The Kraus Standart PRO KHU100-33 is one of the most popular undermount single bowl stainless steel sinks on the market, and for good reason. With its 16-gauge construction, generous 33-inch footprint, and commercial-grade finish, it strikes a balance between professional performance and homeowner-friendly pricing — typically available for significantly less than comparable sinks from Kohler or Elkay. This guide walks you through everything you need to know — from specs and installation to maintenance and whether it's the right fit for your kitchen.
TL;DR
The Kraus KHU100-33 is a heavy-duty 16-gauge T304 stainless steel undermount sink with a deep 10-inch single bowl, sound-dampening pads, and a satin finish that resists corrosion and rust. It requires a minimum 36-inch base cabinet and is ideal for homeowners who want a spacious, durable workhorse sink without paying premium-brand prices.
Overview of the KHU100-33
The Standart PRO line sits in Kraus's mid-range lineup, designed to offer near-premium build quality at a more accessible price point. The KHU100-33 is the 33-inch single-bowl variant — the largest in the KHU100 series — and is built from T304 stainless steel, the same alloy used in commercial kitchens for its corrosion resistance and durability.
Key Specifications
| Feature | Value |
|---|---|
| Model Number | KHU100-33 |
| Outer Dimensions | 33" L × 18" W |
| Inner Bowl Dimensions | 30-3/4" L × 16" W × 10" D |
| Gauge | 16-gauge (1.5 mm thick) |
| Material | T304 Stainless Steel |
| Finish | Satin / Brushed |
| Mount Type | Undermount |
| Bowl Configuration | Single bowl |
| Drain Opening | 3.5" (standard disposal compatible) |
| Minimum Cabinet Size | 36 inches |
| Sound Dampening | NoiseDefend pads + protective coating |
| Warranty | Limited Lifetime |
What Makes 16-Gauge Steel Important
Sink gauge measures the thickness of the steel — and counterintuitively, lower numbers mean thicker steel. A 16-gauge sink like the KHU100-33 is approximately 1.5 mm thick, compared to the more common 18-gauge (1.2 mm) found in budget sinks. The practical benefits are significant:
- Less flex and vibration when running the disposal or filling pots
- Quieter operation because thicker steel resonates less
- Better dent resistance from heavy cookware
- Improved long-term durability against warping
Quick tip: Combined with the factory-applied sound-dampening pads and undercoating, the 16-gauge steel makes this sink noticeably quieter than typical stainless options — close to the experience of a composite sink.
Pros and Cons
Pros
- Heavy-duty 16-gauge T304 stainless steel
- Deep 10-inch bowl fits oversized cookware and baking sheets
- Excellent sound dampening for a stainless sink
- Tight 10mm radius corners maximize usable bowl space
- Commercial-grade satin finish hides scratches well
- Limited lifetime warranty
- Includes basket strainer, bottom grid, and drain cover
Cons
- Requires a 36-inch minimum cabinet — not for small kitchens
- Heavier than standard sinks; installation may need two people
- Hard water can leave visible spots without regular wiping
- No pre-drilled faucet holes (typical for undermount, but plan accordingly)
Design Features Worth Knowing
Sharper corners create a modern look and increase the usable bowl area compared to traditional rounded corners, while still being easy to clean.
Oversized rubber pads cover more than 80% of the underside, paired with a non-toxic protective undercoating to absorb vibration and reduce noise.
The bowl floor is gently sloped toward the rear-set drain, helping water and debris flow naturally without pooling.
The off-center drain placement leaves more usable space on the bowl floor and creates more storage room under the sink for a disposal or P-trap.
Installation Guide
Before You Start
Confirm your base cabinet is at least 36 inches wide. The sink itself weighs around 30 pounds, and once mounted with brackets and silicone, it needs solid support during curing. You'll also want to plan for:
- Granite, quartz, solid surface, or other stone countertop (undermount is not suitable for laminate)
- Pre-cut sink opening sized per Kraus's template
- Mounting clips (included) and 100% silicone caulk
- A faucet hole drilled in the countertop or rear deck
Step-by-Step Installation
- Dry-fit the sink against the underside of the countertop to verify alignment with the cutout.
- Apply a continuous bead of silicone around the top rim of the sink.
- Position the sink from below, pressing it firmly against the countertop with a temporary support brace from inside the cabinet.
- Install mounting clips at evenly spaced intervals around the sink rim, tightening just enough to hold without distorting.
- Wipe excess silicone from inside the bowl edge before it cures.
- Allow 24 hours for the silicone to fully cure before removing the brace or running water.
- Install the drain assembly, faucet, and disposal after the silicone has set.
Important: Many fabricators prefer to mount undermount sinks before the countertop is installed, using epoxy or a stone-supported clip system. If you're working with a pro installer, follow their preferred method rather than the DIY approach.
