Wood flooring

Written by Seamus McKale

Updated June 24, 2024 | Published January 8, 2020

From rustic cabins to ultramodern condominiums, there is no type of home where wood floors feel out of place. They’re durable, easy to install, and nice to look at. It can also be a great way to add colour to a living room or home office. Read on to find out everything you need to know about hardwood floors.

Getting to know wood floors

What is wood flooring?

Wood floors come in myriad shapes and sizes. The most common type of wood floor by far, though, is built from planks. Both solid wood and engineered hardwood floors are made from planks laid side-by-side. Wood flooring may also come in the form of parquet, or sheets of cork. We’ll get to those a bit further down the page.

For now, let’s look at the most common methods used to construct wood floors.

What types of wood flooring are there?

There are many ways to subdivide types of hardwood flooring. There’s the manner by which it’s built, the way it’s finished, the species of tree it was cut from… the sheer number of options available can be a bit overwhelming.

Let’s break things down a bit.

Solid hardwood vs. engineered hardwood

Solid hardwood

Solid hardwood is what probably comes to mind when you think of hardwood floors. These floors are made of planks cut from a single piece of wood. The top of each plank is finished by coating it with a protective layer of polyurethane or wax. Sometimes, the wood is also stained to alter its colour.

Solid hardwood planks can be purchased pre-finished or finished onsite after they’ve been installed. The boards have interlocking tongues and grooves running along their edges. These tongues and grooves snap together like Lego. The boards are then stapled or nailed to the subfloor.

Solid hardwood is robust. When properly installed and cared for, it can last as long as the house it sits in. There are heritage buildings over a century old that still have their original hardwood floors.

Here’s the downside:

The Achilles Heel of hardwood flooring is moisture.

In the National Post, contractor Mike Holmes writes, “The main problem with solid hardwood is that it shrinks and expands depending on the humidity in your home. In the winter when it’s drier, hardwood floors will shrink. When there’s more moisture in the air, like in the spring or summer, hardwood expands.”

Consequently, hardwood doesn’t do well below-grade (in a basement) or in a room where it’s likely to get wet (bathrooms and kitchens). If a hardwood floor experiences a flood, there’s a reasonable chance that it will need to be replaced.

Engineered hardwood

In contrast, Engineered hardwood is a thin layer (the wear layer) of hardwood on top of multiple layers of other wood (such as plywood or particle board). These layers are laminated together, with the grain direction alternating between each layer.

This construction method makes engineered wood more resistant to moisture. Holmes continues, “Engineered hardwood flooring isn’t affected by humidity as much as hardwood. It doesn’t shrink or expand, which makes it resistant to warping and cupping.”

The top layer of engineered wood is high-quality hardwood that’s been finished in the same manner as solid wood flooring. There’s no visible difference between engineered and solid wood flooring after they’ve been installed.

Engineered hardwood is installed the same way as solid hardwood. However, it also includes the option of a floating floor. “Floating” means the planks are locked together, but not fastened to the subfloor with nails, screws or adhesive.

Engineered wood, like solid wood, is sturdy. “It can also be sanded or refinished,” writes Holmes, “not as much as hardwood, but a few times over a couple decades is fine, depending on the quality.”

Contractor Tom Silva, of PBS’s This Old House, agrees. “Regardless of the species [of wood] you pick, you want to think about the thickness of the wear layer, or veneer. If the veneer is thick enough, you can sand it two or three times,” says Silva of engineered hardwood.

Side by side comparison of two different types of hardwood


Other types of wood flooring

In addition to the aforementioned types of wood floors, there’s also cork flooring and parquet flooring.

Like the cork in a bottle of wine, Cork flooring is made from the bark of the cork oak tree. It’s easy to install and maintain, and offers great insulation from heat and sound. It’s very soft, however, and heavy furniture can leave permanent indentations.

Parquet flooring features numerous small wood pieces laid in patterns, such as herringbone or chevron. It’s a great look if you dig the classical vibe. Parquet is easy to install, but can’t be re-finished the way a solid wood floor can.

Surface textures

Both primary construction methods come with different options for the surface texture. There are four common textures seen in hardwood floors for homes:

  • Hand-scraped boards have an almost wave-like texture. They add depth to the look of the floor, and can help hide scratches and blemishes.

