Floor Refinishing in Dixon

Dixon Conditions That Affect Floor Refinishing

Dixon sits at about 62 feet in Solano County. The regional Sacramento Valley record shows summer air cycling widely within each day rather than staying uniformly dry. In the National Weather Service publication "Climate of Sacramento, California" (revised August 2010), average relative humidity at Sacramento is 78 percent at 4 AM against 30 percent at 4 PM in July, a swing of roughly 48 points inside the same day. Those are Sacramento readings taken about 20 miles from Dixon, not local measurements.

Seasonal Gaps in Dixon Floors, by the Numbers

Seasonal gaps between boards are a common reason people ask about refinishing, and Dixon's measured climate shows how much of that gapping is simply the wood moving with the seasons. Measured at University Airport, Davis, then brought to 70°F, the air averages 37.4% relative humidity over the heating season and 56% over summer, which settles wood at roughly 7.3% and 10.3% moisture content. For a traditional 2¼-inch oak strip floor that is about 0.025 inch of seasonal shrinkage per board (about 1/39 inch); for 5-inch plank, about 0.056 inch. Gaps in that range that open in winter and close by summer should not be filled — filler packed into a winter gap gets crushed out, or pushes the boards toward cupping, once the wood takes its moisture back.

Source: Hourly ASOS dewpoint observations 2015–2025, Iowa Environmental Mesonet (Iowa State University); equilibrium moisture content from USDA Wood Handbook FPL-GTR-190 Eq. 4-5; movement from FPL-GTR-282 Eq. 13-3 and Table 13-5

What's Under the Finish

Dixon sits on the most uniform and least seasonally active ground of any city in this service area, and that is measurable rather than impressionistic. USDA-NRCS SSURGO maps just six soil units inside the city limits — the fewest anywhere in this set — and a single one, Yolo silty clay loam, accounts for 69.0% of the incorporated area. Not one unit in Dixon reaches the threshold NRCS uses for high shrink-swell. The most expansive soil in the city, Capay silty clay loam at 11.3% of the area, has a linear extensibility of 5.8%, which is upper-moderate; the dominant Yolo unit is 3.7%. For a floor this cuts two ways. Seasonal subgrade movement is a smaller factor here than in the Coast Range foothill towns, so slab curl and seasonal cupping traceable to swelling clay are less likely to be the explanation for a problem floor. But it also removes an excuse: where a Dixon floor does move, the ground is unlikely to be why, and the subfloor, the moisture content at installation, or the interior humidity cycle should be looked at first.

A slab affects what can be refinished at all. Wood over concrete is usually engineered or glued-down, and an engineered floor can only be sanded if its wear layer is thick enough to survive it — some can take a full sanding, many can take one light pass, and some cannot be sanded at all. We measure the wear layer before quoting rather than after starting.

Raised floors are where the best refinishing candidates live: solid wood over a crawlspace, often with decades of wear and plenty of thickness left. It is also where cupping comes from. Sanding a cupped floor flat before the crawlspace moisture is fixed produces a floor that goes concave the other way once it dries — so the moisture reading comes first and the sanding comes second.

Source: NAHB analysis of the Census Bureau Survey of Construction, foundation type by region (2024)

Dixon Homes We Work In

ACS 2020-2024 five-year estimates count 7,121 housing units, spread unusually evenly across four decades: 18.6% built 1970-1979, 17.5% built 1990-1999, 16.1% built 1980-1989, and 15.3% built 2000-2009. Pre-1940 units account for just 0.7% of the stock. Construction continues, with 6.0% of units built 2020 or later. Dixon's 1970s, 1980s, 1990s, and 2000s stock is where refinishing pays off most: homes of that period often have original wood under carpet, and when the wear layer is intact, refinishing keeps a floor that cannot be bought new. We check thickness at a vent or a doorway before recommending it.