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The best double bowl granite composite sink gives you two basins for washing and rinsing, or for soaking pans while you prep, without giving up the quiet, scratch-resistant feel of composite. The main choice is the layout: a 60/40 split with one larger bowl, equal 50/50 bowls, or a low divide that lets large pans lie across both.
We compared six double bowl composite sinks on Amazon by layout, bowl depth, mounting and buyer feedback.
Quick Answer: The Best Double Bowl Granite Composite Sink
- Best OverallKRAUS Quarza 33 in. 60/40 Double Bowl Granite Kitchen Sink KGD-442WHITE
- Best PremiumBLANCO 440179 Diamond SILGRANIT 60/40 Double Bowl Undermount Sink – Anthracite
- Best BlackKRAUS Black 33 in. 60/40 Double Bowl Granite Kitchen Sink KGD-50BLACK
- Best Low DivideBLANCO 443080 Precis SILGRANIT 60/40 Double Bowl with Low Divide – Soft White
- Best WhiteKRAUS White 33 in. Double Bowl Granite Kitchen Sink KGD-52WHITE
- Best 50/50Karran 32 in. White Quartz Composite Undermount 50/50 Double Bowl Sink
The KRAUS Quarza 60/40 is the best double bowl granite composite sink for most kitchens, with a deep 10 in. main bowl. Choose the BLANCO Diamond 60/40 for premium SILGRANIT, or a low-divide model if you wash big sheet pans.
Best Double Bowl Granite Composite Sink Comparison Table
| Product | Best For | Type | Key Feature | Buy |
|---|---|---|---|---|
| KRAUS Quarza 60/40 | Best Overall | Dual-mount double bowl | Deep 10 in. large bowl, 60/40 | Check Price |
| BLANCO Diamond 60/40 Anthracite | Best Premium | BLANCO SILGRANIT double bowl | 60/40 double bowl in near-black anthracite | Check Price |
| KRAUS KGD-50 Black Double | Best Black | Dual-mount double bowl | 60/40 double bowl, drop-in or undermount | Check Price |
| BLANCO Precis 60/40 Low Divide | Best Low Divide | BLANCO SILGRANIT double bowl | Low divide for large pans | Check Price |
| KRAUS KGD-52 White Double | Best White | Dual-mount double bowl | White double bowl with two strainers | Check Price |
| Karran 50/50 Low Divide | Best 50/50 | Quartz composite double bowl | 50/50 with 6 in. low divider | Check Price |
The 6 Best Double Bowl Granite Composite Sinks
Ranked by layout, depth, quality and verified-buyer feedback.
1. KRAUS Quarza 33 in. 60/40 Double Bowl Granite Kitchen Sink KGD-442WHITE
1. Deep 10 in. main bowl in a 60/40 layout.
👍 Pros & Cons
Pros
- Deep 10 in. main bowl
- Over 1,100 ratings
- Drop-in or undermount
Cons
- Small bowl is shallower
- Bulky deck for drop-in
📄 Detailed Review
- Material: Quartz composite (look of granite)
- Exterior: 33 x 22 x 10 5/8 in.
- Large bowl: 18 1/8 x 18 x 10 in.
- Min. cabinet: 36 in.
The Quarza line has a deeper 10 in. main bowl than the Forteza, which helps with tall stockpots.
Its 60/40 layout is the most popular double-bowl split.
2. BLANCO 440179 Diamond SILGRANIT 60/40 Double Bowl Undermount Sink – Anthracite
2. BLANCO SILGRANIT in stain-hiding Anthracite.
👍 Pros & Cons
Pros
- Anthracite hides stains and water spots
- Classic 60/40 layout
- Nearly 500 ratings
Cons
- Anthracite is near-black, not true black
- Drain sold separately
📄 Detailed Review
- Material: SILGRANIT
- Size: 32 x 21 in.
- Layout: 60/40 double bowl
- Install: Undermount
Anthracite is BLANCO’s deep charcoal color, a popular alternative to pure black.
This 60/40 double bowl suits busy family kitchens.
3. KRAUS Black 33 in. 60/40 Double Bowl Granite Kitchen Sink KGD-50BLACK
3. Black 60/40 Forteza with dual mounting.
👍 Pros & Cons
Pros
- Classic 60/40 split for washing and rinsing
- Dual-mount installation
- Hundreds of ratings
Cons
- Smaller bowl limits big pans
- Two drains to plumb
📄 Detailed Review
- Material: Quartz composite (look of granite)
- Exterior: 33 x 22 x 9 1/2 in.
