Best Karran Kitchen Sinks

Choose the Karran QU-812-WH for one open bowl, or the QU-810-WH for two equal bowls with a lowered divider. Both checked White undermount models require a 36-inch minimum cabinet. Match the bowl layout, current template and sink-only package before buying.

Plumbing Picks is reader-supported. As an Amazon Associate, we earn from qualifying purchases at no extra cost to you.

This comparison uses the exact maker product pages and their linked family drawings and care instructions. We checked the new Amazon offers separately; we did not test the sinks or measure finish durability.

Same footprint, different washing space

The QU-812 sheet (karran.pictures) and QU-810 sheet (karran.pictures), both revised June 2025, show the same overall dimensions and a 36-inch minimum cabinet. The main difference is inside: one continuous opening versus two smaller bowls separated by a divider.

Both sheets describe an undermount matte-finish composite made of 80% quartz and 20% acrylic resin. The checked offers are White, identified by the maker as WH. These are two bowl configurations in the same material, not a comparison of different grades of stainless steel or solid natural stone.

QU-812-WH: choose one open bowl for larger items

Choose the Karran QU-812-WH if an uninterrupted washing area is the reason for replacing your sink. Its model drawing (karran.pictures) lists a 30 × 16-3/4-inch inside bowl and 9-inch bowl depth. There is no center divider to split the opening.

Compare that inside space with your largest pan, baking sheet or rack. Include handles in the comparison and consider the actual bowl shape, not just its widest opening. The overall 32-3/8-inch sink length is not the clear washing length inside.

The current White product page (karran.com) identifies an undermount model with a 36-inch cabinet requirement. The drawing places its drain toward the rear. Review the space below that position for the intended waste parts and existing plumbing; the sink’s size alone does not prove that those parts will line up.

Skip it if you want two separate bowls for washing and rinsing, if you need a top-mount rim, or if the cabinet is below the maker’s minimum. Also skip it if the existing countertop opening cannot accept the correct model template. Similar nominal sizes do not establish a direct replacement.

The standard new White offer checked on October 15, 2026 was sold by KARRAN through Amazon, showed stock and had an add-to-cart button. Amazon listed model QU-812-WH and manufacturer part number QU-812. Karran’s exact White sink-only page links this same ASIN.

Check Karran QU-812-WH on Amazon →

QU-810-WH: choose equal bowls with a lowered divider

Choose the Karran QU-810-WH if you want two equal working areas while retaining a divider lower than the outer bowl walls. Its specification drawing (karran.pictures) gives each bowl a 14-1/4 × 16-3/4-inch inside opening and 9-inch depth.

The section drawing labels the divider at 6 inches from the bowl floor. That is a height above the floor, not a claim that the divider sits 6 inches below the rim. A lowered divider still occupies space: do not count both bowl widths as one continuous flat area for a tray. It also does not keep water separated all the way up to the outer rim.

Choose the layout because the separation is useful to you. For example, compare where a pan will sit when the other bowl is occupied. If most of your difficult items need the single model’s 30-inch opening, the equal-bowl layout may be the wrong trade even though the outside dimensions are the same.

Skip it if you want one fully open basin, a drop-in installation, or a cabinet below 36 inches. Confirm the correct QU-810 template and the two-drain layout before treating it as a replacement for another sink.

The standard new offer checked on October 15, 2026 was sold by KARRAN through Amazon, showed stock and had an add-to-cart button. Amazon used QU-810 in its model and manufacturer part-number fields with White selected. Karran’s exact QU-810-WH sink-only page directly links this ASIN, confirming the selected variant.

Check Karran QU-810-WH on Amazon →

Keep overall height, bowl depth and the cutout separate

Both family sheets give an overall height of 9-5/8 inches and a bowl depth of 9 inches. Those are different dimensions in the section drawings. Use the overall product envelope when planning space below the countertop and the bowl depth when assessing the washing area. Allow separately for the selected drain or disposal and piping below the sink; those parts are not included in the sink-height measurement.

The drawings also distinguish the outside rim from the inside bowl. On the QU-812, the overall length is 32-3/8 inches while the bowl length is 30 inches. On the QU-810, that same outside length contains two 14-1/4-inch bowls and the intervening divider structure.

Neither product’s overall width is the countertop cutting instruction. The maker’s current undermount guide (karran.pictures) says to check the supplied template against the actual sink before planning the opening. It also calls for considering cabinet doors and panels, water-supply space, faucet placement and any soap dispenser.

The sheets state that dimensions are accurate to 1/4 inch. Keep that qualification in mind when comparing a tight existing opening. Use the actual sink, current template and installer’s countertop plan rather than relying on a marketplace’s rounded 32-inch or 33-inch name.

Choose the sink-only or package version deliberately

The exact maker pages used here select the White color and the sink-only package. Each page also offers a separate kit option. Do not assume an Amazon picture of a grid or strainer proves that those accessories are in the offer you selected.

