Wide plank and narrow plank flooring look and perform very differently in a Toronto semi-detached. The choice affects how big your rooms feel, how the floor handles our humidity swings, what you can install it over, and how much you pay — so the decision matters more than most homeowners expect when they're renovating.
At Top Floorings Depot (3781 Victoria Park Ave, Toronto), we carry European Oak engineered hardwood from 6½" to 7½" wide, and Canadian-made solid hardwood in the traditional 4¼" width. Here's how to decide which plank width actually fits your home.
What Is the Difference Between Wide Plank and Narrow Plank Flooring?
Wide plank flooring typically starts at 6½" and goes up to 7½" or wider. Narrow plank flooring refers to the traditional 4¼" width common in Canadian-built homes across the GTA. The difference is more than aesthetic — plank width changes how the floor behaves structurally.
Wide planks expose more of each individual board's grain, which means more character from the wood itself. A 7½" European Oak board shows the full arc of the grain pattern from one edge to the other. Narrow planks break that pattern into narrower strips, creating a more segmented visual rhythm across the room.
Wide plank also means fewer seams per square foot. A 200 sq ft living room might need 60 boards at 4¼" wide but only 30 at 7½". Fewer seams makes the floor look more continuous and can make small rooms feel less busy.
Which Plank Width Works Better in Toronto Semi-Detached Homes?
Most semi-detached homes in Toronto were built between 1910 and 1960 and typically have 8-foot ceilings, original hardwood in some rooms, and a mix of plywood and concrete subfloors depending on the renovation history. Plank width interacts with all of these.
Wide plank engineered hardwood installs over both plywood and concrete subfloors — including below-grade basements that are common in Toronto semis. Solid narrow plank hardwood requires plywood subfloor and cannot be installed over concrete or in basements.
For a semi-detached with a basement apartment, wide plank engineered hardwood is often the only realistic choice if you want the same flooring on both levels. Our engineered hardwood collection gives you that flexibility.
How Does Toronto's Climate Affect Wide vs Narrow Plank?
Toronto's seasonal humidity swings create real movement in wood floors. Narrow planks move less per board because each individual piece is smaller. Wide planks have more surface area per board, which makes them slightly more sensitive to humidity changes — but the right product handles this well.
Engineered wide plank is built to resist this movement. The cross-layered core of engineered hardwood (typically 3-5 layers) handles humidity fluctuations better than solid wood, which is why our solid hardwood products remain the better choice for upstairs rooms with stable conditions, while engineered wide plank handles ground floors and basements with confidence.
In a Toronto winter (indoor humidity can drop to 20-30% with heating), narrow solid planks may gap slightly. Wide engineered planks tend to expand and contract as a unit rather than gapping between boards — if the core is high-quality and the locking system is properly installed.
Cost Comparison: Wide Plank vs Narrow Plank in the GTA
Material cost per square foot increases as plank width goes up. Narrow plank solid hardwood (4¼") from Canadian manufacturers like Appalachian runs $5.29-$5.69/sqft at retail. Wide plank engineered hardwood with European Oak (7½") starts at $3.69-$4.39/sqft for 2mm wear layer products and moves to $3.99-$4.39/sqft for 4mm wear layer options.
The apparent cost gap needs context. Narrow plank solid hardwood requires plywood subfloor preparation and nail-down installation. Wide plank engineered hardwood can be installed over existing concrete in many Toronto condos and basements with a floating click-lock method, eliminating subfloor costs in some cases.
For a 300 sq ft main floor in a semi-detached, going wide plank engineered at $4.09/sqft means $1,227 in materials. A comparable narrow plank solid at $5.49/sqft means $1,647 — plus the cost of plywood subfloor if one is not already in place.
Rooms Where Wide Plank Makes More Sense
Open-concept main floors benefit most from wide plank. In combined kitchen-living spaces of 350-500 sq ft that are common in renovated Toronto semis, fewer seams create a cleaner visual line that makes the space feel more connected. Waterproof SPC vinyl in wide plank formats handles the kitchen and dining area without sacrificing looks.
Master bedrooms with walk-in closets often look better with wide plank, especially if ceilings are 9 feet or higher. The larger board format fills the room without the busy seam pattern of narrow plank.
Dining rooms with heritage millwork (crown moulding, deep baseboards, wainscoting) can look overwhelmed by very wide plank — in these rooms, a 4¼" or 6½" width often balances better with the existing trim.
For rooms under 120 sq ft — powder rooms, narrow hallways, secondary bedrooms — the difference between wide and narrow plank is less critical. Either works. Choose based on what the adjoining rooms use for visual continuity.
Durability: Does Plank Width Affect How Long the Floor Lasts?
Narrow planks have a practical advantage in very humid GTA summers: each board is small enough that seasonal expansion is distributed across more joints, reducing the chance of cupping. In a poorly ventilated basement with occasional moisture, 4¼" narrow plank behaves more predictably than a wide plank board that has more surface area to absorb humidity.
On the upper floors of a semi-detached, where humidity is more stable, wide plank engineered hardwood holds up very well. The wear layer thickness matters more than the plank width for long-term durability. A 4mm wear layer on a wide plank engineered floor can be sanded and refinished 2-3 times over several decades — a 2mm wear layer is not suitable for refinishing but works well for light residential use.
In high-traffic GTA households (kids, pets, multiple occupants), a wide plank engineered floor with a 3mm or 4mm wear layer handles daily wear better than a 2mm product, because the thicker veneer provides more substance under the wire-brushed texture.
