Skip to navigation Skip to content
Your Cart
Logo with three red horizontal bars on the left, followed by the text Material Handling USA in bold white letters on a dark background.
  • My Account
  • Help Center
$0.00 0
  • Contact Us
  • Products
    • Automotive
    • Evidence Storage
    • Guard Booths
    • Laboratory
    • Pallet Rack
    • Mezzanines
    • Mobile Shelving
    • Modular Buildings
    • Security Cages
    • Shelving Solutions
    • Shipping Supplies
    • Warehouse Solutions
    • Vidir
  • Shop Online Products
  • Design Services
    • Automotive Parts Room Design
    • Evidence Storage Room Design
    • Guard Shack Design
    • Server Cages Design
    • Medical Lab Design
    • Hospital Stockroom Design
    • In Plant Office Design
    • Laboratory Design
    • Locker Room Design
    • Museum Design
    • Pallet Rack Design
    • Readiness Center Storage Design
    • Retail Stockroom Design
    • Stockroom Design
    • Tenant Locker Design
    • Warehouse Design
  • Business Type
    • Data Centers
    • Education
    • Food Service
    • Government
    • Healthcare
    • Laboratories
    • Law Enforcement
    • Manufacturing
    • Office
    • Property Management
    • Warehouse
  • Resources
    • Brochures
    • Photo Gallery
    • Specifications
    • AIA Presentations
    • Case Studies
  • What’s New
  • Contact Us
  • Products
    • Automotive
    • Evidence Storage
    • Guard Booths
    • Laboratory
    • Pallet Rack
    • Mezzanines
    • Mobile Shelving
    • Modular Buildings
    • Security Cages
    • Shelving Solutions
    • Shipping Supplies
    • Warehouse Solutions
    • Vidir
  • Shop Online Products
  • Design Services
    • Automotive Parts Room Design
    • Evidence Storage Room Design
    • Guard Shack Design
    • Server Cages Design
    • Medical Lab Design
    • Hospital Stockroom Design
    • In Plant Office Design
    • Laboratory Design
    • Locker Room Design
    • Museum Design
    • Pallet Rack Design
    • Readiness Center Storage Design
    • Retail Stockroom Design
    • Stockroom Design
    • Tenant Locker Design
    • Warehouse Design
  • Business Type
    • Data Centers
    • Education
    • Food Service
    • Government
    • Healthcare
    • Laboratories
    • Law Enforcement
    • Manufacturing
    • Office
    • Property Management
    • Warehouse
  • Resources
    • Brochures
    • Photo Gallery
    • Specifications
    • AIA Presentations
    • Case Studies
  • What’s New
$0.00 0

Add-On Units

Durable plastic shelving for industrial storage.

