Flooring Materials
Engineered Hardwood Flooring in Philadelphia, PA
Engineered hardwood is real wood on top of a plywood or composite core. The core is what makes it behave: cross laid plies move much less than a solid board, which is why this is the wood floor that can go over concrete, below grade and over radiant heat. What it costs you is thickness, and the number that matters is the wear layer.
In short
Deco Hardwood Floor supplies and installs engineered hardwood flooring for homeowners within 50 miles of Philadelphia, with the material bought direct from the distributor and the slab tested before anything is glued. Engineered hardwood is a real wood wear layer bonded to a core of cross laid plies. It is the right call over concrete, below grade and over radiant heat, where a solid board would cup. The result is a wood floor that stays flat in those rooms, with a refinishing future set by the thickness of its wear layer.
At a glance
- What it is
- A real wood wear layer bonded to a stable core
- The number that matters
- Wear layer thickness, not total thickness
- Sandable
- Sometimes once or twice, sometimes never. It depends on that layer
- Where it goes
- Over concrete, below grade, over radiant heat
- Material
- Supplied by us, direct from the distributor
The wear layer is the whole spec, and the box rarely leads with it
Total thickness tells you almost nothing: two floors that both say half an inch can have a four millimeter wear layer or a one millimeter veneer, and only one of them can ever be sanded.
The top layer is the only real wood you will ever see or sand. Below it is core, and core is not a floor, it is a substrate. A thick wear layer behaves like a thin solid floor and can take a refinish; a thin veneer is a finish surface for life, and sanding it takes the wood off and shows the plies underneath.
This is the single most common surprise we run into on engineered floors: the homeowner was told the floor was real wood, which is true, and assumed that meant it could be sanded, which often is not.
So the question to ask before buying is not the total millimeters. It is how many of those millimeters are above the core, and whether the manufacturer will say so in writing.
If a floor cannot be sanded, its finish is the whole product. That makes the finish quality worth more attention than the species name on the box.
Why it is the answer over concrete
Cross laid plies pull against each other instead of moving together, so an engineered board stays flat where a solid board would cup, which is what makes it the right floor over a slab.
A solid board is one grain direction, so it swells and shrinks across its width as a unit. An engineered board is layers glued at right angles to each other, and each layer restrains the next. The result moves a fraction as much for the same change in moisture.
That stability is why engineered goes where solid should not: over a concrete slab, in a basement, and over radiant heat, where the floor is being warmed and dried from below every winter.
It also changes how the floor is installed. Engineered can be glued to a slab, floated over an underlayment, or nailed to a wood subfloor, and which of the three applies depends on what is under the room rather than on preference.
Moisture still gets tested, even though the floor is stable
A stable floor over a wet slab is still a floor over a wet slab, so the concrete gets tested before anything is glued to it.
Concrete releases moisture for a long time, and a slab that looks dry on top can be well above the level an adhesive will tolerate. The industry answer is measurement, not a look: relative humidity probes set into the slab, or a calcium chloride test, both with published procedures.
The cost of skipping that test shows up months later as adhesive failure or cupping, and by then the floor is down. It is one of the few places in this trade where a cheap test prevents an expensive redo.
Acclimation matters here too, though less than with solid. The boxes sit in the house, in the conditions the floor will live in, before anything is opened.
When is engineered hardwood the right choice?
Engineered hardwood is the right choice when the room has a condition solid wood cannot live with: a concrete slab, a basement, radiant heat or a tight height limit. Six situations point to it.
The floor under the room is concrete
A slab gives a nail nothing to hold. Engineered boards can be glued to concrete or floated over an underlayment, which is how wood gets into that room.
The room is below grade
A basement slab passes ground moisture into the room all year. Cross laid plies stay flat in conditions that would cup a solid board and keep it cupped.
There is radiant heat in the floor
Radiant heat warms and dries the boards from below every winter. The cross laid core tolerates that cycle, which a solid board generally does not.
Floor height is tight
Engineered boards come thinner than solid ones, which helps where a new floor has to clear door bottoms, appliances or the first step of a stair.
You want wide planks
A wide solid board moves more across its width with the seasons. A wide engineered plank moves a fraction as much, so gaps and cupping stay small.