  • Wire-brushed flooring features a more uniform look while still adding depth. Even more so than hand-scraped floors, wire-brushed wood hides surface damage.

  • Smooth wood floors are just that: smooth. They don’t feature any surface texture. The smooth option is great when you want to highlight the wood grain pattern of your floor.

  • Distressed floors give a home the rustic feeling. They feature an irregular texture that mimics that of old, well-worn wood floors.

Wood species

Nearly any type of wood can be milled into floorboards. Different species of tree feature different grain patterns and colours. Matching your floor to your decor is one thing to think about. There is, of course, also the price difference to consider; imported Brazilian cherrywood is a touch more expensive than locally-produced poplar. And finally, one of the biggest differences between different species is the hardness.

Wood hardness is measured using the Janka hardness test. The test measures how much force is required to push a steel ball halfway into the wood. The higher the Janka number, the harder the wood. When it comes to floors, harder wood is more resistant to damage from furniture, pets, or accidents. It’s also usually more expensive.

Here’s a rundown of 19 of the most popular wood species for floors, organized from hardest to softest:

Sample Species Janka value (lbf) Notes
What ebony wood flooring looks like Ebony 3,220 Hard, heavy, and strong. Expensive and unsustainable (many species of Ebony are endangered), so rarely used anymore.
What bamboo wood flooring looks like Bamboo, strand-woven 3,000 Not technically wood, but highly durable and eco-friendly.
What Brazilian Cherry wood flooring looks like Brazilian cherry 2,350 Deep reddish colour. Expensive.
What Hickory wood flooring looks like Hickory 1,820 Straight grains with a variety of colours.
What Red Pine wood flooring looks like Pine, red 1,630 Reddish colour, classic look.
What Maple wood flooring looks like Maple, sugar 1,450 Light colour, dark grain lines. Modern look.
What White Oak wood flooring looks like White oak 1,360 Brown with dark grain lines. Traditional look.
What Ash wood flooring looks like Ash 1,320 Bright and strong, but pricey.
What Beech wood flooring looks like Beech 1,300 Light colour. Durable.
What Red Oak wood flooring looks like Red oak 1,290 Brown/pinkish colour. Traditional look.
What Teak wood flooring looks like Teak 1,155 Dark colour with a natural sheen. Often harvested illegally, so only buy FSC-certified Teak.
What Walnut wood flooring looks like Walnut 1,010 Brown colour, but lightens with age.
What Maple Red wood flooring looks like Maple, red 950 Deep red colour.
What Birch wood flooring looks like Birch 910 Light colour, light grain lines. Modern look.
What Fir wood flooring looks like Fir 660 Light in colour, good dimensional stability.
What Alder wood flooring looks like Alder 590 Uniform colour with a rustic feel.
What Poplar wood flooring looks like Poplar 540 Cheap, but soft. Good for engineered hardwood.
What Western White Pine wood flooring looks like Pine, western white 420 Affordable, ages well.
What Western Red Cedar wood flooring looks like Cedar, western red 350 Beautiful red colour. Very soft.
Sample Species Janka value (lbf) Notes

What should you do when something goes wrong?

Fading or peeling finish

Some finishes are meant to be glossy. When the sheen starts to fade – and a good cleaning doesn’t bring it back – it’s probably time to refinish.

Oil-based finishes will naturally turn yellow over time. Some people desire the yellowed look, but you’ll have to refinish the floor if you prefer your wood’s natural hue.

Peeling is a sign that the finish wasn’t applied properly. It usually means the floor was dirty when the finish was applied. Unfortunately, there’s not much you can do except sand and refinish the whole floor. If the peeling is limited to one or two small areas, you might be able to get away with spot repairs.

Buckling, peaking, gapping, and other deformation

  • Buckling or peaking means the wood has started pulling away from the subfloor in places, forming peaks or heaves. This is one of the most severe deformation problems. It’s a sign of moisture issues. If a floor was installed without enough room for the wood to expand around the edges, the boards may begin to buckle in humid conditions. Severe peaking can result from large spills or flooding, when the water isn’t cleaned and dried quickly enough. The solution is to first solve the moisture problems, then tear up and replace the affected boards (leaving enough room for them to expand).