Home » Shop » Shelving » Plastic Shelving » Add-On Units » Page 5

Showing 113–140 of 151 results

  • ←
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • →
  • -51%
    The MetroMax Q AQ376G3 4-Shelf Plastic Industrial Shelving Add-On Unit, measuring 18 x 72 x 63, has four adjustable wire shelves with vertical pole support. Set against a plain white backdrop, the light blue shelving may have slight variations in actual dimensions.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ376G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 18″ x 72″ x 63″
    $1,089.00 Original price was: $1,089.00.$538.46Current price is: $538.46. Add to cart
  • -51%
    The MetroMax Q AQ416G3, a 4-shelf plastic industrial shelving add-on unit (21 x 24 x 63), features adjustable perforated shelves and robust tubular legs in gray. Note: Dimensions may vary.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ416G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 24″ x 63″
    $829.00 Original price was: $829.00.$409.89Current price is: $409.89. Add to cart
  • -51%
    The MetroMax Q AQ426G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 21 x 30 x 63, is showcased on a plain white background. It includes four perforated metal shelves and notes dimension variations may occur.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ426G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 30″ x 63″
    $846.00 Original price was: $846.00.$417.58Current price is: $417.58. Add to cart
  • -51%
    The MetroMax Q AQ436G3 4-Shelf Plastic Industrial Shelving Add-On Unit features a metal frame, four slatted shelves, and adjustable legs. It measures 21 x 36 x 63, but actual dimensions may vary from the product shown.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ436G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 36″ x 63″
    $846.00 Original price was: $846.00.$417.58Current price is: $417.58. Add to cart
  • -51%
    The MetroMax Q AQ446G3 add-on unit, 21 x 42 x 63, has a sleek grid pattern with four adjustable shelves against a plain white background. Note: Actual dimensions may vary.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ446G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 42″ x 63″
    $957.00 Original price was: $957.00.$472.53Current price is: $472.53. Add to cart
  • -51%
    The MetroMax Q AQ456G3 4-Shelf Plastic Industrial Shelving Add-On Unit, measuring 21 x 48 x 63, features a metal shelving unit with four adjustable ventilated grid-designed shelves on cylindrical legs. Note: Actual dimensions may vary from product shown.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ456G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 48″ x 63″
    $957.00 Original price was: $957.00.$472.53Current price is: $472.53. Add to cart
  • -51%
    The MetroMax Q AQ466G3 4-Shelf Plastic Industrial Shelving Add-On Unit, measuring 21 x 60 x 63, offers a strong metal design with four adjustable perforated shelves on sturdy vertical poles for customizable height placement. Note: actual dimensions may vary slightly.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ466G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 60″ x 63″
    $1,049.00 Original price was: $1,049.00.$518.68Current price is: $518.68. Add to cart
  • -51%
    The MetroMax Q AQ476G3 4-Shelf Plastic Industrial Shelving Add-On Unit has a silver frame and four blue ventilated rectangular grid shelves. Its dimensions are 21 x 72 x 63, though actual size may vary slightly.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ476G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 72″ x 63″
    $1,281.00 Original price was: $1,281.00.$632.97Current price is: $632.97. Add to cart
  • -51%
    The MetroMax Q AQ516G3 is a 4-shelf plastic industrial shelving add-on unit, measuring 24 x 24 x 63, featuring adjustable grid-patterned gray shelves and blue edges for heavy-duty storage, set against a plain white background. Actual dimensions may vary slightly.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ516G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 24″ x 24″ x 63″
    $855.00 Original price was: $855.00.$421.98Current price is: $421.98. Add to cart
  • -51%
    The MetroMax Q AQ526G3 4-Shelf Plastic Industrial Shelving Add-On Unit features a metal frame, four adjustable slatted shelves, and vertical support rods at each corner. It measures 24 x 30 x 63, but actual dimensions may vary.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ526G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 24″ x 30″ x 63″
    $859.00 Original price was: $859.00.$424.18Current price is: $424.18. Add to cart
  • -51%
    The MetroMax Q AQ536G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 24 x 36 x 63, has a four-tier shelving system with a grid design in blue. Shelves are metal-supported, pictured on white; dimensions might slightly vary.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ536G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 24″ x 36″ x 63″
    $859.00 Original price was: $859.00.$424.18Current price is: $424.18. Add to cart
  • -51%
    A MetroMax Q AQ546G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 24 x 42 x 63, features four adjustable, perforated shelves. Note that actual dimensions may vary from the product shown.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ546G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 24″ x 42″ x 63″
    $1,005.00 Original price was: $1,005.00.$496.70Current price is: $496.70. Add to cart
  • -51%
    The MetroMax Q AQ556G3 Shelving Add-On Unit has four blue perforated shelves with silver supports, measuring 24 x 48 x 63. Its minimalist design contrasts with a plain white background, with a note on possible dimension variations.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ556G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 24″ x 48″ x 63″
    $1,005.00 Original price was: $1,005.00.$496.70Current price is: $496.70. Add to cart
  • -51%
    The MetroMax Q AQ566G3 Add-On Unit features four perforated, adjustable plastic shelves supported by metal vertical posts, with dimensions of 24 x 60 x 63.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ566G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 24″ x 60″ x 63″
    $1,153.00 Original price was: $1,153.00.$569.23Current price is: $569.23. Add to cart
  • -51%
    The MetroMax Q AQ576G3 4-Shelf Plastic Industrial Shelving Add-On Unit includes four adjustable wire mesh shelves, ideal for organization. The unit measures 24 x 72 x 63 and features a silver frame with blue accents. Note: Actual dimensions may vary from product shown.

