Best Fiberglass Shower Pans (April 2024) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

DreamLine SlimLine 36 in. D x 60 in. W x 2 3/4 in. H Right Drain Double Thres...

9.9
CPR Score
Top 2

Kingston Brass VTSB603221L Grenada Shower Base, White 60 x 32 x 20.88

9.8
CPR Score
Top 3

Swiss Madison Well Made Forever SM-SB537W Aquatique 60 X 32 Single Threshold ...

9.7
CPR Score
Tips


Based on our evaluations of 189 Fiberglass Shower Pans and the analysis of over 2,109 consumer satisfaction reviews, We have rank top 30 Best Fiberglass Shower Pans reviews of different brands, such asKohler, American Standard, Kingston Brass, DreamLine, Swiss Madison Well Made Forever, Tile Redi USA, Mustee, ANZZI And CKB.

* Cherrypicksreviews.com is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Fiberglass Shower Pans Rated by CherryPicks

Market Overview
Fiberglass Shower Pans Reviewed
  • Reviews Analyzed: 2,109 Items
  • CPR Avg. Rating: 8.6 / 10
30 Products Evaluated
  • Highest Price: $1,861.05
  • Lowest Price: $393.59
  • Avg. Price: $813.77
Price Disclaimer

Top 30 Fiberglass Shower Pans on Amazon (Verified You can Buy)

Top 1

DreamLine SlimLine 36 in. D x 60 in. W x 2 3/4 in. H Right Drain Double Threshold Shower Base in White, DLT-1036602

DreamLine
DLT-1036602
36.0 x 60.0 x 2.75 Inches
46.0 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
StudioLX -
Best Home Improvement Store -
Time Out Pro -

Features

Model Size: 36 in. D x 60 in. W x 2 3/4 in. H
Base Type: Double Threshold (2-Wall Corner)
Show More

Kingston Brass VTSB603221L Grenada Shower Base, White 60 x 32 x 20.88

Kingston Brass
VTSB603221L
60.0 x 32.0 x 20.88 Inches
88.2 Pounds

Ratings for Kingston Brass (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Acrylic construction with fiberglass and resin reinforcement
Single threshold for three-wall installation
Show More

Swiss Madison Well Made Forever SM-SB537W Aquatique 60 X 32 Single Threshold Shower Base with Left Drain and Integral Right Hand Seat in White

Swiss Madison Well Made Forever
SM-SB537W
59.75 x 32.0 x 23.6 Inches
61.0 pounds

Ratings for Swiss Madison Well Made Forever (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Low single threshold, for easy access
High gloss white acrylic, with fiberglass reinforcement
Show More

Swiss Madison Well Made Forever SM-SB538W Aquatique 60 X 32 Single Threshold Shower Base with Right Drain and Integral Left Hand Seat in White

Swiss Madison Well Made Forever
SM-SB538W
59.75 x 32.0 x 23.6 Inches
61.0 Pounds

Ratings for Swiss Madison Well Made Forever (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Buildcom 1,641

Features

Low single threshold, for easy access
High gloss white acrylic, with fiberglass reinforcement
Show More

DreamLine SlimLine 36 in. D x 60 in. W x 2 3/4 in. H Center Drain Single Threshold Shower Base in White, DLT-1136600

DreamLine
DLT-1136600
36.0 x 60.0 x 2.75 Inches
46.0 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Time Out Pro -

Features

Model Size: 36 in. D x 60 in. W x 2 3/4 in. H
Base Type: Single Threshold (3-Wall Alcove)
Show More

DreamLine 30 in. D x 60 in. W x 76 3/4 in. H Left Drain Acrylic Shower Base and QWALL-5 Backwall Kit In White, DL-6189L-01

DreamLine
DL-6189L-01
30.0 x 60.0 x 76.75 Inches
101.41 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Time Out Pro -

Features

Kit Includes: QWall-5 Backwalls and Single Threshold SlimLine Base; Kit Size: 30 in. D x 60 in. W x 76 3/4 in. H; Drain Location: Left; Color: White
Base Installation: Direct to studs (Unfinished walls: Prior to backerboard, cement board, etc.); cUPC certified
Show More
Top 7

