Once the carpet is up, can engineered planks sit right on our slab?

Engineered is the wood that can go on concrete, glued down or floated, which solid can't. Straight onto the slab means once it has passed a moisture test, with a vapor retarder if the readings call for one. Carpet comes up first, and the tack strip with it. Testing is on our Hardwood Floors Over Concrete page.

How thick a wear layer is worth paying for?

HomeGuide describes wear layers of 2 to 6 mm. Under 2 mm is risky to sand at all, while 4 to 6 mm allows several refinishes. If you plan to stay for decades, the thicker veneer is the part that pays you back. How many refinishes each thickness allows is on our Engineered Hardwood Refinishing page.

Is click-lock engineered real wood or just laminate?

Real wood. Engineered planks have a hardwood veneer bonded to cross-layered plywood or high-density fiberboard. Laminate has a plastic surface layer, which is why HomeGuide says it can't be refinished and widespread damage means replacement. An engineered veneer of 2 mm or more can be sanded, so the floor can be renewed later.

Can engineered planks go in the kitchen or a bathroom?

Kitchens, often; full bathrooms, think twice. HomeGuide says engineered is water-resistant to a degree but not waterproof, and long exposure to water can warp or swell it. Spills wiped up quickly are fine. For rooms that stay wet, a wood-look product is the safer pick, as the homepage explains.

What does the TSCA Title VI label on the box mean?

The plywood, MDF or particleboard in the core meets the federal formaldehyde emission standard. EPA says TSCA Title VI limits match California's CARB Phase II limits, and composite wood made or imported after March 22, 2019 has to carry the label. Ask to see it on the cartons.

Engineered Hardwood Installation in Torrance, CA

Torrance Wood Flooring sets you up with a crew that glues, floats or staples real-wood engineered planks. Tell us the room sizes and what's underneath, slab or wood, and they'll book a visit to measure.

Installed cost: $9 to $20 a square foot for mid-range 5-layer planks (HomeGuide); Fixr lists $8 to $14
Timeline: 1 to 3 days for most homes under 1,500 sq ft; prefinished planks can be walked on right away
Wear layer: 2 to 6 mm of real hardwood on top; 4 mm and up allows several refinishes
Method price: floating $7 to $12 a square foot, click-lock $10 to $14; glue-down labor costs more
Underlayment: $0.50 to $1.00 per square foot extra for floating floors

Engineered Hardwood Installation Methods

The same plank can be fastened three ways. Which one you get depends on what's underneath.

Engineered oak planks being set into trowel-ridged adhesive on a gray concrete floor

Glue-Down Engineered on Concrete

Gluing is the usual way to put wood on a slab. HomeGuide prices glue-down labor higher than nailing, since slab prep, adhesive and moisture-proofing all add time.

Labor: high end of the $3 to $8+ a square foot engineered range
The slab has to pass a moisture test first; the method and limits are on Hardwood Floors Over Concrete
Flatness matters more than with nailing: NWFA wants a glue-down base within 3/16 inch over 10 feet

Click-lock engineered planks laid over a thin foam underlayment roll

Floating Click-Lock Engineered

Floating planks lock to each other edge to edge and rest on an underlayment, with no nails and no glue into the floor. HomeGuide calls it the most affordable installation, and the underlayment adds moisture protection, sound dampening and cushioning.

Fixr: floating $7 to $12 a square foot installed, click-lock $10 to $14
Underlayment: $0.50 to $1.00 per square foot
A floating floor needs a level subfloor, so dips get filled first

In a condo, the underlayment also has to meet the building's sound rules; see Condo Hardwood Flooring.

Rows of engineered hardwood planks fastened over a plywood subfloor in a bedroom

Nail- or Staple-Down Engineered Over Plywood

On a raised wood subfloor, engineered planks can be stapled or cleat-nailed like solid. HomeGuide puts this at the lower end of the labor range. It's a good fit where an older wood floor came out and the plywood is sound. Moisture readings and acclimation follow the same NWFA checks as solid; see Hardwood Floor Installation.

End view of engineered hardwood planks showing the oak veneer over a layered plywood core

Wear Layer and Core Choices

An engineered plank is a real-wood veneer on a cross-layered core of plywood or high-density fiberboard, with a balancing back layer. HomeGuide's grades:

Grade	Thickness	Installed per sq ft
Budget, 3 core layers	3/8 inch	$5 to $17
Mid-range, 5 core layers	1/2 inch	$9 to $20
High-end, 7+ core layers	5/8 to 3/4 inch	$12 to $24+

The veneer runs 2 to 6 mm; how many sandings each thickness allows is on Engineered Hardwood Refinishing. Thicker veneers often come with a UV-cured aluminum oxide finish. HomeGuide rates the budget 3-layer grade for low-traffic rooms only. Look at the end of a plank: the thickness of the top layer tells you more about the floor's life than the brand name does.

Open boxes of oak flooring boards acclimating in an empty room, with a moisture meter resting on a board

Why Torrance homeowners call Torrance Wood Flooring

Free to call or use the form; the referral costs you nothing
Your request goes to one independent contractor, not a bidding list
Ask for a moisture reading and a written line-item estimate
California caps the down payment at 10% or $1,000, whichever is less

Formaldehyde Labels on Engineered Cores

The glued plywood, MDF or particleboard inside an engineered plank is regulated composite wood. California's Air Resources Board adopted its formaldehyde control measure on April 26, 2007. The federal TSCA Title VI standard uses the same limits as CARB Phase II, and composite wood made or imported after March 22, 2019 must be labeled TSCA Title VI compliant. EPA updated the rule in October 2026. Before installation day, check the label on the cartons. Boxes without one are worth a question.

Engineered or Solid on Your Floor

	Engineered	Solid
Installed (HomeGuide)	$9 to $20 per sq ft	$11 to $25 per sq ft
Over a concrete slab	Yes: glued or floated	Not directly
Seasonal movement	Less prone to expand and shrink	More prone
Refinishes	Limited by veneer thickness	Many

On a slab, engineered is usually the realistic choice. On a raised wood subfloor, both work, and the choice comes down to budget and how many sandings you want the floor to have. Neither is waterproof.