Should I use porcelain or ceramic tile for a bathroom floor in Metro Vancouver?

For a bathroom floor in Metro Vancouver, porcelain tile is the stronger choice — its density and low absorption rate (under 0.5%) make it significantly better suited to Vancouver's persistently humid marine climate than ceramic tile. While ceramic works fine on bathroom walls, porcelain's superior moisture resistance gives it a clear edge for floors where water exposure is constant.

The fundamental difference between the two comes down to how they're made. Porcelain is fired at higher temperatures (roughly 1,200 to 1,400 degrees Celsius) using finer, denser clay. This produces a tile that absorbs very little water — less than 0.5% by weight according to ASTM C373 standards. Ceramic tile, fired at lower temperatures with coarser clay, typically absorbs 3 to 7% of its weight in water. In a dry prairie climate, that difference is less consequential. In Metro Vancouver, where outdoor humidity averages 75 to 85 percent and your bathroom is already fighting constant ambient moisture, that absorption rate matters enormously.

When moisture penetrates porous ceramic tile — through grout joints, micro-cracks, or the tile body itself — it has nowhere to go in Vancouver's humid environment. The tile can't dry out effectively because the surrounding air is already moisture-laden. Over time, this trapped moisture creates conditions for mould growth beneath and behind tiles. Porcelain's near-impervious body resists this penetration, making it far more forgiving of Vancouver's wet conditions.

On cost, porcelain runs $5 to $20 per square foot for material and $10 to $25 per square foot installed across Metro Vancouver. Ceramic is less expensive at $3 to $10 per square foot for material and $8 to $15 per square foot installed. For a typical 40 to 50 square foot bathroom floor, the material cost difference between mid-range ceramic and mid-range porcelain is roughly $200 to $500 — a modest premium considering porcelain will outlast ceramic by 5 to 10 years in a wet environment.

Porcelain is also harder and more durable. It rates 5 to 7 on the Mohs hardness scale versus 3 to 5 for most ceramic tiles. This means porcelain resists scratching, chipping, and wear better — important for a bathroom floor that sees daily foot traffic, dropped bottles, and cleaning products. Through-body porcelain (where the colour extends through the entire tile, not just a surface glaze) hides chips and scratches better than glazed ceramic.

Where ceramic still makes sense is on bathroom walls and backsplashes where direct water exposure is limited. A ceramic subway tile on a vanity backsplash faces far less moisture stress than a floor tile. Using ceramic on walls and porcelain on the floor is a practical way to balance your budget while putting the better-performing material where it matters most.

Installation considerations are similar for both materials, but porcelain's density makes it harder to cut — your installer needs a quality wet saw with a porcelain-rated diamond blade. Both materials require cement backer board substrate (never standard drywall), proper thin-set mortar rated for the tile type, and sealed grout joints. Large-format porcelain tiles (24x24 inches and larger) require an exceptionally flat substrate and may need medium-bed mortar to prevent lippage.

For a Metro Vancouver bathroom floor that will perform well for 20 to 30 years, porcelain is worth the modest price premium. Pair it with a slip-resistant textured finish (DCOF of 0.42 or higher), sealed grout, and proper waterproofing membrane underneath, and your floor will handle everything Vancouver's climate throws at it.