DreamLine 30 in. D x 60 in. W x 75 5/8 in. H Left Drain Acrylic Shower Base and QWALL-3 Backwall Kit In White, DL-6145L-01

DreamLine
DL-6145L-01
30.0 x 60.0 x 75.625 Inches
82.01 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Buildcom 1,641
Time Out Pro -

Features

Kit Includes: QWall-3 Backwalls and Single Threshold SlimLine Base; Kit Size: 30 in. D x 60 in. W x 75 5/8 in. H; Drain Location: Left; Color: White
Base Installation: Direct to studs (Unfinished walls: Prior to backerboard, cement board, etc.); cUPC certified
Show More

DreamLine 36 in. D x 60 in. W x 75 5/8 in. H Center Drain Acrylic Shower Base and QWALL-3 Backwall Kit In White, DL-6148C-01

DreamLine
DL-6148C-01
36.0 x 60.0 x 75.625 Inches
89.95 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Buildcom 1,641
ArtOfBath -
Time Out Pro -

Features

Kit Includes: QWall-3 Backwalls and Single Threshold SlimLine Base; Kit Size: 36 in. D x 60 in. W x 75 5/8 in. H; Drain Location: Center; Color: White
Base Installation: Direct to studs (Unfinished walls: Prior to backerboard, cement board, etc.); cUPC certified
Show More

KOHLER K-8659-0 60" x 42" Rely Single-Threshold Shower Base with Center Drain, White

Kohler
K-8659-0
42.0 x 60.0 x 4.19 Inches
82.82 Pounds

Ratings for Kohler (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Buildcom 1,641

Features

Low-threshold design for easy entry and exit
Molded-in textured floor
Show More
Top 10

Mustee 748-32WHT Durawall 73.25-in x 48-in x 32-in Fiberglass Shower Walls for Rectangular Showers

Mustee
748-32WHT
32.0 x 48.0 x 73.25 Inches
0.0006 Pounds

Ratings for Mustee (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Bath1 -

DreamLine 34 in. D x 60 in. W x 75 5/8 in. H Center Drain Acrylic Shower Base and QWALL-3 Backwall Kit In White, DL-6147C-01

DreamLine
DL-6147C-01
34.0 x 60.0 x 75.625 Inches
94.8 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Time Out Pro -

Features

Kit Includes: QWall-3 Backwalls and Single Threshold SlimLine Base; Kit Size: 34 in. D x 60 in. W x 75 5/8 in. H; Drain Location: Center; Color: White
Base Installation: Direct to studs (Unfinished walls: Prior to backerboard, cement board, etc.); cUPC certified
Show More
Top 12

DreamLine 32 in. D x 32 in. W x 76 3/4 in. H Center Drain Acrylic Shower Base and QWALL-5 Backwall Kit In White, DL-6195C-01

DreamLine
DL-6195C-01
32.0 x 32.0 x 76.75 Inches
73.41 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Buildcom 1,641
ArtOfBath -
Time Out Pro -

Features

Kit Includes: QWall-5 Backwalls and Single Threshold SlimLine Base; Kit Size: 32 in. D x 32 in. W x 76 3/4 in. H; Drain Location: Center; Color: White
Base Installation: Direct to studs (Unfinished walls: Prior to backerboard, cement board, etc.); cUPC certified
Show More
Top 13

American Standard A8004L-CO.020 Studio 48" X 36" Acrylic Shower Base - Center Drain, White

American Standard
A8004L-CO.020
48.0 x 36.0 x 3.5 Inches
46.0 Pounds

Ratings for American Standard (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

High Gloss Acrylic with fiberglass reinforcement
Single threshold unit
Show More
Top 14

American Standard 3060SH.RW 30-Inch By 60-Inch By 37-Inch Seated Shower with Drain, White, Right Hand

American Standard
3060SH.RW
0.0 x 0.0 x 0.0 Inches
75.0 Pounds

Ratings for American Standard (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