  • Gapping means that empty spaces are starting to form between your floorboards. If the wood was too damp when it was installed, it may shrink and form gaps when the climate gets dry. If the gaps are small enough that they don’t bother you, you’re safe to wait for a more humid season to see if they close up. Otherwise, you can fill the gaps with wood glue and thin strips cut from spare floorboards. Make sure to fill gaps during the humid season while the boards are in their expanded state.

  • Cupping means that individual boards have started to curve up at their edges. This becomes more common the wider the boards are. Cupping is caused by moisture underneath the floor. If the cupping isn’t too severe, it’s possible to sand the upturned edges down and refinish the floor. Make sure to fix the underlying moisture issue, though, or the problem will return. You may have to tear up the whole floor and install a moisture barrier layer underneath.

Mould and mildew

If mould is starting to grow on your hardwood floors, moisture is usually the culprit. When the mould only affects the surface, it’s easy enough to deal with. Soak a towel or rag with a diluted vinegar or bleach mixture, then wring it out until it’s damp. Place the towel over the mouldy area, and let it sit for 10 minutes. Then, wipe away the mould and dry the area thoroughly.

If your mould goes deeper, you can try sanding down the affected area and re-finishing it. This can be tricky, since it’s hard to match the new finish to the existing finish surrounding it.

For severe mould problems, you may need to replace entire planks. You can also hire a mould removal specialist.


We’re not talking about the intentional staining that gives the floor its colour. How do you rid your hardwood floors of stains from pet urine, standing water, or other liquids?

Catch spills quickly, and it’s as simple as wiping them away. Scrub the area gently with a soft cloth and some detergent if necessary. The finish layer should keep fluids from penetrating the surface, at least for a little while.

If you’ve got an actual stain on your hands, soak a rag in a diluted cleaning agent (vinegar, hydrogen peroxide, etc.) and wring it out until it’s damp. Place the rag over the stain, and let it sit for up to 24 hours. Then, wipe away the cleaner. Hopefully, the stain goes with it.

This is important to note:

Not every cleaner plays nice with every type of finish. If you’re not sure which cleaner to use, consult the manufacturer’s instructions for your floor’s finish.

If the stain is still being stubborn, you may have no choice but to sand the area down and refinish it. If you take this route, consider doing a trial run somewhere out of sight (like a closet) to make sure that your new finish will match the existing finish.

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What can you do to maintain your wood flooring?


Keeping your hardwood floors clean is the most efficient thing you can do to prolong their lifespan. You should sweep, dust mop, or vacuum your floor regularly. Dust and other debris can leave scratches as they get trod upon by family members and pets. If you use a vacuum, make sure that it features the option to turn off the rotating brush; the bristles can scratch your floors.

Even when your dust-busting game is on point, your floors will still get a bit grimy over time. To remove heavier dirt and grime, you can use a commercial cleaner like Murphy Oil Soap. You can also make your own, with vinegar diluted in water (1 part vinegar to 10 parts water). Check that your floor’s finish can handle the cleaner you choose. Clean using a sponge mop or a rag, which should be damp but never wet.

Remember: moisture is the enemy of hardwood floors.

After you’ve done a pass with your cleaning solution, do another pass with clean water. Again, make sure your cleaning tool is damp but not wet. Afterward, dry your floor completely. Set up fans or space heaters if you need to.

Fixing scratches

If the scratches and scuffs aren’t too deep (or too numerous) it’s easy enough to fix them. Regardless of which method you choose, start with a soft cleaning.

Using fine-grained sandpaper, sand the scratched area until the scratches are no longer visible. Then, reapply some fresh finish. As mentioned before, it can be tough to match new finish to existing finish; test in a low-visibility area first.

If you’re not comfortable sanding your floor, there are a couple of home remedies you can try:

  • Colour over the scratches with a wax crayon. Then, buff the area with a dry rag or towel. Match the crayon colour as closely as possible to the floor. You can also buy purpose-made wood repair crayons if you’d prefer.

  • Apply baking soda and a few drops of cooking oil to the scratches. Buff the area using a towel or sponge. Re-apply as necessary, then clean the area with a damp rag. Dry thoroughly.

If the scratches are too deep to be buffed out, use wood filler putty. Fill the scratch with putty, let it dry, then sand it down and buff it out. With engineered hardwood, it’s possible that a deep scratch could penetrate the top layer. If that’s the case, filling it with putty or replacing the board are your only options.

