What is the best width for hardwood floor planks in a New Brunswick home?

For most New Brunswick homes, a 4-5 inch plank width in engineered hardwood hits the ideal balance between modern aesthetics and dimensional stability in our Maritime climate. Wider planks look stunning, but every additional inch of width increases how much each board expands and contracts with NB's seasonal humidity swings — so your choice of width should be informed by both style preference and practical climate considerations.

Hardwood plank widths generally fall into three categories. Strip flooring (2.25-3.25 inches) is the traditional width seen in older NB homes. It has a classic, formal look, and its narrow profile means each board moves very little — making it the most forgiving option for NB's humidity cycles. Standard planks (4-5 inches) are the current mainstream choice, offering a clean, contemporary look that suits both heritage homes and new construction. Wide planks (6-8+ inches) create a dramatic, modern feel with fewer seam lines, but they demand the most from your home's humidity control.

The NB climate factor is critical here. Our province experiences a 30-50% relative humidity swing between winter drying and summer Maritime humidity. Wider boards amplify this movement — a 7-inch solid oak plank can gap by 2-3mm in winter and expand enough to cup in summer if indoor humidity is not controlled. This is why plank width and product type must be considered together.

If you want planks 5 inches or wider, choose engineered hardwood. The cross-layered construction reduces width movement by roughly two-thirds compared to solid wood of the same width. A 5-inch engineered white oak plank will gap perhaps 0.5mm in a dry NB winter versus 1.5-2mm for a solid plank of the same width. This is the reason engineered wide-plank flooring has become so popular across the province — it gives NB homeowners the wide-plank look without the climate-driven headaches.

If you prefer solid hardwood, stick to 3.25-4 inch widths in NB. This is the range where solid wood's natural movement stays manageable with reasonable humidity control (a whole-home humidifier in winter, dehumidifier or AC in summer). Solid planks wider than 4 inches in NB require very disciplined humidity management to prevent visible seasonal gapping.

Room size also matters. Wider planks look best in larger, open rooms — a spacious open-concept main floor in a newer Moncton or Fredericton home is the perfect canvas for 6-7 inch engineered planks. In smaller rooms, hallways, and older NB homes with more divided floor plans, 3.25-4 inch planks look more proportional and create fewer awkward cuts at walls and doorways.

Pricing differences by width are modest. In the NB market, moving from a 3.25-inch to a 5-inch engineered oak typically adds $1-$2 per square foot to materials. Going above 6 inches can add another $1-$3/sq ft as wider planks require select-grade lumber with fewer defects. Installation costs remain similar regardless of width.

For the best results in NB conditions, pair your chosen width with proper acclimation (5-10 days minimum), professional installation with correct expansion gaps (8-12mm at all walls), and a commitment to maintaining 35-55% indoor humidity year-round.

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Looking for experienced contractors? The New Brunswick Construction Network connects homeowners with qualified professionals:

• 3Tone Construction Ltd
• FRS Flooring Solutions
• Forever Epoxy Inc
• Gionetterenovations
• RenoMe