    Add-On Units, Add-On Units, Metro

    MetroMax Q AQ576G3 4-Shelf Plastic Industrial Shelving Add-On Unit, 24″ x 72″ x 63″
    $1,329.00 Original price was: $1,329.00.$657.14Current price is: $657.14. Add to cart
  • -51%
    The MetroMax Q MQ-182474G-A-4 is a sleek add-on unit featuring four plastic shelves and sturdy supports. The unit, measuring 18 x 24 x 74, is designed with grid-patterned shelves and hooks at its sides and corners. Note: Dimensions may vary slightly from the product shown.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-182474G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 18″ x 24″ x 74″
    $736.00 Original price was: $736.00.$363.74Current price is: $363.74. Add to cart
  • -51%
    The MetroMax Q MQ-183074G-A-4 4-Shelf Shelving Add-On Unit features an 18 x 30 x 74 design with gray perforated shelves and silver supports on a white background. Actual dimensions may vary.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-183074G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 18″ x 30″ x 74″
    $752.00 Original price was: $752.00.$371.43Current price is: $371.43. Add to cart
  • -51%
    The MetroMax Q MQ-183674G-A-4 Add-On Unit includes four adjustable wire shelves on stable metal poles, measuring 18 x 36 x 74. Note: dimensions may vary.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-183674G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 18″ x 36″ x 74″
    $752.00 Original price was: $752.00.$371.43Current price is: $371.43. Add to cart
  • -51%
    The MetroMax Q MQ-184274G-A-4 is a 4-shelf plastic industrial shelving add-on unit with a metal frame, measuring 18 x 42 x 74. It features adjustable, perforated shelves and is shown against a plain white background; actual dimensions may vary.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-184274G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 18″ x 42″ x 74″
    $864.00 Original price was: $864.00.$426.37Current price is: $426.37. Add to cart
  • -51%
    The MetroMax Q MQ-184874G-A-4 4-Shelf Plastic Industrial Shelving Add-On, measuring 18 x 48 x 74, features a sleek design and sturdy vertical posts. Ideal for any space, it complements a plain white backdrop. Actual dimensions may vary from product shown.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-184874G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 18″ x 48″ x 74″
    $864.00 Original price was: $864.00.$426.37Current price is: $426.37. Add to cart
  • -51%
    The MetroMax Q MQ-185474G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, measuring 18 x 54 x 74, offers a grid-like design with sturdy vertical posts in light blue, ideal for organizing industrial storage spaces.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-185474G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 18″ x 54″ x 74″
    $988.00 Original price was: $988.00.$487.91Current price is: $487.91. Add to cart
  • -51%
    The MetroMax Q MQ-186074G-A-4 add-on unit is a freestanding, 4-shelf plastic shelving system with metal supports and slatted shelves. Its dimensions are 18 x 60 x 74, but actual sizes may vary from the product shown.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-186074G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 18″ x 60″ x 74″
    $988.00 Original price was: $988.00.$487.91Current price is: $487.91. Add to cart
  • -51%
    The MetroMax Q MQ-187274G-A-4 is a 4-shelf plastic industrial shelving add-on unit with adjustable wire shelves and vertical metal poles, measuring 18 x 72 x 74. Dimensions may vary slightly from those shown on the plain white background.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-187274G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 18″ x 72″ x 74″
    $1,098.00 Original price was: $1,098.00.$542.86Current price is: $542.86. Add to cart
  • -51%
    The MetroMax Q MQ-212474G-A-4 industrial shelving add-on unit, with 21 x 24 x 74 dimensions, features four perforated blue shelves and silver poles. Perfect for storage, note that dimensions may vary from the displayed product.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-212474G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 24″ x 74″
    $830.00 Original price was: $830.00.$409.89Current price is: $409.89. Add to cart
  • -51%
    MetroMax Q MQ-213074G-A-4 is a 4-shelf plastic add-on unit with perforated blue shelves and silver supports. Actual dimensions, 21 x 30 x 74, may vary from product shown against a white background.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-213074G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 30″ x 74″
    $844.00 Original price was: $844.00.$416.48Current price is: $416.48. Add to cart
  • -51%
    The MetroMax Q MQ-213674G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit has a robust frame with four adjustable slatted shelves, measuring 21 x 36 x 74, providing ample storage for garage or kitchen. Note that actual dimensions may vary.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-213674G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 36″ x 74″
    $844.00 Original price was: $844.00.$416.48Current price is: $416.48. Add to cart
  • -51%
    The MetroMax Q MQ-214274G-A-4 Plastic Industrial Shelving Add-On Unit has four adjustable grid-design wire shelves for optimal airflow, dimensions of 21 x 42 x 74, and is shown against a white backdrop. Actual product dimensions may vary.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-214274G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 42″ x 74″
    $942.00 Original price was: $942.00.$464.83Current price is: $464.83. Add to cart
  • -51%
    The MetroMax Q MQ-214874G-A-4 4-Shelf Plastic Shelving Unit, 21 x 48 x 74, includes four adjustable perforated shelves in a white design, featuring vertical poles and horizontal support bars. Note that actual dimensions may vary.

    Add-On Units, Add-On Units, Metro

    MetroMax Q MQ-214874G-A-4 4-Shelf Plastic Industrial Shelving Add-On Unit, 21″ x 48″ x 74″
    $942.00 Original price was: $942.00.$464.83Current price is: $464.83. Add to cart

Showing 113–140 of 151 results

  • ←
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • →
Filter by price
Price: —

Most Popular Shipping Supplies

MH USA Bags - Poly

Bags
- Poly

Three stacked cardboard boxes with MH USA shipping labels and handling symbols, including fragile and keep dry icons, on a gray background.