If you’ve got scratches all throughout your house, it may be time to refinish the whole floor.

Other maintenance tips

  • When cleaning your textured wood floor, clean with the grain direction. Cleaning across the grains can leave particles trapped between the tiny grooves.
  • If you have pets, keep their claws trimmed. Sharp, protruding claws can quickly scratch up a hardwood floor.
  • Place doormats inside and outside at all exterior doors to catch dust and dirt before they get tracked across your floor.
  • Use floor protectors on all your furniture.
  • Set rugs over high-traffic areas to reduce wear and tear on the floor.

What is the life expectancy of wood flooring?

If properly installed and cared for, hardwood flooring has excellent longevity. A 100-year lifespan for solid wood flooring is possible, though 50-70 years is more likely.

Solid wood can be refinished multiple times throughout its life, making it as good as new each time. Depending on the thickness of the boards, a floor can be refinished 4-7 times.

Engineered hardwood doesn’t last quite as long due to its thinner wear layer. The layered structure means that it can’t be refinished as often as solid wood. Engineered wood floors should last 20-30 years at least, and 50-60 years for high-quality, well-maintained floors.

What will your home insurance provider want to know?

Your insurer won’t specifically need to know if you’ve got hardwood floors in your house. If you install new hardwood floors, however, definitely give your insurance company a heads-up. Hardwood floors can increase the value of your home fairly substantially. Home insurers always need to know if you’ve done a costly renovation.

On the other had, If you live in a condo, hardwood floors are only covered by your condo corporation’s insurance if they’re original to the building. If you’ve added the hardwood yourself, it’s considered an upgrade, and you’ll need your own condo owners insurance policy to cover it.

If you’d like to know more about hardwood flooring and home insurance get a home insurance quote here.

Commonly asked questions

What’s the best type of wood flooring?

We looked at engineered vs. solid wood near the top of this page, but the short version is: engineered holds up better to moisture, but it may be more expensive and has a shorter lifespan than solid wood.

Oak (both red and white) and maple are among the most popular choices for wood species. Whichever type you choose, remember that soft woods are cheaper but more easily damaged. Ultimately, the best type of hardwood flooring is the one that fits your tastes and your budget.

What is the easiest wood flooring to install?

The easiest installation method is that of the floating floor, which means that planks are snapped together but not adhered to the subfloor. Floating style can be done with engineered hardwood, but not with solid wood; the lack of adhesion means the solid wood is more likely to warp and buckle.

How to protect your floors from chairs?

Place protective pads on the bottom of all your chair legs. Use tap-on or slip-on pads so they don’t slide off as the chairs move. Pads made of rubber or felt are best. If you use felt, make sure it’s good and thick. If you use rubber, take care that it doesn’t leave scuff marks on the wood.

How much does it cost to install 1,000 square feet of hardwood floors?

The price of hardwood floors varies widely depending on the type of wood and quality of materials. On average, people spend around $7/sq. ft for materials, plus another $2.50-$3/sq. ft for installation. It’s recommended to buy 10-15% more flooring than you need to account for defective boards and wastage.

That’s an average of $7,700 if you install the flooring yourself, or $10,700 if you hire someone to install it for you.

What is the best thickness for wood flooring?

Solid wood floors are most commonly 3/4-inch thick. That’s enough to allow for multiple refinishes throughout the floor’s life, but not so thick that it’s cumbersome.

Engineered wood is usually thinner, commonly sold in 3/8-inch or 1/2-inch thicknesses. Pay attention not just to the overall thickness, but the number of layers and the thickness of the top layer. More is better in both cases. The best engineered hardwood has at least 9 layers in addition to the top layer.

What is the most popular width of hardwood flooring?

2-1/4 inches is the most common width for hardwood flooring. Wider boards are becoming more and more popular, however; 5-inch boards are also a common choice.

Board width should be based on the style that you want for your room. Narrow boards are the classic wood floor look. Wider boards, on the other hand, can lend a contemporary or a rustic feeling, depending on the style of boards you choose. The size of the room is another factor. Commonly, people choose narrow boards for a small room, but that’s not always the right choice. Wider planks can make a small space appear larger, as there are fewer joints between the planks and the floor appears less crowded visually.

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