BATHTUB

DreamLine 32 in. D x 60 in. W x 76 3/4 in. H Left Drain Acrylic Shower Base and QWALL-5 Backwall Kit In White, DL-6190L-01

DreamLine
DL-6190L-01
32.0 x 60.0 x 76.75 Inches
111.55 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Time Out Pro -

Features

Kit Includes: QWall-5 Backwalls and Single Threshold SlimLine Base; Kit Size: 32 in. D x 60 in. W x 76 3/4 in. H; Drain Location: Left; Color: White
Base Installation: Direct to studs (Unfinished walls: Prior to backerboard, cement board, etc.); cUPC certified
Show More
Top 16

ANZZI Clossi 60" x 36" Single Threshold Rectangular Left Drain Location Shower Base in Glossy White | Marine Grade Acrylic and High Yield Fiberglass | Integrated Slip Resistant | SB-AZ007WL

ANZZI
SB-AZ007WL
60.0 x 36.0 x 4.0 Inches

Ratings for ANZZI (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
ANZZI -
COZY HOME INC -
PARMA HOME -

Features

✅ [ PRODUCT DIMENSION ] : 60 in. L x 36 in. W x 4 in. H - Modern rectangular shape
✅ [ HIGH QUALITY MATERIAL ] : Easy to handle RHINO ALLOY certified marine grade acrylic and yield fiberglass
Show More

CKB 60 in. L x 32 in. W Single Threshold Shower Base, Center Drain with Nonslip, White fiberglass Shower Pan

CKB
ABCS6032C/1-A
60.0 x 32.0 x 3.5 Inches
50.7 Pounds

Ratings for CKB (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
CKB Shower Doors -

Features

Model Size: 60 in. L x 32 in. W x 3-1/2 in. H;
Base Type: Single threshold. Integrated tile flanges on 3 sides for alcove wall installation;
Show More

DreamLine SlimLine 34 in. D x 60 in. W x 2 3/4 in. H Right Drain Single Threshold Shower Base in White, DLT-1134602

DreamLine
DLT-1134602
34.0 x 60.0 x 2.75 Inches
61.29 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Buildcom 1,641
StudioLX -
ArtOfBath -
Best Home Improvement Store -

Features

Model Size: 34 in. D x 60 in. W x 2 3/4 in. H
Base Type: Single Threshold (3-Wall Alcove)
Show More
Top 19

CKB 60 in. L x 32 in. W Left Drain Shower Base, Single Threshold Shower Pan with Slip Resistant Textured Surface, White

CKB
Left Drain_White
60.0 x 32.0 x 4.0 Inches

Ratings for CKB (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
CKB Shower Doors -

Features

[Model Size] 60in. L x 32in. W x 4in. H.
[Non-slip] Textured floor surface provides slip-resistance for safety, qualified acrylic for easy maintenance and clean. Multilayer construction with stain resistant surface, durable fiberglass reinforced Acrylic/ABS materials.
Show More

DreamLine SlimLine 32 in. D x 60 in. W x 2 3/4 in. H Left Drain Single Threshold Shower Base in White, DLT-1132601

DreamLine
DLT-1132601
32.0 x 60.0 x 2.75 Inches
60.85 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Home Essentials ✅ 213

Features

Model Size: 32 in. D x 60 in. W x 2 3/4 in. H
Base Type: Single Threshold (3-Wall Alcove)
Show More

DreamLine SlimLine 34 in. D x 54 in. W x 2 3/4 in. H Center Drain Single Threshold Shower Base in White, DLT-1134540

DreamLine
DLT-1134540
54.0 x 34.0 x 2.75 Inches
1.0 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Time Out Pro -

Features

Model Size: 34 in. D x 54 in. W x 2 3/4 in. H
Base Type: Single Threshold (3-Wall Alcove)
Show More

KOHLER K-1976-0 Tresham 60-Inch x 32-Inch Single-Threshold Shower Base with integral left-hand seat and right center drain, White

Kohler
K-1976-0
1.0 x 1.0 x 1.0 Inches
1.0 Pounds

Ratings for Kohler (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Buildcom 1,641
eFaucets 9,655

