Refinished hardwood hallway in a Missoula, Montana home
Care · 5 min read

Caring for Hardwood Floors Through a Montana Winter

Cold, dry winters are hard on wood floors in two specific ways. Both are easy to manage once you know what to watch for.

By Winnwood Flooring · Updated June 17, 2026

Hardwood is a natural material, and it responds to the air around it. In western Montana, winter brings two things that affect every wood floor: very dry indoor air, and a steady supply of grit, snowmelt, and ice-melt salt tracked in at the door. Manage those two and your floors come through winter fine.

Dry air and gapping

When the furnace runs for months, indoor humidity drops. Wood gives up moisture and shrinks slightly, which can open thin gaps between boards. This is normal and usually closes back up in spring as humidity rises.

You can soften the swing by keeping indoor relative humidity in roughly the 35-50% range with a humidifier. Steadier humidity means less movement, and less movement means a flatter, quieter floor year-round.

Grit, salt, and scratches

The fastest way to wear a finish is sand and grit underfoot acting like sandpaper. Ice-melt salt is worse - it is abrasive and can leave a white haze on the finish.

  • Use a sturdy mat at every exterior door and a second one just inside.
  • Take shoes off where you can, especially anything that has been on salted pavement.
  • Sweep or dust-mop high-traffic paths often through the winter.
  • Wipe up snowmelt and salt promptly - standing water is hard on any wood finish.

Clean without damaging the finish

Skip the steam mop and the vinegar-and-water mixes - both can dull or degrade a wood finish over time. Use a cleaner made for hardwood, applied to the mop rather than poured on the floor.

If your finish already looks dull or worn in the traffic paths come spring, that is a sign it is ready for a recoat - a quick, low-cost refresh before the wood itself takes any wear.

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Questions

Frequently asked

Why do my hardwood floors gap in winter?

Dry winter indoor air pulls moisture out of the wood, so boards shrink slightly and thin gaps appear. It is normal seasonal movement that usually closes again in spring. Keeping indoor humidity around 35-50% reduces it.

Can I use a steam mop on hardwood floors?

No. Steam forces heat and moisture into the wood and finish and can cause dulling, cupping, or finish failure over time. Use a hardwood-specific cleaner applied to a microfiber mop instead.

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