What is the difference between SPC and WPC luxury vinyl plank for NB conditions?

SPC (stone polymer composite) and WPC (wood polymer composite) are the two core types used in modern luxury vinyl plank flooring, and for New Brunswick's Maritime climate, SPC is generally the stronger choice — particularly for basements, ground-level rooms, and homes without consistent climate control. Both are 100% waterproof, but they differ in density, rigidity, comfort, and how they perform across the temperature and humidity extremes that NB homes experience.

SPC core is made from a blend of limestone powder (calcium carbonate), PVC, and stabilizers, creating an extremely dense, rigid plank. This density gives SPC several advantages in NB conditions. First, it has minimal thermal expansion and contraction, meaning it stays dimensionally stable across the 30 to 50% indoor humidity swings that Maritime homes experience between winter heating season and humid summers. Second, its rigidity means it bridges minor subfloor imperfections better than WPC, which matters in older NB homes where subfloors may have developed slight unevenness over decades. Third, SPC handles cooler temperatures without softening — important for NB basements and ground-level rooms that stay cooler than the rest of the house during the long heating season. SPC typically runs $3 to $6 per square foot for materials in New Brunswick.

The trade-off is comfort. SPC's density makes it harder and less forgiving underfoot. Standing on SPC for extended periods (in a kitchen, for example) is noticeably less comfortable than standing on WPC or hardwood. The rigidity also means SPC transmits more impact noise — footsteps and dropped objects sound sharper. Adding a quality cork underlayment ($1 to $2 per square foot) under SPC significantly improves both comfort and sound, and is a worthwhile investment for NB main-floor living spaces.

WPC core is made from a blend of wood powder or bamboo powder, PVC, and a foaming agent, creating a lighter, slightly softer plank with a small amount of give. WPC's advantages are comfort and sound — it feels warmer and more cushioned underfoot than SPC, produces less impact noise, and is generally more pleasant to walk on in bare feet or socks. Many WPC products include a built-in cork or foam backing layer that adds further comfort and thermal insulation. WPC typically costs $4 to $7 per square foot for materials in NB — slightly more than comparable SPC due to the more complex manufacturing process.

However, WPC has meaningful disadvantages in NB conditions. Its lower density means it is more susceptible to thermal expansion and contraction — during NB's hot, humid summers, WPC expands more than SPC, and during dry winters, it contracts more. This increases the risk of gapping and buckling if expansion gaps are undersized. WPC is also less dent-resistant than SPC, so heavy furniture, dropped tools, or large dog nails leave marks more easily. And because WPC is slightly flexible, it does not bridge subfloor imperfections as effectively — requiring more thorough subfloor preparation in older NB homes.

Choosing Between Them for NB Rooms

For basements — SPC is the clear winner. NB basements are cooler, prone to moisture, and often sit on imperfect concrete slabs. SPC's density, rigidity, and temperature stability make it the right choice below grade.

For main-floor living areas and bedrooms — WPC offers superior comfort if your home has consistent climate control (heating, humidifier in winter, AC or dehumidifier in summer). If climate control is inconsistent, SPC is safer.

For kitchens and bathrooms — either works well since both are waterproof, but WPC's softer feel is appreciated in kitchens where you stand for long periods. SPC resists dropped pots and heavy appliances better.

For rental properties and high-traffic areas — SPC's superior dent resistance and dimensional stability make it the more durable, lower-maintenance choice.

Both SPC and WPC install as floating click-lock systems and cost $5 to $12 per square foot fully installed in New Brunswick. The installation process is identical, so your choice comes down to the room's conditions and your priority between durability (SPC) and comfort (WPC). For most NB homes, SPC on the main floor and basement with WPC in bedrooms is an excellent balanced approach.

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

• The Garbage Guys Ltd
• 3Tone Construction Ltd
• RenoMe
• Thirty Four Renovations
• First united design & construction inc.