Choosing Flooring for a Vallejo or Benicia Victorian: Working With Original Old-Growth Fir

Is there an original wood floor under my carpet?

If your Vallejo or Benicia house was built before about 1940, almost certainly — and it is most likely old-growth Douglas fir.

Vallejo's Heritage District, St. Vincent's Hill and the streets around downtown are dense with Victorian, Queen Anne and Craftsman houses built between the 1870s and 1920s, when Mare Island was the largest employer in the North Bay. Benicia's Historic District goes back further still — the town was California's third state capital in 1853.

Nearly all of them were floored in Douglas fir. And nearly all of them got carpeted somewhere between 1960 and 1985.

How do I check?

Lift a corner. Choose somewhere inconspicuous — inside a closet, behind a door, or in the corner of a room where furniture sits. Carpet is held at the edges by tack strip; a corner will come up with a pair of pliers and go back down without anyone noticing.

What you are looking for underneath is either a wood floor or a plywood subfloor. If it is wood with visible grain and board seams running the length of the room, you have a floor. If it is large sheets, you do not.

It takes about ten minutes and it is worth doing before you spend anything on new flooring.

Why is old-growth fir worth keeping?

Because it cannot be bought.

Old-growth Douglas fir came from trees that stood for two or three hundred years before they were cut. Those trees grew slowly, which produced extraordinarily tight growth rings — twenty, thirty, sometimes more to the inch. Modern plantation-grown fir has rings you can count from across the room.

That tight grain is why a hundred-year-old fir floor looks the way it does, and it is why nothing currently milled resembles it. When a fir floor gets covered over or torn out, that material is gone.

But fir is soft. Doesn't it dent?

Yes. Douglas fir sits around 660 on the Janka hardness scale against red oak's 1,290 — roughly half as hard. It dents, it marks, and it always has.

Here is the thing worth understanding: it dented for the first hundred years too. The marks in a Victorian fir floor are the record of a century of people living in the house. They are the reason the floor looks like a Victorian floor rather than a new floor.

The mistake we are most often called in to correct is somebody trying to make fir behave like oak: sanding out every mark, filling every gap, and finishing it to a high gloss. What you get is a thin, characterless floor that no longer looks old and does not look new either.

How should an old fir floor be refinished?

With a much lighter hand than oak.

Sanding. Fir cuts fast. An operator used to oak will take too much off, and on a floor that has already been sanded once or twice there is not much to spare. The right approach is the least aggressive sequence that removes the old finish and the worst damage.

Repairs. Damaged boards are cut out and woven in, ideally with reclaimed fir of a similar era. New fir next to old fir is visibly different — the grain gives it away immediately.

Gaps. Leave them, mostly. Gaps in a 120-year-old floor are seasonal movement across a very long time, and they will keep moving. Rigid filler cracks out within a couple of winters. Genuinely large gaps can be fitted with a wood sliver of matching species.

Finish. Something that shows the grain rather than burying it. Matte and satin water-borne finishes look right on fir; high-gloss does not. An amber-toned oil finish suits some Craftsman interiors, at the cost of a much longer cure.

What about the crawl space?

Check it before you refinish anything.

Older Vallejo and Benicia houses sit on raised foundations, and many of those crawl spaces have bare earth and inadequate venting. Moisture evaporates upward into the underside of the floor while the room above stays dry, and that gradient is what causes cupping.

Refinishing a floor that is going to keep cupping is money spent twice. A vapor barrier over the earth costs a small fraction of a floor and fixes it at the source. In waterfront Benicia especially, where marine humidity is constant, this is close to universal advice.

What about lead paint?

Houses built before 1978 may contain lead-based paint, and every Victorian in both towns predates it by decades. Sanding near painted baseboards and door casings can disturb it, and the EPA's Renovate, Repair and Painting rule governs how that work is handled.

Raise it when you get the estimate rather than on the first day of work, so containment is planned rather than improvised.

What if the floor genuinely cannot be saved?

It happens — rot from a long-term leak, or a floor already sanded to the fasteners. Two reasonable paths:

1. Reclaimed fir. Salvaged old-growth material from buildings of the same era. Not cheap and not always available, but it is the only way to get the real thing.
2. New flooring that does not pretend. If the original is gone, a well-chosen white oak floor in a period-appropriate width and finish reads as an honest later addition. That is better than a modern product imitating fir badly.

What about additions and later work?

Most of these houses have been added to. A 1905 house with a 1978 kitchen extension has two subfloor types and often two floor heights.

Our preference is to let the eras show, deliberately. A designed transition at a doorway — a change of direction, a threshold, a different but sympathetic species — reads as honest. Trying to make the whole house look like one continuous 1905 floor rarely convinces anyone.

Related reading

• Flooring in Vallejo and in Benicia
• Hardwood floor refinishing
• Refinish or replace: how to tell if your floors can be saved

Sources: EPA Renovate Right, USDA Forest Products Laboratory on wood properties, National Park Service Preservation Brief 18: interiors.