Comparison
Modern Vanity vs Costco — Quartz vs Cultured Marble Vanities
Costco sells bathroom vanities at competitive prices, primarily from brands like OVE and Avanity. The key difference? Countertop material. Here's the honest comparison.
Last updated: April 2026. All prices in Canadian dollars.
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Modern Vanity
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Tie
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Costco
| Feature | Modern Vanity | Costco | Edge |
|---|---|---|---|
| Countertop Material | Engineered quartz (all models) | Cultured marble / polymarble (most models) | |
| 36" Price Range | $749 | $600-$900 | |
| Backsplash | Included (quartz) | Not included on most models | |
| Selection | 33 products, 3 colours | 15-25 models (seasonal rotation) | |
| Return Policy | Final sale (damage claims) | Costco's generous return policy | |
| Membership Required | No | Yes — Costco membership ($65+/year) | |
| Delivery | Local GTA, free pickup | Free shipping (Costco.ca) | |
| Sink Type | Ceramic undermount | Integrated / ceramic (varies) |
Choose Modern Vanity If…
Buyers who want a genuine quartz countertop (not cultured marble) at a competitive price. Quartz is harder, more durable, and looks significantly better than the polymarble found on most Costco vanities.
Choose Costco If…
Costco members who prioritize the return policy, want the convenience of online ordering with free shipping, or prefer specific brands like OVE Decors.
Our Verdict
This comes down to countertop material. Costco's vanities at the $600-$900 range almost always use cultured marble or polymarble — which looks fine but scratches easier, yellows over time, and lacks the premium feel of quartz. Modern Vanity's quartz countertop at $749 (36") is a material upgrade that's worth the small premium.
Frequently Asked Questions
What's the difference between quartz and cultured marble?
Quartz is engineered stone — extremely hard, scratch-resistant, non-porous, and maintains its appearance for decades. Cultured marble is a resin-based material that's lighter and cheaper to produce, but scratches more easily and can yellow with UV exposure over time.
Do Costco vanities come with a backsplash?
Most Costco vanity models do not include a backsplash. Modern Vanity includes a matching quartz backsplash with every set.
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