Every other estimate we go out on, the homeowner already has a strong opinion about engineered hardwood. Half think it’s fake wood and won’t consider it. The other half were told by someone at a flooring store that engineered is “better than solid now” and they don’t need to look further.

Both are wrong, or at least both are missing the part that actually matters: where the floor is going.

I’ve been laying hardwood in Los Angeles since 1984. Solid and engineered both have a place in this city, and the right answer almost always comes down to what’s under the floor. The species and the finish you pick on top are the easier half of the decision. Here’s how we think about it on every estimate.

What’s actually different

Solid hardwood is one piece of wood, top to bottom. Each plank is ¾” of oak, maple, walnut, or hickory. The whole thickness is real wood, which is why you can sand it down and refinish it half a dozen times over the floor’s life.

Engineered hardwood is also real wood on the top layer. A veneer of real species wood, anywhere from 2mm to 6mm thick, is bonded to a multi-ply plywood core. When you walk on it, you’re walking on the same oak you’d walk on with solid. When we refinish it, we’re sanding the same oak. The plywood underneath doesn’t show its face. What it does is hold the floor flat when conditions change.

That plywood core is the whole point of engineered. Solid wood expands and contracts with humidity. A plywood substrate, with its grain crossed in alternating layers, barely moves. That stability is the reason engineered floors can go where solid floors can’t.

The wear-layer number is the spec that matters most for engineered. A 2mm top layer is a one-time refinish floor, maybe. 4mm gives you two real refinishes. 6mm behaves a lot like solid for refinishability over decades. The cheap engineered floors you see at big-box stores are usually 1mm or thinner. Those we don’t install, because the first contractor with an aggressive sanding pass burns right through them.

The LA subfloor problem

This is the part that decides most jobs in Los Angeles, and it’s the part most homeowners don’t know going in.

A huge share of LA homes built after about 1945 sit on a concrete slab. Tract homes in the Valley, post-war ranches in Mar Vista and Culver City, mid-century houses in Eagle Rock and Highland Park. Drive any neighborhood built in the boom years and you’re mostly looking at slab construction.

You cannot nail solid hardwood into concrete. The physics of the materials don’t allow it. To put solid wood over a slab you have two options. The first is gluing it down, which most manufacturers won’t warranty and which we don’t recommend for ¾” solid. The second is building a wood subfloor on top of the slab using sleepers and plywood, which raises the floor an inch and a half and creates problems at every doorway and threshold in the house.

Engineered hardwood glues down directly to a properly prepped slab. The plywood core was designed for it. No height buildup, no transition strips at every doorway, no warranty issues. On a slab, engineered is the right floor.

The pre-war and raised-foundation homes are a different conversation. Craftsman bungalows in West Adams, Spanish revivals in Mid-City, hillside homes in Silver Lake and Mt. Washington. Most of those have wood joists with a plank or plywood subfloor. Nail-down solid hardwood is at home in those houses, and often there’s already original oak under whatever carpet got laid over it in the 80s.

The first question we ask on a phone call is what year the house was built. That tells us most of what we need to know before we drive out.

Humidity swings that wreck solid floors

Los Angeles isn’t one climate. The marine layer in Venice and the Palisades keeps things damp most mornings. The air in Sun Valley or Burbank goes bone-dry by July. A floor that’s fine in one zip code can fail in another.

Solid wood breathes with the air around it. In a humid coastal home, planks absorb moisture and swell. The edges lift, the surface cups, and you can feel the ridges underfoot. In a dry inland home, the same wood gives up moisture and shrinks, opening gaps between boards wide enough to drop a coin into. That’s solid wood doing what wood does. We mitigate it with proper acclimation and expansion gaps, but on a hot coastal year, even a perfect install moves.

Engineered handles this better. The cross-grain plywood core resists swelling and shrinking in both directions, so the floor stays flatter through the seasons. We’ve put engineered down two blocks from the beach and seen it hold tight through five summers. We’ve also seen solid oak in the same neighborhood, installed by someone else, cup so badly the owner had to sand it twice in seven years.

If you’re west of the 405 in a home with no AC and the windows open all summer, that’s an engineered conversation. If you’re in Encino with the AC running and the house is sealed up, solid is fine.

Hillside settling and old joist systems

The other place solid hardwood earns its keep is the older hillside home. Hidden Hills, the Hollywood Hills, Bel-Air, parts of Pasadena. Houses that have been settling on their joists for forty or sixty years.

Floors in those homes flex. They have soft spots where a joist sagged. They have boards near a hearth that took heat damage in the 90s. They have a stretch by the kitchen where a slow leak ruined a square yard of subfloor.