Compatibility and Accessories
The KHU100-33 ships with several accessories included, but you can customize further:
- Included: Stainless steel bottom grid, basket strainer, drain cover, and mounting hardware
- Compatible disposals: Any standard 3.5-inch garbage disposal (InSinkErator, Waste King, Moen, etc.)
- Cutting boards: Kraus sells a custom-fit serving board (model KCBT-103BB) that bridges the bowl
- Roll-up drying racks in the 17-inch length range fit nicely across the bowl
Maintenance and Care
Daily Care
Wipe the sink dry after each use with a soft cloth. Stainless steel resists most stains, but mineral deposits from hard water can leave spots if water is allowed to evaporate on the surface.
Weekly Cleaning
Use a non-abrasive cleaner like Bar Keepers Friend or a mild dish soap with warm water. Always scrub in the direction of the steel's grain — the satin brush lines — to maintain the finish's appearance.
What to Avoid
- Steel wool or abrasive scouring pads (they will scratch the finish)
- Bleach or chlorine-based cleaners left to sit on the surface
- Leaving wet cast iron, steel cans, or rusty objects in the bowl overnight
- Rubber mats that trap water against the steel — use the included grid instead
Pro tip: Light scratches on a brushed stainless sink are inevitable but can be blended out by gently rubbing a fine Scotch-Brite pad in the direction of the grain. The satin finish makes these scratches far less visible than they would be on a polished sink.
Who Is This Sink For?
The KHU100-33 is an excellent fit if you:
- Are remodeling a kitchen with a 36-inch or larger sink base cabinet
- Cook frequently and need to clean large pots, sheet pans, or cutting boards
- Want commercial-grade durability without the price of a Kohler or Elkay Crosstown equivalent
- Prefer a deep, single-bowl layout over a divided sink
- Have a stone or solid-surface countertop suitable for undermounting
It's not the right pick if your cabinet is smaller than 36 inches, you have a laminate countertop, or you prefer the workflow flexibility of a double-bowl sink. If you want a farmhouse style instead, consider the Ruvati Fireclay 30-inch apron-front sink, or for compact kitchens the Blanco Precis 24-inch undermount.
How It Compares to Alternatives
| Model | Gauge | Bowl Depth | Best For |
|---|---|---|---|
| Kraus KHU100-33 | 16 | 10" | Best all-around value |
| Kraus KWU110-32 (Kore) | 16 | 10" | Workstation features |
| Ruvati Gravena RVH7350 | 16 | 10" | Tight-radius alternative at similar price |
| Kohler Vault K-3942-1-NA | 18 | 9-5/16" | Premium brand finish |
| Elkay Crosstown ECTRUD33179DBG | 16 | 9" | Double-bowl alternative |
Frequently Asked Questions
Will the KHU100-33 fit a 33-inch base cabinet?
No. Despite the sink being 33 inches wide, the outer rim and mounting clips require a 36-inch minimum base cabinet for proper installation.
Is the bottom grid included?
Yes. Kraus includes a custom-fit stainless steel bottom grid, basket strainer, and drain cover with the sink — accessories that often cost extra with competing brands.
Can I install this with a laminate countertop?
It is not recommended. Undermount sinks rely on the structural integrity of stone, quartz, or solid surface countertops. Laminate's particle board core can swell and fail when exposed to moisture at the cut edge.
How many faucet holes does the sink have?
None. As an undermount sink, all faucet holes are drilled in the countertop or rear deck — giving you flexibility in faucet placement and the option for a single hole, three-hole, or deck-mounted setup.
Is this sink magnetic?
T304 stainless steel is austenitic and only weakly magnetic — a small magnet may stick lightly but won't hold strongly. This is normal and actually a sign of high-quality stainless with proper chromium and nickel content.
Does it work with a garbage disposal?
Yes. The 3.5-inch drain opening is the standard size compatible with virtually all major garbage disposals on the market.
What's the difference between the Standart PRO and the Kore line?
Both lines use the same 16-gauge T304 steel and similar bowl shapes. The Kore series adds workstation features — integrated ledges and accessories like cutting boards, colanders, and drying racks that slide along the rim.
Related Kitchen Guides
- Bosch 500 Series SHPM65Z55N: The Complete Buying Guide — pair this sink with a quiet, high-performance dishwasher.
- KitchenAid KDTM354ESS Buying Guide — another strong dishwasher pick for a kitchen remodel.
- GE GDP670SYVFS Review — explore a feature-rich dishwasher to round out your kitchen upgrade.
Final Verdict
A Reliable, High-Value Workhorse Sink
Editor's Rating: 4.6 / 5
The Kraus KHU100-33 hits the sweet spot for most kitchen remodels: it offers genuine 16-gauge construction, real commercial-grade T304 steel, smart sound dampening, and a deep usable bowl — all backed by a lifetime warranty. If you have the cabinet space for it, this sink delivers premium quality and daily usability that holds up for years, making it one of the strongest value picks in the undermount stainless category.
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