Hardwood Flooring in Burlingame

Burlingame Conditions That Affect Solid Hardwood

Derived statistic, not a published normal: averaging NOAA Local Climatological Data hourly observations at San Francisco International Airport, the nearest reporting station, across the ten Julys 2015-2024 (Local Standard Time) gives 83.5% relative humidity at 04:00 (n=690) and 61.3% at 16:00 (n=627) — a daily swing of about 22 points, among the narrowest of the peninsula stations checked. NOAA's published table gives Sacramento a July afternoon mean of 29%.

The nearest NOAA station, San Francisco International Airport, records 1991-2020 January normals of 58.0°F average high and 44.5°F average low, with an annual precipitation normal of 19.6 inches. Winter runs the same cycle in reverse. Solid hardwood is a hygroscopic material: it moves with the seasons for its whole service life, and an install that ignores that is an install that telegraphs every season change through the floor.

Burlingame sits on the bay side of the northern peninsula, within the marine layer's reach. San Francisco International Airport, the nearest station, normals at a July high of 72.6°F — between San Francisco Downtown at 66.3°F and Redwood City at 81.0°F further south. The marine influence on Burlingame works in solid hardwood's favor — it moderates the humidity swing that drives seasonal movement — but it also means the wood should acclimate to the house rather than to a delivery truck or a garage.

Subfloor and Foundation Work

Burlingame's ZIP 94010 appears on the state's 2025 Earthquake Brace + Bolt eligibility list. The California Residential Mitigation Program states that 'an EBB seismic retrofit is only done on wood-framed, pre-1980 homes with a raised foundation,' targeting cripple walls in crawl spaces beneath the structure. Burlingame is the strongest candidate in this service area for that construction type after San Francisco itself: 29.6% of its 13,798 housing units were built in 1939 or earlier and 79.3% predate 1980 — the highest pre-1980 share of the ten cities here. Even so, EBB ZIP eligibility is set on seismic hazard and housing age rather than foundation type, and no source publishes a measured raised-versus-slab share for Burlingame, so the age figures indicate likelihood rather than proportion and no share is claimed.

Over a crawlspace, solid hardwood is in its element — plank or plywood subfloors take fasteners well — but only when the crawlspace itself is dry. We check the ground cover, look for standing water and rot at the joist ends, and read the moisture content of the subfloor from below. Cupping in a solid floor is almost always a crawlspace problem that surfaced upstairs.

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

Burlingame Homes We Work In

ACS 2020-2024 five-year estimates count 13,798 housing units, of which 29.6% (4,086 units) were built in 1939 or earlier — the second-highest pre-1940 share in this service area after San Francisco. A further 11.3% date to the 1940s, 13.6% to the 1950s and 12.9% to the 1960s. Only 10.4% was built in 2000 or later. Burlingame's pre-1940, 1950s, and 1960s stock is directly relevant here, because homes of that period frequently have a board or plywood subfloor that will hold a nail-down installation, and sometimes original wood still under the carpet. We check for both before quoting a full replacement — refinishing what's already there is often the better answer.