Solid hardwood is the right answer here for one reason: we can cut a damaged board out, weave a new one in, sand the whole floor, and you can’t see where the repair was. Twenty years from now we can do it again. A solid floor is a serviceable floor for as long as anyone owns the house.

Engineered with a 2mm wear layer can’t take that kind of work. Board replacement is harder because the click-lock or glue-down patterns don’t always allow it cleanly, and the thin veneer can only be sanded once before you’re into the plywood. On a house with structural movement, that’s a problem waiting to happen.

The exception: 6mm wear-layer engineered behaves a lot like solid for repair and refinish purposes. If a homeowner wants engineered on a raised foundation for stability reasons, we’ll spec the 6mm.

The real math on refinishing

This is where the brochures lie and the salespeople hedge. Here’s the honest version.

Solid ¾” hardwood: 6 to 10 refinishes over the floor’s life. Each pass takes roughly 1/32” of material. Real-world LA jobs we’ve come back to: most are on their second or third sanding after 30 to 40 years.

Engineered with a 2mm wear layer: realistically one refinish, and that’s being generous. A light screen-and-recoat — which doesn’t remove material — is the better long-term play.

Engineered with a 4mm wear layer: two real refinishes, maybe a third if the sander knows what they’re doing.

Engineered with a 6mm wear layer: four or more refinishes. Practically indistinguishable from solid for any homeowner who isn’t planning to refinish the floor five times.

Here’s the part nobody says: most homeowners refinish a floor once, maybe twice, in the time they own a house. If a 4mm engineered floor will outlast your interest in refinishing it, the refinishability gap doesn’t matter. The marketing scares people into thinking they need a floor they can sand seven times. Most people sand twice and then sell the house.

Price reality

We don’t quote per-foot pricing online because the variables (species, grade, install conditions, demo, subfloor prep) swing the number too much for a fair estimate. But the rough shape is fair to share.

Installed solid hardwood in LA, mid-grade white or red oak, lands in a range that’s noticeably higher than installed mid-grade engineered of the same species. The gap isn’t always huge. Engineered can creep up to solid pricing if you’re picking wide-plank, long-board, premium-grade veneers, and the gap shrinks fast when slab prep for solid (sleepers, plywood, height transitions) gets added to the bid.

The real cost comparison isn’t just the install. It’s the install plus what the floor costs you over twenty years. A solid floor refinished twice in that span is cheaper than a thin engineered floor replaced once. A solid floor that cups badly on the coast and has to be redone in eight years is more expensive than the engineered floor that would have held.

The honest framing: if the house is right for solid, solid is the better long-term buy. If the house is wrong for solid, putting it in anyway costs more later.

Where each one wins

A short version, if you skipped the rest:

Engineered wins when:

The home sits on a slab (most post-war LA tract housing).
You’re on a second floor of a condo and need glue-down with sound underlayment.
You’re near the coast and the house breathes humid air half the year.
You want a wide plank (8” or 10”) — wide solid boards move more and are harder to keep flat.
You want radiant heat underneath.

Solid wins when:

The house has a raised foundation and wood joists (most pre-war LA).
There’s already original solid under the carpet and we’re refinishing instead of replacing.
You plan to stay 20 years or more and want a floor your grandkids could refinish.
You’re in a hillside home where structural settling means we’ll need to repair boards over time.
Resale matters and you’re in a neighborhood where original hardwood is the expectation.

What I’d put in my own house

If you asked me which I’d lay in a house I planned to live in for the rest of my life, on a raised foundation, in a neighborhood where the air doesn’t swing too hard, I’d pick solid white oak, ¾”, site-finished. Every time. It’s the floor I’ve installed for my own family, and it’s the floor I’d want my kids to inherit.

If the same house was on a slab, I’d put down 4mm or 6mm engineered white oak in the same wide plank, glue-down, and I wouldn’t lose any sleep over it. It’s still a real wood floor. It’ll outlast most of the furniture in the house, and it’s the right tool for the conditions.

People worry about picking engineered when they should have picked solid, or the other way around. The actual mistake is picking either one without first asking what’s under it.

If you’re in Los Angeles and weighing solid against engineered for your home, we’ll come out and look. We’ll tell you which one fits your house, what species and width we’d spec, and what it costs honestly. Free estimate, no pressure.

Get in touch for a free estimate.

We’ve been laying floors in this city since 1984. The first engineered floors we installed are still down. The solid floors we installed in the 80s are getting their second refinish now. Both still work, when they were the right call to begin with.