.

Call the Same Week

Door that suddenly won't close after being fine
Multiple doors on same wall affected together
Sticking with new drywall cracks above the door
Sticking worsening over weeks, not seasons
Visible racking of door or window frame

Safe to Schedule

One door sticking in same spot for years
Sticking that resolves with seasonal weather
Sticking caused by paint buildup (visible thick paint)
Exterior door sticking only when very humid
Old door on old hinges you've been meaning to plane

A Door That Sticks Is Asking a Question

The answer is either cosmetic or structural. A $350 diagnostic tells you which — and if it's structural, delivers a fixed-price scope to correct it permanently.