Hardwood, Engineered, or Vinyl: The North Shore Answer Starts With Moisture

Solid hardwood: one piece of wood, all the way through

Solid hardwood is exactly what the name says. A board is one piece of wood through its full thickness, which means the surface you walk on and the material underneath it are the same thing. That is the whole argument for it. A solid floor can be sanded and refinished many times across its life, so a floor that looks tired at year twenty can look new again at year twenty-one, and again decades later. No other option on this list can say that.

The trade-off is movement. Wood takes on and gives up moisture from the air, and it swells and shrinks across the grain as it does. A floor installed in a dry February will be wider in a humid August. That is why a solid floor needs an expansion gap around the perimeter, hidden under the baseboard, and why the material has to sit inside the house for a period before installation so it settles to the moisture level of the room it will live in. Skipping that acclimatisation period is the most common cause of gapping and cupping we get called about.

Solid hardwood is nailed down to a wood subfloor. That single requirement rules it out in a lot of the places people want it. It does not belong below grade. On a house with a concrete subfloor or a heated slab, solid hardwood is the wrong choice, and no installation trick fixes that.

Engineered wood: real wood, built to stay still

Engineered wood is a real wood wear layer bonded over a core of plywood or composite. The plies in that core run in alternating directions, and cross-laminating them that way cancels out most of the seasonal movement that solid wood has. The surface is genuine hardwood, so it looks like hardwood because it is hardwood. It just sits on a base that holds its shape.

That stability opens up installation methods solid wood does not have. Depending on the product and the subfloor, engineered can be floated, glued down, or nailed. That is why it works over concrete and over radiant heat, and it is the reason engineered has become the default for main floors in a lot of the houses we work on.

Now the part people fail to ask about. The number that decides whether an engineered floor is a twenty-year floor or a fifty-year floor is the thickness of that wear layer. A thick wear layer can take a sanding once or twice, so the floor can be brought back the way a solid floor can. A thin veneer cannot be sanded at all, because there is nothing to remove without going through to the core.

Two boxes sitting side by side in a showroom can look completely identical, feel identical underfoot, and differ entirely on this. Ask for the wear layer thickness in millimetres before you ask about anything else. If the salesperson cannot tell you, that is an answer of its own.

• Thick wear layer: can be refinished once or twice, so the floor has a second life
• Thin veneer: cannot be sanded, so damage means replacing boards
• The core matters too: plywood cores behave better than dense fibreboard cores in damp conditions
• Installation method depends on the product, so check the specification rather than the category

Luxury vinyl plank: waterproof, and honest about what it is

Luxury vinyl plank is fully synthetic. There is no wood in it, which is precisely why water does not bother it. As a material it is waterproof, and the rigid core versions (SPC, a stone plastic composite, and WPC, a wood plastic composite) hold their dimensions well rather than expanding and shrinking with the seasons.

Its strongest argument is that it tolerates the things that ruin wood. Standing water at a door in November. A dog with claws. A dropped cast iron pan. Kids. On a family house with a mudroom that gets used the way North Shore mudrooms get used, LVP does a job that hardwood simply cannot.

The limits are real and worth saying out loud. It cannot be refinished. When the wear layer wears through, the plank is replaced rather than repaired, which is why leaving a box of spare planks in the crawlspace is a good idea. And quality across this category varies more than in any other flooring product we install. Cheap LVP is thin and flexible, so it telegraphs every hump and dip in the subfloor underneath it and it reads as plastic the moment light hits it at an angle. Some products are also sensitive to sustained direct sunlight and heat, so a south-facing room with big glass is a case to check the manufacturer's specification on rather than assume.

The three materials side by side

Here is the comparison in the form the decision actually takes. Read the moisture column first and the appearance question last.

Moisture is the first question on a North Shore house

We get a lot of rain here, and it lands on houses built into slopes with basements and crawlspaces that sit in wet ground for months at a time. So the first question on any flooring job is not what the floor should look like. It is where the moisture is and where it could come from.

Below grade, over a slab, or anywhere near a moisture source, the material has to tolerate water without changing shape. That narrows the list quickly, and it is the honest reason so many North Shore basements end up with vinyl even when the owner wanted wood.

The step people skip is a moisture test on the concrete before anything goes down. A slab can look bone dry and still be passing vapour up through it, and a floor glued or floated over a slab like that will fail. It is a cheap test and it takes a day of patience. Every failed basement floor we have been called to look at was installed without one.

Slab moisture is a whole subject on its own, and we have written about the basement case in more detail separately, because the choices below grade are narrower than the choices upstairs.

The subfloor decides more than the showroom does

Open up a floor in a house built in the sixties or seventies here and you rarely find one clean, flat, level subfloor. You find the original, then a layer somebody added in the eighties, then a patch where a wall moved in 2004, and a section that squeaks because the fasteners let go years ago. Older North Shore homes have layered history under the finish.

That matters because flooring products sit on what is under them and cannot correct it. A floating floor over an uneven subfloor telegraphs every dip through to the surface, and it can sound hollow when you walk across it. A glued floor over a poorly prepared surface fails at the bond. Squeaks that exist before the new floor goes down will still be there afterwards, and they will be under a finished floor nobody wants to lift.

So levelling and preparing the subfloor is frequently the real cost in a flooring project. It is also completely invisible in the finished result, which is why it is the line item clients push back on hardest and the one we push back the other way on. A floor is only as good as the plane it sits on.