Boxes
- Corrugated

MH USA Boxes - Mailers​

Boxes
- Mailers

MH USA Bubble, Foam & Cushioning

Bubble, Foam & Cushioning

MH USA Edge Protectors

Edge
Protectors

MH USA Envelopes & Mailers​

Envelopes
& Mailers

Brands we offer

We pick the very best so you can be assured of the quality. 

3M Logo
ACDI-Energy-Services Logo
Aurora Storage Products Logo
BASC Images Mfg Logo
Borroughs Logo
Camrack Logo
Charnstrom Logo
colorflex Logo
Cotterman Logo
Dahle North America Logo
Dasco Storage Solutions Logo
DC Locker Inc
Eagle Group Logo
EffiMat Storage Technology Logo
EQUIPTO
E-Systems Group
Little Giant Ladder Logo
Metalware Corp
Metro Logo
Modular_Millwork Logo
Newcastle_Systems
Panel_Built Logo
Pegasus_Medical_Concepts Logo
Ridg_U_Rak Logo
Smead_Custom Logo
Smead logo
The_Folder_Factory Logo
Vestil Logo
Shure Manufacturing Corp Logo
SpaceGuard Logo
Star Filing Logo
Summit Steel Manufacturing Inc Logo
Storeganizer Logo
SupplyPoint Logo
Tennsco Corp
Wanzl

New Hot Reads

White heavy-duty crowd control barriers labeled Stadium Swim form a winding queue on a shiny, polished floor inside a spacious indoor area.

PRIME HD RETRACTA-BELT® Stanchions

The Visiontron PRIME HD RETRACTA-BELT® offers durable, outdoor-ready crowd control. Featuring a weatherproof base and a 10′ locking belt, these

August 27, 2025 No Comments
A large, modern industrial building with solar panels on the roof showcases sustainable warehouse design and is surrounded by trees. Wind turbines are visible in the distance under a sunny, blue sky with scattered clouds.

The Green Warehouse: Sustainable Design for Efficiency & Savings

Design an eco-efficient warehouse that reduces energy costs, minimizes environmental impact, and enhances your brand. Our sustainable designs deliver measurable

August 25, 2025 No Comments
A spacious warehouse with a blue steel roof, large windows, and skylights serves as a hub for assembling prefabricated modular units—ideal for rapid deployment warehouse needs or scalable warehouse facilities.

Modular Warehouse Design: Agility for Changing Demands

Deploy flexible, scalable, and rapidly-built modular warehouse facilities. Ideal for seasonal peaks, temporary projects, or agile expansion. Design your operations

August 25, 2025 No Comments
Three workers in safety vests and helmets organize large cardboard boxes inside a spacious warehouse with tall shelves, demonstrating how a Lean warehouse design can help eliminate warehouse bottlenecks.

Eliminate Bottlenecks with a Lean Warehouse Layout Design

Apply Lean principles to your warehouse layout to eliminate waste, reduce bottlenecks, and create a frictionless workflow. Our designs focus

August 24, 2025 No Comments
Get In Touch with Our Experts Today!

For more information and personalized assistance from our in-house representatives, feel free to reach out to us. Whether you have questions or need a callback, we’re here to help! Simply email us at Sales@MH-USA.com or use our convenient “Contact Us” form to get started. You can also give us a call at 1-800-326-4403.

Online Store
My Account
Register
My Orders
Check Out
Terms and Conditions
Privacy Policy
Products
Pallet Rack
Shelving
Shipping Supplies
Security Cages
Mezzanines
Modular Buildings
Smart Lockers
PRODUCT DESIGN SERVICES
Warehouse Design
Pallet Rack Design
Laboratory Design
Stockroom Design
Tenant Locker Design
Pallet Rack Permitting
Retail Stockroom Design
Hospital Stockroom Design
Evidence Storage Room Design
Business Type
Data Centers
Education
Food Service
Government
Healthcare
Laboratories
Law Enforcement
Manufacturing
Mining and Gas
Office
Property Management
Warehouse
Resources
Brochures
Photo Gallery
Specifications
AIA Presentations
CONTACT US

Call Us
Contact Us
Send Us A Message
About Us
Blogs
Career

MATERIAL HANDLING USA
800-326-4403
Sales@MH-USA.com
222 S. Main St.
5th Floor
Salt Lake City, UT 84101
Facebook Youtube Linkedin X-twitter
Logos of various payment methods displayed in a row: Affirm, Amazon Pay, Discover, American Express, Visa, MasterCard, Google Pay, Apple Pay, and Klarna, each in distinct colors and styles.