Features

Low-threshold design for easy entry and exit
Single threshold for three-wall installation
Show More
Top 23

Mustee 360L CareGiver 360 Barrier-Free Shower Floor, Left-Hand, White

Mustee
360L
60.2 x 4.7 x 30.7 Inches
50.0 Pounds
  • Unknown: English

Ratings for Mustee (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Bath1 -

Features

Produced from high-grade, reinforced, molded fiberglass for optimum strength and impact resistance
Fits 60-in wide by 30-in deep alcove
Show More

Tile Redi B3060R-SCRDPVZ3 Shower Pan Kit with Flashing, Right Drain- Single Curb Shower Base, 2" PVC Drain and Plate Included, 60" Width x 30" Depth

Tile Redi USA
B3060R-SCRDPVZ3
30.0 x 60.0 x 7.0 Inches

Ratings for Tile Redi USA (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Tile Redi USA -

Features

ALL-IN-ONE SHOWER SOLUTION: One-piece, leak-proof, pre-pitched shower pan with integrated curb and splash walls
READY TO TILE: Install tile directly on shower pan surface to customize base to the look and feel of your bathroom
Show More

DreamLine SlimLine 36 in. D x 48 in. W x 2 3/4 in. H Right Drain Double Threshold Shower Base in White, DLT-1036482

DreamLine
DLT-1036482
36.0 x 48.0 x 2.75 Inches
48.5 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Buildcom 1,641
Home Essentials ✅ 213
ArtOfBath -
Best Home Improvement Store -

Features

Model Size: 36 in. D x 48 in. W x 2 3/4 in. H
Base Type: Double Threshold (2-Wall Corner)
Show More
Top 26

Kingston Brass VTSB603221R Grenada Shower Base, White

Kingston Brass
VTSB603221R
60.0 x 32.0 x 20.88 Inches
88.2 Pounds

Ratings for Kingston Brass (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Acrylic construction with fiberglass and resin reinforcement
Single threshold for three-wall installation
Show More

DreamLine SlimLine 36 in. D x 42 in. W x 2 3/4 in. H Center Drain Single Threshold Shower Base in White, DLT-1136420

DreamLine
DLT-1136420
36.0 x 42.0 x 2.75 Inches
35.27 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Home Essentials ✅ 213
ArtOfBath -

Features

Model Size: 36 in. D x 42 in. W x 2 3/4 in. H; Base Type: Single Threshold (3-Wall Alcove); Color: White
Drain Location: Center (Centered on width only; See technical drawing for exact location); cUPC certified
Show More

Kohler K-9479-0 Archer FRP Shower Receptor with Removable Cover, 60-Inch by 36-Inch, White

Kohler
9479-0
36.0 x 60.0 x 3.69 Inches
58.0 Pounds

Ratings for Kohler (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
eFaucets 9,655
General Plumbing Supply -

Features

60-InchL by 36-InchW by 3-11/16-InchH
Covered drain adds a unique design element and enhances comfort
Show More

Tile Redi WF3248L-RB32-KIT Shower Pan and Bench with Left Drain- Single Curb Shower Base, Bench, 2" PVC Drain, and Grate Included, 60" Width x 32" Depth

Tile Redi USA
WF3248L-RB32-KIT
32.0 x 60.0 x 17.75 Inches
27.0 Pounds

Ratings for Tile Redi USA (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

BASE, BENCH, & FLASHING: Pre-pitched shower pan with integrated curb and splash walls; also includes 12-inch wide bench and flashing
READY TO TILE: Install tile directly on shower pan and bench surface to customize base to the look and feel of your bathroom
Show More

DreamLine SlimLine 32 in. D x 48 in. W x 2 3/4 in. H Center Drain Single Threshold Shower Base in White, DLT-1132480

DreamLine
DLT-1132480
32.0 x 48.0 x 2.75 Inches
41.89 Pounds

Ratings for DreamLine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Home Essentials ✅ 213
ArtOfBath -

Features

Model Size: 32 in. D x 48 in. W x 2 3/4 in. H
Base Type: Single Threshold (3-Wall Alcove)
Show More