- Bowls: 60/40 split, 8 7/8 in. deep
- Min. cabinet: 36 in.
This KRAUS Forteza double bowl gives you a large basin for washing and a smaller one for rinsing or prep.
It can drop in or mount under stone counters.
4. BLANCO 443080 Precis SILGRANIT 60/40 Double Bowl with Low Divide – Soft White
4. Sheet pans lie across both bowls.
👍 Pros & Cons
Pros
- Low divide lets large pans span both bowls
- Hygienic surface
- BLANCO quality
Cons
- Fewer ratings than super single models
- Premium price
📄 Detailed Review
- Size: 33 x 18 x 9.5 in.
- Layout: 60/40 with low divide
- Surface: Hygienic+Plus
- Install: Undermount
The low divide sits below the rim, so baking sheets can lie across both bowls.
It blends the flexibility of a double bowl with the space of a single.
5. KRAUS White 33 in. Double Bowl Granite Kitchen Sink KGD-52WHITE
5. White double bowl with two strainers.
👍 Pros & Cons
Pros
- Bright white double bowl
- Dual mount
- Over 800 ratings
Cons
- White needs regular wiping
- Divided bowls reduce space for large trays
📄 Detailed Review
- Material: Quartz composite (look of granite)
- Exterior: 33 x 22 x 9 3/4 in.
- Includes: 2 drains, mitt and trivet
- Min. cabinet: 36 in.
The KGD-52 is KRAUS’s white double-bowl option, sold with two strainers and installation hardware.
It suits cooks who like a dedicated rinse bowl.
6. Karran 32 in. White Quartz Composite Undermount 50/50 Double Bowl Sink
6. Equal bowls with a 6 in. low divider.
👍 Pros & Cons
Pros
- Equal bowls with low divider
- Sound-dampening material
- Bright white
Cons
- Fewer ratings
- Equal bowls are smaller than a 60/40 main bowl
📄 Detailed Review
- Material: Quartz composite
- Size: 32 x 19.5 x 9 in.
- Layout: 50/50, low divider
- Heat: To 535°F (stated)
Karran’s 50/50 sink uses a low divider so large items can span both bowls.
It is a good alternative to BLANCO for a white double bowl.
How We Chose the Best Double Bowl Granite Composite Sink
To build this guide to the best double bowl granite composite sink, we compared listing details on Amazon US: material (granite or quartz composite, stainless steel, fireclay or cast iron), exterior and bowl dimensions, bowl depth, minimum cabinet size, mounting style and what is included in the box. We then read patterns in verified-buyer reviews for chips, stains, fading, noise, drain fit and installation problems, and we flagged listings with few ratings.
Sinks touch food, so clean and sanitize them regularly and rinse produce in a clean basin, following USDA Food Safety and Inspection Service cleanliness guidance. Our research method is on the How We Test page; this is a research-based guide, not a lab test.
Buying Guide: How to Choose the Best Double Bowl Granite Composite Sink
60/40 vs 50/50
60/40 gives one large bowl for pots and a smaller rinse bowl. 50/50 suits households that wash and rinse equally.
Low Divide
A divider a few inches below the rim lets large pans span both bowls, combining single and double bowl benefits.
Bowl Depth
Look for 9–10 in. in the main bowl so pots fit under the faucet.
Cabinet Size
Most 33 in. double bowls need a 36 in. cabinet.
Plumbing
Two drains need a continuous waste kit; a disposal usually goes on the larger bowl.
Tips for Double Bowl Sinks
- Put the disposal on the larger bowl.
- Use grids in both bowls to protect the surface.
- Choose a pull-down faucet that reaches both bowls.
- Check drain positions before buying grids.
- Wipe the divider top, where film collects.
Quick answers to common questions about two-basin sinks.
Frequently Asked Questions
What is the best double bowl granite composite sink?
The KRAUS Quarza 60/40 is the best double bowl granite composite sink for most kitchens.
Is a double bowl better than a single bowl?
It is better for multitasking; a single bowl is better for large pans.
What is a low divide sink?
A double bowl with a shorter divider so big items fit across both sides.
Do double bowl sinks need two drains?
Yes, usually joined below with a continuous waste kit.
Final Verdict
Our pick for the best double bowl granite composite sink is the KRAUS Quarza 60/40. Choose BLANCO Diamond 60/40 for premium quality or the Precis low divide for big pans.
Related Guides
Keep planning your sink setup with these guides:
Prices and availability change often. Check the current listing on Amazon before you buy.
