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Stainless steel undermount kitchen sink, 33x18 — SANIKB S3318SANIKB Undermount Kitchen Sink S3318
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Large Single Bowl Undermount Kitchen Sink 33×18, Wide Basin

SKU S3318
Certification
cUPC
Min. order
50 pcs
Lead time
30–45 days
Reply time
12h
Material SUS304 stainless steel, 18 gauge (1.2 mm)
Type Handmade undermount kitchen sink
Size 33" × 18" × 10" (838 × 457 × 254 mm) Custom sizes
Mount Undermount
Finish
Brushed stainless

Send a spec. Get a real quote in 12h.

Engineer-reviewed. cUPC · CE · ISO 9001 ready. 30–45 day lead time, FOB or CIF.

One itemised quote — not five
Feasibility & certification checked per market
Have a spec file? Email it with your reference number
— Project brief B2B only
Enquiry about Large Single Bowl Undermount Kitchen Sink 33×18, Wide Basin SKU S3318
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Engineer reply within 24 working hours

12 consecutive years at KBIS and IBS.

— Most recent
Feb 2026 KBIS· Orlando, USA
Mar 2026 Expo Revestir· São Paulo, Brazil
16 years on the floor · 6 international shows annually
2026 Expo Revestir

2026Expo Revestir

São Paulo, Brazil
2026 KBIS

2026KBIS

Orlando, Florida
2025 KBIS

2025KBIS

Las Vegas, USA
2025 The Big 5

2025The Big 5

Dubai, UAE
2024 IBS

2024IBS

Orlando, USA
2024 Expo Guadalajara

2024Expo Guadalajara

Guadalajara, Mexico
2023 Canton Fair

2023Canton Fair

Guangzhou, China
2019 Cersaie

2019Cersaie

Bologna, Italy
2018 ISH

2018ISH

Frankfurt, Germany
2017 The Big 5

2017The Big 5

Dubai, UAE
2014 KBIS

2014KBIS

Las Vegas — US debut
2012 BAU

2012BAU

Munich, Germany

Standard on every shipment.

IAPMO cUPC certificate
ISO 9001 quality management certificate
WRAS approved product certificate
IAPMO certificate of listing
UDEM CE technical inspection certificate

33 × 18, One Bowl

A stainless steel one bowl kitchen sink at 33 by 18

Thirty three inches across with nothing dividing it. This is the width buyers move to when a double bowl comes off the schedule and the run stays the same.

01 / WIDTH

Uninterrupted 33 inch basin

No divider, so the full published width is one working area. That is the argument a showroom makes at the counter.

02 / DEPTH

Ten inches, 254 mm

Depth and width both come from the record, so a schedule can be written straight off the published figures.

The stainless steel kitchen sink range carries the narrower bodies for shorter cabinet runs.

Fit & Clearance

Cabinet width behind a 33 inch bowl

A 33 inch bowl and a 33 inch cabinet are not the same thing. The published record is 33 by 18 by 10 inches, 838 by 457 by 254 mm.

Overall Size 33" × 18" × 10" (838 × 457 × 254 mm)
Mounting Undermount
Bowl Single
Listed Depth 10" (254 mm)

A 33 inch body does not go into a 33 inch cabinet. The carcass has to clear the bowl plus the reveal on both sides, so confirm the interior width before the counter is cut.

Ask for the drawing with the drain centre marked. On a wide single bowl the waste position also decides where the trap sits inside the cabinet.

Undermount reveal is the fabricator's detail. Agree it in writing.

Construction & Finish

One material line for the submittal

SUS304 stainless steel, 18 gauge, 1.2 mm, brushed stainless. That is the full material record.

1.2 MM

What the specifier can quote

Grade, gauge, thickness and finish are published. Anything past those four figures is confirmed by the factory in writing before it is used.

The type line reads handmade undermount and nothing else. Keep construction wording off the submittal until the factory issues it.

Finish name on the PO line, so the carton label matches the schedule.

Compliance

Wide bodies, same documentation rule

DOC
Spec sheet with the quotation

Issued against the model code on request, so the 33 inch body is documented before the submittal goes in.

No approval scheme is recorded against S3318 and none is implied by its size.

Name the destination market at enquiry. What has to be tested, marked or documented is quoted against that market.

Procurement

The width that anchors a dealer range

The factory quotes the anchor size and the sizes around it in one pass.

Published MOQ 50 pcs
Standard Lead Time 30–45 days after sample approval

One bowl at 33 inches is usually the first code a range is built on. Several codes can sit on one order, so the range lands together rather than in pieces.

An anchor size is where own brand packing usually starts. Carton artwork, logo and insert design run under the SANIKB OEM and ODM programme, with a reply on an RFQ inside 12 hours.

Include these details with the RFQ

  • Quantity by model code
  • Cabinet interior width available
  • Drain centre on the drawing
  • Waste, strainer and accessory scope
  • Carton marking and artwork
  • Destination port and Incoterm
  • Target shipment date

MOQ is 50 pcs per code, and codes can share an order.

How we work

From enquiry to shipment

A factory-direct process built for importers, distributors and project buyers. No trading layer in between.

  1. 01

    Send the enquiry

    Tell us the model, quantity, destination market and any branding or packaging requirement. A spec sheet or drawing helps but is not required to start.

    Replied within 12 hours
  2. 02

    Our sales team contacts you

    A named account manager follows up by email or WhatsApp, confirms the specification and clarifies anything missing before pricing.

    Email or WhatsApp
  3. 03

    Quotation

    You receive a written quotation with unit price, MOQ, packing details, lead time and the trade term you asked for. Entry, mid and premium build levels can be quoted side by side.

    FOB or CIF
  4. 04

    Sample approval

    We send a sample for finish, function and packaging sign-off. Branded samples are produced once artwork is confirmed.

    Before mass production
  5. 05

    Production and shipment

    Mass production starts after sample approval and deposit. QC and inspection run before loading, then the order ships to the agreed port.

    30–45 days after approval
50+ New models developed every year, tracking current North American and European trends
12h Maximum first response to an enquiry
Since 2000 Foshan factory, B2B trade only

OEM and ODM to your specification

We develop to a brief. Send a reference model, a drawing or simply the price band and market you are targeting, and we will propose what fits. Entry, mid and premium builds are all available from the same factory.

  • Your logo on product, carton and documentation
  • Private-label packaging and manuals
  • Custom finish matched to your standard
  • Custom dimensions and tooling where volume supports it
  • Product development from your reference or price target
  • Destination-market documentation prepared on request

FAQs

How large is this single-bowl sink?

The wide basin measures 33 × 18 × 10 in. (838 × 457 × 254 mm), the largest one-bowl footprint in this line, ideal for big cookware and sheet pans.

What grade of stainless steel is used?

It is built from SUS304 stainless steel at 18 gauge (1.2 mm) with a brushed finish for strength, rust resistance and easy scratch-hiding upkeep.

Do you offer custom sizes and low MOQ?

Yes. We manufacture these stainless steel kitchen sinks to order with OEM/ODM service, custom cabinet sizing and low MOQ for wholesale and project supply.