Gapping solid wood floor in Rosyth — properly diagnosed
Solid wood moves — that's not a defect, it's the material. But when boards in Rosyth start showing 5mm winter gaps, something is off in the humidity or ventilation of the room, and the fix isn't always filler. We start with a two-week humidity log, check underfloor ventilation, then decide between stabilising the room, re-laying in a stable month, or sliver-filling for character.
Rosyth homeowners often wait too long on this one — the fix is cheaper the earlier we look.
From £280 humidity survey + treatment plan; re-lay from £22/sqm
Diagnostic 1 day, remedial work 1–4 days
Specialist fitters only
Wood floors move with humidity — chasing every gap without stabilising the room is money badly spent.
Symptoms we look for
Match two or more of these and it's very likely gapping wood boards.
- 01Visible gaps between boards, often 2–8mm wide
- 02Cupped edges — plank sides higher than centres
- 03Board ends lifting near external walls
- 04Squeaks that only appear in dry winter months
What causes it
Room humidity swinging outside the 40–60% comfort band
New central heating in an unaerated period property
Boards fitted too dry (or too wet) at install
Missing air-bricks under the joists — no ventilation
Affects: Solid oak · Solid pine · Original Victorian pine boards
"Not sure if it's really gapping wood boards? We diagnose in Rosyth for free — no obligation to fix with us."
How we fix it
- 1
Log room humidity for 2–3 weeks — establish the swing
- 2
Check underfloor ventilation and clear or install air-bricks as needed
- 3
Reversible-solutions first: humidifier / dehumidifier in season
- 4
For >4mm gaps — lift and re-lay tight in a stable month, or fill with matched slivers on Victorian floors
- 5
Refinish with an oil rather than lacquer to allow seasonal movement
Where DIY goes wrong
Filling with rigid wood filler — cracks out within one season
Sanding cupped boards flat before they've stabilised — leaves them thin and dished
ROSYTH PROOF
Recent Rosyth homeowners
"Straight talk. Told us what was wrong, what would fix it, and what didn't need doing. Job done in Rosyth."
— Rosyth homeowner
"Was quoted a full re-lay by someone else in KY11 — these guys sorted it as a repair for a fraction."
— Rosyth homeowner
"Straight talk. Told us what was wrong, what would fix it, and what didn't need doing. Job done in Rosyth."
— Rosyth homeowner
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Fix gapping wood boards in Rosyth — properly, first time.
KY11 · diagnostic visit · fixed quote · own fitters