Solid wood floorboards shrink and swell with the seasons, but old boards can develop permanent (if changing) gaps.
Fixing Gaps In Wood Floors. After scraping cleaning out of the gaps, your wood floor will likely be covered in loose debris. The shrinkage causes gaps in the flooring, especially in older homes.
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This prevent unsightly gaps and maintains the aesthetic integrity of the wood flooring. Available in a variety of styles and colors, wood fillers offer an attractive alternative to the approach of trying to create your own flour paste to fill your gaps. Conversely, excessively dry conditions or too much direct sunlight can also be the cause behind floor gaps by causing wood to shrink.
Gapping occurs when wood floors lose their moisture content.
Minwax makes an epoxy wood filler that is stainable. If the gaps in your wood floor are smaller and more cosmetic, a prefabricated wood filler or a wood dust and wood flour cement mix would be good options. If/when the relative humidity drops, the all planks have about 1/2″ gap in between due to shrinkage over time. Refinish the board with varnish, polyurethane, or a similar product to match the rest of your floor.
