Engineered hardwood is not waterproof, and it is better to say that plainly than to sell you a floor on a label. An engineered board is a real oak wear layer bonded to a wood core, and that core is still wood. Leave water sitting in the seams and the joints swell, the surface darkens, and a plank can cup. What keeps these floors usable in kitchens is how fast water is dealt with and how the floor is fastened. This page answers the water question for the boards we stock and shows where a waterproof SPC plank is safer. The full range sits in our engineered hardwood collection.
Quick answer: what water does to engineered hardwood
Our engineered boards are oak bonded to a wood core, and the National Wood Flooring Association's installation guidelines describe the build as flooring "made using several layers of wood veneers or lumber core that are bonded together using adhesives." None of that makes a plank waterproof: water that reaches the oak or works into the seams still has to dry out of wood, and damage starts before anything looks wrong on the surface. The guidelines describe where it ends: "Standing water will result in cracks, splits, cupping, warping, degradation of the finish, and can leave a discoloring and sometimes sticky residue."
Four products carry the comparison on this page: three European oak engineered boards from our own line and one SPC vinyl plank for the rooms where water wins.
| Product | Wear layer | Total thickness | Box price and coverage | Material per sq ft | Installation |
|---|---|---|---|---|---|
| Natural European oak engineered | 3mm | 3/4" | $97.00 / 19.42 sq ft | $4.99 | Nail-down |
| Bourbon European oak engineered | 4mm | 3/4" | $97.00 / 19.42 sq ft | $4.99 | Nail-down |
| Berkley European oak engineered | 2mm | 3/4" | $95.71 / 20.24 sq ft | $4.73 | Nail-down |
| Riche Driftwood Mist SPC vinyl | 20mil | 8mm | $59.00 / 16.55 sq ft | $3.56 | Click-lock |
Prices checked October 7, 2026. Box prices and coverage come from our current catalogue.
Two things stand out. All three oak boards are nail-down products at 3/4" total thickness, so the differences come down to wear layer and plank width. Natural and Bourbon are both 7 1/2" wide, and the Bourbon European oak engineered plank carries the thicker 4mm wear layer at the same box price. Berkley is the narrower 6 1/2" board at the lowest oak price, and our guide to 2mm, 3mm and 4mm wear layers explains what the extra oak changes over the life of the floor.
A spill, a wet mop and a slow leak are three different problems
Water you pick up right away is barely an event. A wet mop used the way you would use it on tile is a slow problem, because a film of water sitting in the seams has time to work into the oak and the core edges. The expensive one is a dishwasher or fridge line that has dripped for a month. The guidelines treat it as damage to address first: "When a wood floor has been damaged by a leak or a flood, it must be addressed before further damage occurs." Water also migrates below the floor, so the subfloor can end up worse than the boards you can see, and drying the room properly decides whether you are looking at a repair or a replacement.
The Natural plank is the usual starting point in a kitchen: a 3mm wear layer over the core, at $97.00 per 19.42 sq ft box. It behaves like any other wood floor near water, so the habits around the sink matter more than the spec sheet does.
If a leak has already reached the floor, repair or replacement is its own decision, and our post on water damage on engineered hardwood works through that call.
Kitchen decisions that change the water risk
A kitchen has three spots where water lives: the sink cabinet, the dishwasher bay and the fridge line. The question argued about most is whether the oak runs under the cabinets or stops at them.
Stop the floor at the cabinets, or run it under them?
Running the boards under the cabinets keeps one surface across the room and gives clean plank lines with no fiddly cuts around the appliance bays. Stopping at the cabinets leaves the cabinet boxes on the subfloor with only the open floor in oak. One rule covers a specific case: floating floors should never be installed "where future fixed cabinetry (such as kitchen islands) will lock the floor down," because the whole floor has to move as one piece. Our oak boards are nailed down rather than floating, so that problem does not apply, but the perimeter still matters. The guidelines define the expansion space this way: "A space necessary between fixed objects (e.g., walls of a room, pipes, and cabinets) and between the wood flooring material itself, to allow for the movement of the flooring system."
Nail-down or glue-assisted nail-down over a concrete slab?
Every oak board above is listed as nail-down, and over a plywood subfloor that is the standard method at $2.00 per sq ft for a house or basement. A kitchen on a concrete slab cannot take a cleat, so the same boards go down with a full-spread adhesive plus a nail assist, quoted at $2.80 per sq ft. That is $0.80 per sq ft more on the labour line. Our post on nail-down versus floating engineered hardwood covers how the subfloor decides which methods are available.
Bathrooms, powder rooms and laundry rooms
A full bathroom is a different question from a kitchen, because the floor sits wet far more often. Manufacturer documents are direct about rooms like this. An engineered hardwood technical guide states that wood flooring "is not recommended to be installed in any area of the jobsite/home that has extreme temperature and moisture fluctuations." An installation guide for engineered planks names the wet rooms outright and asks for a seal: "In any water-prone areas, kitchens, bathrooms, laundry rooms, or similar wet areas. Flexible silicone is required around all perimeter areas and frequent water prone areas."