Our Top Picks at Top Floorings Depot
These products represent the best of each plank width category, with pricing and availability that work for Toronto renovation budgets.
European Oak Bourbon — 7½" Wide, 4mm Wear Layer
Wire-brushed character grade, ¾" total thickness, random length (1900mm). $4.39/sqft. The 4mm wear layer is the key spec here — thick enough to support a full refinish if the floor needs it in 15-20 years. The bourbon colour (warm medium brown) works in both modern and transitional interiors. Best for: main floors, living rooms, open-concept spaces in semi-detached homes where the floor needs to handle heavy use across multiple rooms.
European Oak Cappuccino — 7½" Wide, 4mm Wear Layer
Same specs as the Bourbon (7½", 4mm, wire-brushed character grade) at $4.39/sqft. The cappuccino colour leans darker — rich espresso-brown tones that work especially well in dining rooms with light-coloured trim or in master bedrooms where you want the floor to feel warm and grounding. Best for: rooms with higher ceilings or where a darker floor creates the right contrast with lighter walls.
European Oak Berkley — 6½" Wide, 2mm Wear Layer
Wire-brushed character grade, 2mm wear layer, 6½" wide. $3.69/sqft. The most affordable wide plank option in our European Oak line. The narrower 2mm wear layer is not suitable for refinishing, but for a living room or bedroom that won't be sanded, it's a solid product at an accessible price point. The Berkley colour (warm light tone) works in rooms where you want the floor to feel bright without going grey. Best for: bedrooms, home offices, or secondary floors where budget matters and the floor won't see heavy refinishing.
European Oak Slate — 6½" Wide, 2mm Wear Layer
Same width and thickness as the Berkley ($3.69/sqft) but in a cool grey that reads contemporary. Useful when the adjacent rooms have grey-toned finishes or when a modern aesthetic is the goal. Wire-brushed texture masks light surface scratches better than a smooth finish — a practical advantage in busy hallways. Best for: hallways, modern living rooms, and spaces where the cool grey tone complements the rest of the design.
Installation Considerations by Plank Width
Engineered wide plank with a click-lock system (Valinge 5G, UniPush, or I4F depending on the line) floats over most subfloors without adhesive or nails — making it suitable for concrete slabs in Toronto's many older homes with basement suites. Professional installation for engineered hardwood runs approximately $2.00/sqft in the GTA and handles subfloor prep, levelling, and board layout.
Narrow plank solid hardwood requires nail-down or staple-down installation to a plywood subfloor. If your semi-detached has a concrete slab basement and no plywood subfloor, adding one adds $3-$5/sqft to the project and requires floor height adjustments at door thresholds and transitions.
For wide plank installed over concrete, ensure the slab is level to within 3mm per 2 metres. Wide plank boards transfer any subfloor unevenness into visible gaps or rocking. A self-levelling compound ($0.50-$1.00/sqft materials) prevents this issue before the floor goes down.
Installation Cost and What to Budget For
Beyond the cost of the flooring material itself, the overall project budget depends on what the subfloor needs. Here's what GTA homeowners typically encounter:
- Subfloor prep (levelling, repairs): $0-$3/sqft depending on condition
- Old floor removal: $1.50/sqft if required
- Baseboard removal/reinstallation: typically $2.80/linear ft for supply and install
- Engineered hardwood installation: $2.00/sqft in the GTA
- Baseboard & trim installation: $2.80/linear ft
A 300 sq ft main floor renovation with wide plank engineered hardwood at $4.09/sqft ($1,227 materials), plus installation at $2.00/sqft ($600), plus baseboard work at $0.80/linear ft for a typical semi ($300), runs roughly $2,127 in total — not counting subfloor work if needed.
Which Plank Width Should You Choose?
If your semi-detached has concrete subfloors (basement or ground level), wide plank engineered hardwood is the practical and cost-effective choice — it handles the subfloor situation and gives you the wider plank look for less per square foot than solid.
If your subfloor is plywood and you prefer the traditional look of 4¼" Canadian hardwood, that still works and the Canadian-made Appalachian and Lauzon products we carry are excellent. The aesthetic is different — more seams, more rhythmic — and it fits certain home styles genuinely well.
For open-concept layouts, we recommend wide plank. For rooms with significant heritage millwork and traditional proportions, the narrower 4¼" or 6½" widths often look more right. And across any width choice, make sure the wear layer is thick enough to support the refinishing you might want in 15 years — 3mm or 4mm beats 2mm for a floor you'll live with for decades.
Bring your room measurements to our showroom at 3781 Victoria Park Avenue, Unit 1. We'll help you run the numbers on both options and show you the actual planks so you can feel the difference between 6½" and 7½" before you commit.
Visit Top Floorings Depot
Top Floorings Depot
3781 Victoria Park Avenue, Unit 1, Toronto, ON M1W 3K5
www.topfloorings.com
Call 416-499-0117 | Text 416-770-8819
Showroom Hours: Monday–Friday 9–5:30 | Saturday 9–4 | Sunday Closed
We serve homeowners and contractors across Toronto, Scarborough, North York, Markham, Richmond Hill, and Vaughan. Visit our showroom to see wide plank and narrow plank options side by side, or contact us for contractor pricing on multi-unit renovation projects. GTA-wide delivery available.
Have you renovated a semi-detached home in the GTA? Leave us a review on Google or tag us on Instagram @topflooringsdepotgta — we love seeing the finished projects.