Is This Your Problem?
Logs shrink as they dry out, and the whole house settles on its screw jacks.
Get Matched With a Local ProLog Settling and Doors or Windows That Stick
Settling is not a defect. It is how a log home behaves as the wood dries down to match the air inside the house. The trouble starts when that movement is ignored: doors and windows bind, trim cracks, jacks sit uneven — and what was a simple adjustment becomes a racked frame or a broken seal.
Warning Signs — What to Look For
- Doors that stick, drag, or suddenly need a hard shove to close
- Windows that bind in the middle of their travel or will not latch
- Gaps opening between logs at corners and above windows and doors
- Cracks where walls meet ceilings, or trim pulling away from the jambs
- Screw jack posts that sit uneven, lean, or have lifted off their piers
- Less than 2-3 in of clearance left above a door or window rough opening
Common Causes — Why This Happens
Settlement follows moisture. Air-dried logs go in at roughly 22% moisture content and slowly dry toward the 8% range they settle into inside a heated home. Engineered (EWP) logs lose about 0.22% of their size for every 1% drop in moisture, so that roughly 14-point swing adds up to about 3.08% of linear shrink — around 3.7 in on a 10-ft (120-in) wall. Most of that movement lands in the first three years, which is why screw jacks are designed to be adjusted 2-4 in over years 1-3. Gatlinburg runs a bigger moisture swing than most climates, so the movement is bigger too — and when the logs move but the jacks do not, doors and windows take the strain.
How a Local Pro Fixes It
A local pro works on a schedule, not an emergency. For the first three years the jacks are checked every 6 months and turned in small, even steps — never more than a fraction of an inch at a time — so the house stays level as it settles. Jambs are re-plumbed, trim is eased or replaced, and rough openings keep the 2-3 in of clearance doors and windows need to ride out the movement. Map out the timeline for your own home with the log settling and screw jack estimator, then have a pro make the actual turns.
How Much Does It Cost to Fix?
Settling work is mostly labor and timing, and catching it on the 6-month schedule keeps it cheap: shims, jack pads, and a few hours of a pro's time beat a door that has to be rebuilt or a window that has to be re-set later. Homes that skip the schedule pay for racked frames, cracked glass, and water working into the new gaps — which is why smart owners fund it ahead of time with the numbers in our log home maintenance reserve fund guide. The only way to price your own job is to have a local pro measure how far the house has actually settled; fill out our form or call (865) 601-8816 for free matching from up to 3 pros — no cost, no obligation.
When to Call a Pro
If a door will not close, a window binds hard, a jack is visibly off its footing, or new gaps are opening between logs, do not wait for the next 6-month check. Left alone, settling gaps let rainwater in where it starts rot — if that has already begun, start with our guide to saving a rotting log cabin before anything else.
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Frequently Asked Questions About Log Settling
How much does a log home settle in the Smokies?
Count on the big movement in the first three years. Air-dried logs installed around 22% moisture dry toward the roughly 8% they reach inside a heated home, and at about 0.22% shrink per 1% moisture drop that is roughly 3.08% of wall height — close to 3.7 in on a 10-ft wall. Screw jacks are built to absorb 2-4 in of that movement over years 1-3.
How often should screw jacks be checked?
Every 6 months for the first three years, then at least once a year after that. Jacks should be turned in small, even increments by someone who can read how the house is actually bearing. A local pro checks all of them on one visit so a single corner does not end up doing all the work.
Why do doors and windows need a 2-3 in gap?
That gap is settling room above the rough opening. As the logs above shrink and the house settles, the header moves down with them. With 2-3 in of clearance the frame can move without crushing the jamb or the glass. If the gap is gone and the door binds, a pro reopens the opening and rehangs the frame.