How thick should a granite slab be? When it comes to choosing granite for your countertops, thickness matters more than you might think. It not only affects the appearance and style but also the strength, cost, and installation process. So, how thick should a granite slab be?
Let’s break it down.
Standard Granite Thicknesses
Granite slabs generally come in three standard thicknesses:
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2 cm (¾ inch)
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3 cm (1¼ inch)
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1 cm (⅜ inch) – much less common and often used for wall applications rather than countertops.
Among these, 3 cm and 2 cm are the most widely used for residential kitchens and bathrooms.
3 cm Granite: The Popular Choice
Why people love it:
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No need for plywood support underneath
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More durable and resistant to cracking
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Has a high-end, substantial look
Where it works best:
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Kitchen countertops
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Large islands
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High-traffic areas
If your goal is durability with minimal support, 3 cm granite is the way to go. It’s a bit heavier, yes—but it’s also sturdier, which means fewer concerns about cracking or warping over time.
2 cm Granite: Sleek and Elegant
Why people choose it:
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Slightly less expensive than 3 cm
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Easier to work with for intricate edge details
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Lighter weight, which can be beneficial for some installations
Things to consider:
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Requires additional support (like a plywood sub-deck)
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Slightly more fragile during handling and installation
This thickness is often used in bathrooms or vanities, where durability isn’t quite as critical, and a lighter, more refined look is preferred.
Should You Choose 2 cm or 3 cm Granite?
Here’s a quick cheat sheet:
| Feature | 2 cm Granite | 3 cm Granite |
|---|---|---|
| Durability | Good, needs support | Excellent, self-supporting |
| Weight | Lighter | Heavier |
| Cost | Slightly lower | Slightly higher |
| Best Use | Bathrooms, low-traffic | Kitchens, islands, high-traffic |
| Appearance | Sleek and subtle | Bold and substantial |
Final Thoughts
There’s no one-size-fits-all answer—your perfect granite thickness depends on your space, budget, and design preferences. But if you want a blend of strength and timeless style, 3 cm granite is a solid choice (pun intended).
Before you buy, always consult with your fabricator or installer—they’ll help you decide what’s right for your space and make sure it’s installed safely and beautifully.
Need help choosing the right granite for your home? Drop your questions in the comments or reach out—we’re always here to help make your renovation smooth and stylish.