Top 10 Fiberglass Shower Pans - Verified to Buy (Apr. 2024)

Top 9 Fiberglass Shower Pans Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • DreamLine
  • Kingston Brass
  • Swiss Madison Well Made Forever
  • Kohler
  • Mustee
  • American Standard
  • ANZZI
  • CKB
  • Tile Redi USA

Related Fiberglass Shower Pans Guides

For more personalized Fiberglass Shower Pans guides, Check those pages,


Top 10 Fiberglass Shower Pans Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 Home Essentials ✅ 8,423 4.5
🥈 Buildcom 2,327 4.6
🥉 eFaucets 607 4.5
4 Amazon.com 385 4.7
5 Bath1 201 4.5
6 General Plumbing Supply 111 4.2
7 ANZZI 109 4.5
8 Best Home Improvement Store 94 3.8
9 COZY HOME INC 54 5.0
10 StudioLX 47 4.9
View or download top Fiberglass Shower Pans seller & rating report
Home Essentials ✅ [8423] Buildcom [2327] eFaucets [607] Amazon.com [385] Bath1 [201] General Plumbing Supply [111] ANZZI [109] Best Home Improvement Store [94] COZY HOME INC [54] StudioLX [47] Home Essentials ✅ 68% Buildcom 19% eFaucets 5% Amazon.com 3% Bath1 2% General Plumbing Supply 1% ANZZI 1% Best Home Improvement Store 1% COZY HOME INC 0% StudioLX 0%

[Get] Fiberglass Shower Pans Deals (✅Exclusively for Prime)

What does "Amazon Fulfilled" Mean?

Amazon Fulfilled refers to products handled by Amazon's logistics, which indicates that the product is stored, packed, and shipped by Amazon from one of its fulfillment centers.

When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.

What does "Prime" Mean?

"Prime" refers to Amazon Prime Member (Join Amazon Prime Now), which indicates eligibility for Prime benefits. When you see "Prime" next to a product on Amazon, This generally means that if you are  an Amazon Prime member, you can get free two-day shipping on that product, and sometimes even same-day or one-day shipping depending on your location.

Prime members also have access to other benefits, including 2-Day ShippingExclusive Member DealsPrime VideoBuy With PrimeAmazon MusicPrime Gaming, and more.

Shop Prime Fiberglass Shower Pans Deals

What does "Free Shipping" Mean?

"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.

Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.


Why Should You Trust Us?

Now hundreds and thousands of Kitchen & Bath Fixtures supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Fiberglass Shower Pans to buy for new April 2024?

CherryPicks’s Methodology for Evaluating Fiberglass Shower Pans

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Kitchen & Bath Fixtures items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 189 of Fiberglass Shower Pans reviews based on our selection criteria. It helped us shortlist the top qualified and rated Fiberglass Shower Pans for Kitchen & Bath Fixtures, We found that most customers choose Fiberglass Shower Pans with an average price of $813.77, and the top brands are Kohler, American Standard, Kingston Brass, DreamLine, Swiss Madison Well Made Forever, Tile Redi USA, Mustee, ANZZI And CKB

Then our expert-level editors reviewed all those quality items and selected the top 30 Fiberglass Shower Pans for you, We have researched hundreds of sellers and picked the top sellers for Kitchen & Bath Fixtures, including Home Essentials ✅, Buildcom, eFaucets, Amazon.com, Bath1, General Plumbing Supply, ANZZI, Best Home Improvement Store, COZY HOME INC, StudioLX, Time Out Pro And ArtOfBath. The DreamLine SlimLine 36 in. D x 60 in. W x 2 3/4 ... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 60 consumers with an average rating of 4.5.

We've helped a lot of satisfied users get the right Tools & Home Improvement product based on their needs, and save lots of time for them to pick Fiberglass Shower Pans to buy.


Written By Nathaniel Kapman

Nathaniel Kapman owns a small store where he sells tools for home improvement. From interacting with these tools over the years, he has developed a wealth of experience and can tell which tool is good for what. However, on this platform, he does not use intuition. Instead, he follows the laid down guidelines, making his reviews and guide top-notch.