It is a condo or an upper floor slab
Many condominium buildings are concrete between floors and often require a sound underlayment. A floated or glued engineered floor is made for that assembly.
How to read an engineered floor before you buy it
Find the wear layer number
Not total thickness. This decides whether the floor can ever be sanded.Look at what is under the room
Slab, joists, radiant heat. This decides the installation method.Test the slab
Relative humidity or calcium chloride, before anything is glued.Choose glue, float or nail
Decided by the substrate, not by preference.Let the boxes acclimate
In the room, in the conditions the floor will live in.Check the finish
On a thin wear layer, the factory finish is the whole product.
What you get when we supply your engineered hardwood
We supply the engineered hardwood together with the labor, bought direct from the distributor at the store price. That covers the material and the installation. It does not turn a thin veneer into a floor that can be sanded.
Included
- Engineered hardwood bought direct from the distributor, at the store price.
- The wear layer thickness told to you before you choose, not only the total thickness.
- Samples and larger offcuts brought to your house.
- A moisture test of the concrete slab before any adhesive goes down.
- The installation method chosen by the substrate: glued, floated or nailed.
- Boxes left to acclimate in the room before they are opened.
Not included, or quoted separately
- A firm price before the owner has seen the room and the substrate.
- A cure for a wet slab. A stable board over wet concrete still fails at the adhesive.
- A promise that the floor can be sanded later. That depends on the wear layer.
- Finding the source of basement water. That comes before any floor.
What changes the price of engineered hardwood flooring
The price is set after the owner sees the room and what is under it. The wear layer and the species on top move the material most. The installation method and the preparation of the slab move the labor most.
| What changes it | How it moves the price | Example |
|---|---|---|
| Wear layer thickness | A thicker layer of real wood costs more to make. It is also the part that decides whether the floor can be refinished. | Two boards of the same total thickness can sit far apart in price because one has a thick sawn wear layer and the other a thin veneer. |
| Species and face | The species on top and how it was cut set the look and the cost. A sawn face usually costs more than a rotary peeled one. | A sawn white oak face and a rotary peeled face on similar cores are different products. |
| Installation method | Gluing to a slab takes adhesive and more labor than floating over an underlayment or nailing to a wood subfloor. | The same boards usually cost less to nail over plywood upstairs than to glue down in the basement. |
| Slab moisture and flatness | A slab that tests high for moisture or is out of flat needs mitigation or leveling before the floor goes down. | A basement slab with a dip where a wall once stood needs filling before any board is glued. |
| Factory finish | On a floor that cannot be sanded, the finish is the whole product, and a tougher factory finish adds to the material cost. | Two engineered oak floors with the same wear layer can differ only in the finish applied at the factory. |
What to ask before you buy engineered hardwood
These six questions work with any store or installer, not only with us. A good answer comes with a number or a document. A bad one repeats that the floor is real wood and stops there.
How thick is the wear layer?
This is the question that decides whether the floor can ever be sanded. A good answer is a number in writing. An answer that gives only total thickness is avoiding the question.
Is the face sawn or rotary peeled?
A sawn face looks like a solid board and is usually thicker. A rotary peeled face is a thin sheet with a wide, plywood like grain. The box rarely says which.
What is the core made of, and how many plies?
The core is what keeps the board flat. A good answer names the material and the ply count. 'Engineered' alone covers everything from cross laid plywood to a composite core.
Has the slab been moisture tested, and how?
A good answer names a method with a published procedure, such as relative humidity probes or a calcium chloride test. Looking at the concrete and calling it dry is not a measurement.
Will this floor be glued, floated or nailed, and why?
The substrate decides the method, not habit. A good answer starts from what is under your room. A bad one is the same method the installer uses on every job.
Is this product approved for radiant heat?
Not every engineered floor is. The manufacturer states it in the installation instructions, along with a limit on surface temperature. Ask to see that page before the boxes are ordered.
Why homeowners hire Deco Hardwood Floor
Deco Hardwood Floor is owner operated: the person who quotes engineered hardwood is the person responsible for it, and the material comes with the labor in one number.
Material and labor in one number
We buy the flooring direct from the distributor and pass the store price through, so you are not sourcing wood on your own between quotes.
Samples come to your house
Samples and larger offcuts come to you, so the color gets chosen in your own light instead of under a showroom lamp.