The family sheets list a template and mounting clips as included. That does not make the sink box a complete waste-piping package or establish every countertop-specific part needed for the job. Check the delivered parts list and the intended drain assembly before installation.

Karran’s QU-810 page describes its PK1 option as a bundle with stainless steel basket strainers, bottom grids and Luster Pro cleaning oil. Check the contents of the exact kit you choose; do not transfer one model’s accessory count to another. A kit needs its own model and offer check. The two links in this comparison are for the sink-only variants identified above.

If you want a protective grid, start from the exact sink model and the maker’s accessory list. Equal bowls, an open single bowl and a different drain location can require different grids. Our sink grid guide explains the fit checks instead of treating a nominal width as a universal match.

Use the quartz care guide when weighing the material

Karran’s April 2025 quartz care sheet (karran.pictures) recommends cleaning everyday residue with water, a suitable non-abrasive cleaner and a cloth, then rinsing and drying. Liquid dishwashing soap is among its listed choices. Regular drying is part of the care routine, not proof that the surface can never mark.

The same guide says not to place hot pots or other hot items directly on the sink surface and to let them cool completely first. Follow that practical instruction rather than turning a heat-resistance claim into permission to put a stove-hot pan in the bowl.

It also says not to use the sink as a cutting board, to avoid strong alkalis such as ammonia and caustic soda solutions, and to keep drain cleaner off the surface. These are material-care limits worth considering before choosing composite over another sink type.

We have not tested staining, abrasion, sound absorption or resistance to impact. Both picks use the same documented quartz-and-resin construction. The useful distinction between them remains the bowl arrangement; this guide does not claim that one color or layout has a tougher finish.

Make the fit decision before the color decision

Start with the cabinet and countertop plan. Both picks require a minimum 36-inch sink base according to their sheets. Next, compare the inside openings with the cookware and tasks you want the sink to handle. Only then choose the finish and package that meet those requirements.

The checked color is White on both models. The family sheets also list Bisque, Concrete, Black, Grey and Brown. Those are separate selections to verify; a product page showing several color swatches does not establish that every Amazon variant is currently available.

Keep the complete model and color together when ordering. QU-810 and QU-812 identify different bowl arrangements, while WH identifies the maker’s White selection. A photo with two bowls or a broad title containing quartz is not a substitute for that check.

For other materials and configurations, compare our broader kitchen sink guide. For these two Karran choices, the decision is specific: QU-812-WH for the continuous opening, or QU-810-WH for equal bowls with a lowered divider. Choose the layout you will use, and confirm the physical sink and template before the countertop work is finalized.

Frequently asked questions

Do these two Karran models need different cabinet sizes?

Both linked family sheets list a 36-inch minimum cabinet. They also show the same overall dimensions: 32-3/8 × 19-1/4 × 9-5/8 inches.

Which model has one continuous bowl?

The QU-812-WH is the large single-bowl choice. Its family sheet lists a 30 × 16-3/4-inch inside bowl with 9-inch depth.

What does the QU-810 divider measurement mean?

The section drawing labels the divider as 6 inches above the bowl floor. Each bowl is 9 inches deep; the divider remains an obstruction between the two bowls.

Are the linked offers PK1 accessory kits?

No. These exact maker-linked White offers are the sink-only selections. The PK1 kit is a separate package to check for its own model, included accessories and offer.

Can I put stove-hot cookware directly on the sink?

Karran’s quartz care guide says not to place hot pots or other hot items directly on the surface and to let them cool completely first.

How we chose

We read Karran’s exact White sink-only pages, their June 2025 QU-810 and QU-812 sheets, the January 2026 undermount guide and the April 2025 quartz care sheet. We visually inspected both model drawings and the care sheet. Both maker pages directly link the accepted Amazon ASIN for their selected White variant; we also checked the listing model and part-number fields, seller, new condition, stock and cart availability on October 15, 2026.

The QU-670 candidate was excluded after conflicting width labels on its current page. This is a document-based comparison, not a tested performance ranking. Read our selection method and about Plumbing Picks.

Primary sources

• QU-812-WH current maker page (karran.com): Exact White sink-only variant,dimensions,minimumcabinet anddirectAmazonASINmapping.
• QU-812 family sheet, June 2025 (karran.pictures): Construction,bowl andoverall dimensions,template/clips andcolors.
• QU-810-WH current maker page (karran.com): White sink-only identity,sharedfootprint,kit distinction anddirectAmazonASINmapping.
• QU-810 family sheet, June 2025 (karran.pictures): Equalbowls,6-inchdividerheight,overall/bowldepth andmeasurementqualification.
• Quartz care sheet, April 2025 (karran.pictures): Dailycleaning,hotcookware/cutting/chemicalcarelimits.
• Undermount guide, January 2026 (karran.pictures): Actualsink/templatecheck andpreinstallationlayoutconsiderations.