If your house is from that era, the layered subfloor is one of several things worth planning for before demolition starts.

Radiant heat, height, and the transitions nobody plans for

Radiant heat under the floor rules some products out and limits others. Wood over a heated floor has to be a product built for it, and the answer is in the manufacturer's specification for that exact product rather than in a general rule about the category. Two engineered floors from the same shop can differ on this. Ask before the order goes in, not after the boxes arrive.

Then there is height, which sounds trivial and causes more site problems than anything else on a flooring job. Every material has a thickness, and so does the underlay beneath it. Change that total and you change the relationship between the floor and everything that meets it: the bottom of every door, existing thresholds, the gap under a dishwasher, the clearance a fridge needs to slide into its opening.

Stairs are where this becomes serious. Adding thickness at the top of a stair run changes the height of the top riser, because the landing rises while the tread below it does not. Small differences in riser height are exactly what makes people trip, and they get noticed at inspection. On a house where the flooring is going down across a full floor with a staircase in it, the stair detail gets planned at the same time as the floor, never after.

• Door bottoms: adding height may mean every interior door on that floor needs trimming
• Appliance openings: dishwashers and fridges have finite clearance and a thicker floor can eat it
• Existing thresholds at tile or a different room: the transition strip has to work at both heights
• Top and bottom risers at a staircase: riser heights change if the floor height changes

Stairs and flooring are one decision, not two

Stair treads and the floor they connect to have to be coordinated from the start, and this is one of the commonest places a flooring job goes visibly wrong. The species, the stain, the sheen, and the grain direction all have to agree, and matching a stair tread to a floor after the floor has been ordered is much harder than specifying both together.

Floating floors bring an extra problem. A floating floor needs to move slightly, and a stair nosing has to be fixed solidly. Joining a material that moves to a component that must not move takes a proper detail, and the cheap approach (a bullnose glued on the end and hoped for) is where you get lifted edges and a nosing that comes loose under traffic. This is worth talking through with whoever is doing your stairs before the flooring is bought.

Suites, sound, and the neighbours below

If there is a suite in the house, the floor above it stops being only a finish and becomes part of the separation between two households. Hard flooring transmits impact noise downward, and footsteps on a hard surface over a suite is one of the most common complaints we hear about in houses with rental units.

The underlay choice does real work here. An acoustic underlay under a floating floor reduces impact noise meaningfully, and it costs far less to specify it correctly at installation than to solve the problem afterwards, which usually means opening the ceiling below. If a suite is in the plan, or might be later, decide the floor assembly with that in mind now.

The original fir you may already have

Older character houses on the North Shore, and plenty of heritage homes in the Grand Boulevard and Ottawa Gardens areas, often have original fir floors under carpet or under a layer of laminate someone put down in a hurry. Before you price replacing them, get them uncovered and looked at.

Refinishing existing wood is frequently cheaper than a full replacement, and the result is usually better, because old growth fir has a tightness of grain that nothing on the market now matches. There is also less waste and less disruption, since nothing gets torn out and carried to a bin.

That is less work for us and we say it anyway, because a client who tears out a good original floor and finds out afterwards what they had does not forget it. The honest test is whether there is enough thickness left above the tongue to take a sanding, and whether the boards are sound. A flooring contractor can tell you in one visit.

The entryway, and the one floor throughout look

Entryways here take more abuse than any other part of the house. For a good part of the year everything comes in wet: boots, dogs, bikes, sports gear, and the grit that comes with them. Water sits on that floor and gets ground in underfoot. Whatever goes at the door has to handle standing water and abrasion, and a wood floor at a North Shore front entry ages faster than the same floor anywhere else in the house.

That leads to the other thing clients ask for constantly. The one continuous floor running through the whole house looks calm and makes small rooms read larger, and we like it too. It works well across a main floor and up to the bedrooms. It runs into a wall at the basement, because the material that suits a dry upper floor is often the wrong material below grade, and that is exactly the point where one choice stops covering everything.

There is a reasonable middle path. Keep one material and one tone across everything above grade so the house reads as continuous where people actually see the transitions, then choose the basement on its own terms with a colour and format that sits close to what is upstairs. A visitor never sees the two floors in the same field of view anyway. Forcing a single material down a set of stairs into a below grade room is how a good floor ends up failing in a place that was always going to be damp.

What actually drives the cost

Flooring quotes vary far more than the material price suggests, and the variation is rarely in the boxes. It is in the preparation and the detail work.

Subfloor levelling is the biggest single swing. A flat, sound subfloor means the crew lays floor. A subfloor that is out of level, squeaky, or built up in mismatched layers means grinding, patching, self-levelling compound, refastening, and sometimes a new layer of sheathing before a single board goes down. Nobody can price that accurately until the old floor comes up, which is why an honest quote for an older house includes an allowance rather than a firm number for that part.

The other cost drivers are the ones people do not picture: removing and disposing of what is there now, moving appliances and cabinets, trimming doors, stair treads and nosings, transitions at every room and material change, and reinstalling or replacing baseboard. On a house where the layout has small rooms and lots of doorways, transitions alone add up.

On the material itself, the meaningful price differences track things you can verify: wear layer thickness on engineered, plank thickness and core type on vinyl, and species and grade on solid wood. Those are the numbers to compare between quotes. Comparing two quotes on square footage alone tells you almost nothing.