A powder room or laundry room sits between the two extremes: no shower, but a toilet, a sink or a washer that can overflow. Where a shower or a tub is involved, choose a floor that ignores water rather than one that has to dry out, which is where SPC earns its place. Our guide to kitchen flooring in Toronto ranks every material we sell for those rooms.
When an SPC plank is the safer pick
The Riche heavy-duty plank is a stone-polymer composite with no wood in it, and it is the only one of these four products whose record in our catalogue carries a waterproof flag. The specs are 8mm total thickness, a 20mil wear layer and a click-lock joint, at $59.00 per 16.55 sq ft box, or $3.56 per sq ft. That is $1.43 per sq ft less material than the oak, and it is the floor to choose in a bathroom or laundry room.
A waterproof core answers the water question, not every installation question. Click-lock planks are not fastened to the subfloor the way a nail-down board is. Our guide to waterproof LVP for kitchens and main floors goes through the specs worth checking before you order one.
Installed cost per sq ft: nail-down, glue-assisted and SPC click
Material per sq ft is the box price divided by the box coverage. Labour is charged on the waste-adjusted area, and every quote builds in 5% waste for cuts before boxes round up to whole boxes. Delivery is a flat $150.00 to an M postal code and $200.00 to an L postal code, and Ontario HST is 13%. Removal, baseboard, transitions and subfloor preparation are separate lines that we confirm in a measured quote.
| Option | Material per sq ft | Labour per sq ft | Installed per sq ft with 5% waste |
|---|---|---|---|
| Oak engineered, nail-down in a house or basement | $4.99 | $2.00 | $7.34 |
| Oak engineered, glue-assisted nail-down | $4.99 | $2.80 | $8.18 |
| Riche SPC, click-lock | $3.56 | $1.50 | $5.32 |
The arithmetic behind the first row is (97.00 / 19.42 + 2.00) x 1.05 = 7.34, and every row uses the same waste allowance our quotes build in. These figures cover material and labour only, with no removal, trim or delivery.
Here is the same three-way choice on a 500 sq ft kitchen in a house with an M postal code. Drop in your own measured area and the method repeats line for line.
| Line | Oak, nail-down | Oak, glue-assisted | SPC, click-lock |
|---|---|---|---|
| Waste-adjusted area (500 sq ft x 1.05) | 525 sq ft | 525 sq ft | 525 sq ft |
| Boxes needed, rounded up | 28 | 28 | 32 |
| Material (boxes x box price) | $2,716.00 | $2,716.00 | $1,888.00 |
| Installation labour | $1,050.00 | $1,470.00 | $787.50 |
| Delivery (M postal code) | $150.00 | $150.00 | $150.00 |
| Subtotal | $3,916.00 | $4,336.00 | $2,825.50 |
| HST 13% | $509.08 | $563.68 | $367.32 |
| Total | $4,425.08 | $4,899.68 | $3,192.82 |
| Total per sq ft (total / 500 sq ft) | $8.85 | $9.80 | $6.39 |
On this job the oak and the SPC differ by $1,232.26. Glue-assisted nail-down costs $474.60 more than plain nail-down, which is what the concrete-slab method adds. The entry-price oak lands lower on every line: Berkley needs 26 boxes for this area, comes to $2,488.46 in material, and works out to $7.07 per sq ft installed with nail-down labour.
Engineered hardwood and water: frequently asked questions
Is engineered hardwood waterproof?
No. The three oak boards above are real oak over an engineered wood core, and none of their records carries a waterproof flag. Water that stays on the surface can reach the wood, so the answer is a habit plus a fastening method rather than a coating. The waterproof flag on this page belongs to the SPC plank, whose core is stone-polymer with no wood in it.
Can you put engineered hardwood in a kitchen?
Yes, with a water plan in place. A kitchen concentrates the risk in three spots instead of spreading it across the room, which is why the sections above keep returning to the cabinets, the slab and the appliance lines. Wiping spills promptly and matching the fastening method to the subfloor matter more than any surface coating.
What should I do if the dishwasher leaks onto engineered hardwood?
Stop the leak, then dry the floor and the air around it instead of letting the moisture sit. Drying decides between a repair and a replacement. Take photos before anything is moved and send them to us with the room size.
Should engineered hardwood go under kitchen cabinets?
Decide before the floor goes down, because changing your mind later means pulling boards or cutting around the cabinet boxes. Running the boards underneath gives one continuous surface; stopping at the cabinets leaves the toe kick area on the subfloor. Either way, the gap that lets the floor move has to stay open at the walls.
Is engineered hardwood a good choice for a bathroom floor?
For a bathroom with a shower or tub, no. Manufacturer documents steer wood away from spaces with extreme moisture swings and ask for a silicone seal at the perimeter where water is frequent. A powder room or laundry room is a softer call, and an SPC plank is the safe answer in either.
Get a measured quote for a kitchen or bathroom floor
Send us the room sizes, whether the subfloor is plywood or concrete, and what is on the floor now. We will price the oak and the SPC side by side using the same rates you saw above. Use the request a quote form and we will come back with an itemized estimate.
Top Floorings Depot
3781 Victoria Park Avenue, Unit 1, Toronto, ON M1W 3K5
www.topfloorings.com
Call: 416-499-0117
Text: 416-770-8819