Stairs and railings built in house
Treads, risers, handrails and newel posts are drawn and built by our own crew. Most flooring crews subcontract stair work or decline it.
The owner quotes the job
The person who measures your floor is the person responsible for the work. There is no salesperson in between.
Measured before it is promised
Remaining thickness is measured at the edge of a board before we say a floor can be sanded, and no price is firm before we have seen the room.
Told straight, including the limits
Vacuum extraction catches most of the sanding dust and not all of it. We tell you that before the job instead of after.
More about who we are and what we will not claim on the About Deco Hardwood Floor page.
Questions about engineered hardwood
Is engineered hardwood real wood?
The top layer is real wood, and it is the only part you see. Below it is a plywood or composite core, which is what makes the board stable enough to go over concrete.
Can engineered floors be sanded?
Sometimes once or twice, and sometimes never. It depends entirely on the wear layer thickness, which is the number worth asking for before buying.
Can it go in a basement?
Yes, and that is the main reason it exists. Solid wood cups below grade; engineered stays flat. The slab still gets moisture tested first.
Is it worse than solid hardwood?
It is different. Over a wood subfloor above grade, a solid floor gives you more refinishes. Over a slab, a solid floor gives you a problem, and engineered is simply the correct answer.
Does it work over radiant heat?
Yes, which solid wood generally does not. The floor is being dried from below every winter and the cross laid core is what tolerates that.
How long does an engineered hardwood floor last?
It depends on the wear layer and the finish more than on the name. An engineered hardwood floor with a thick sawn wear layer can be refinished once or twice and kept for decades. One with a thin veneer lasts as long as its factory finish does, because sanding would expose the plies. Ask for the wear layer number before comparing two floors.
Should engineered hardwood be glued, floated or nailed?
The substrate decides. Over a concrete slab, engineered hardwood is glued or floated. Over a wood subfloor it can be nailed. A glued floor feels solid underfoot and depends on a dry, flat slab. A floated floor goes down over an underlayment and can sound hollow if the substrate is not flat. Deco Hardwood Floor chooses the method after seeing what is under the room.
Is engineered hardwood waterproof?
No. Engineered hardwood is real wood on a plywood or composite core. It handles changes of moisture in the air much better than solid wood does, and it does not handle standing water. A leak or a flood that sits on it or under it will still damage it. In a room that gets wet as a matter of routine, vinyl plank is the material made for that.
Can engineered hardwood match my existing solid floor?
Sometimes at a doorway, rarely as one continuous floor. A prefinished engineered hardwood board beside a site finished solid floor reads as a different floor, even in the same species. Where the rooms are separated by a threshold, a close species and tone is usually enough. Deco Hardwood Floor brings samples and larger offcuts to the house so the two can be compared side by side.
What can go wrong with an engineered hardwood floor?
Most failures start under the floor, not in it. Engineered hardwood glued to a slab that was never moisture tested can lose its bond or cup months later. A floated floor over a substrate that is not flat flexes and sounds hollow. The other common regret is buying a thin veneer and finding out years later that it cannot be sanded.
Engineered terms, defined
- wear layer
- The layer of real wood on top of an engineered board, and the only part that is seen or sanded. Its thickness decides whether the floor can be refinished.
- core
- The structural layers under the wear layer, made of cross laid plywood or a composite. It keeps the board flat and is never meant to be seen.
- ply count
- The number of layers glued together in the core, each laid at a right angle to the next. More plies generally mean a more stable board.
- sawn face
- A wear layer cut from the log with a saw, the way solid lumber is. It shows the same grain as a solid board and is usually thick enough to sand.
- rotary peeled
- A method of cutting veneer by turning the log against a blade, the way plywood veneer is made. It yields a thin face with a wide, wandering grain, usually too thin to sand.
From the blog
Solid or engineered, and why the basement decides
The choice is presented as taste. It is usually settled by what is under the room, before anyone gets to taste.Wide plank flooring, and what changes with the width
A seven inch plank moves about three times as much as a narrow strip. Everything about choosing and installing one follows from that.
Related work
Send a photo and we will tell you what you are looking at
Engineered Hardwood starts with someone reading the house. We quote every job ourselves, with no salesperson in between, and a photo of the floor gets you a straight answer faster than a form does.
