Granger Plastics Company

Rotational Molding Services in Middletown, OH

Middletown, OH

About Granger Plastics Company

Granger Plastics Company is an internationally recognized leader in rotational molding.

We are a custom manufacturer of a number of custom products for OEMs, manufacturing companies and more.

Rotomolding capabilities consist of large, complex items such as:

  • Tornado Shelters
  • Air Cargo Containers
  • ULD Containers
  • Beach Erosion Barriers
  • Poker Tables
  • Chemical Tanks
  • Laundry Carts
  • IBC Containers

We were established 18 years ago and have been providing industry leading solutions to a number of world leaders.

Contact us today!


Granger Plastics specializes in the rotational molding industry.

Our services have provided industry leading solutions for a wide variety of industries ranging from Aerospace, Defense, Chemicals, Agriculture and more.


Granger ISS Tornado Shelters, Chemical Tanks, Agriculture Tanks, Bulk Storage Containers, Granger Plastics laundry Carts, Granger Plastics IBC Containers, Granger Aerospace Containers

Remodeling cost guides

Structural Engineer Cost
Average cost to hire an structural engineer in Middletown is about 8% (of total construction project fee)

1600 M.A.D.E. Industrial Dr.
Middletown, OH 45044
Contact Shawn Cravens
Payment options
Shawn Cravens accepts cash, checks, Paypal and credit cards

  • TechSolve
  • NFIB
  • US Chamber of Commerce
  • SEMA
  • ARSA
  • OMHA
  • Society of Plastics Engineers
  • CCC

Cities served
Cincinnati, Columbus, Dayton, Hamilton, Springfield, Muncie, Lima, Anderson, Middletown, Westerville and other cities within 150 miles of Middletown.
Services offered

Granger Plastics offers secondary trim and assembly services, along with:

  • Packaging
  • Drop shipping
  • JIT stocking programs
  • In-house engineering and design, and more

American owned, privately held corporation based out of Middletown, OH. For more information on Granger Industries, please visit

Convert more expensive products or less durable products to a Rotationally Molded Polyethylene product if the process and or the use of the product allows. A number of companies and consumers have saved tremendous amounts of money converting pallets from wood to plastic or tanks from Stainless steel to Polyethylene; A number of companies have begun converting less durable products made of fiberglass to polyethylene.

The number of projects that Granger Plastics works on in a year varies; Recently the demand for Rotational Molding services has increased tremendously as there have continued to be a number of Rotomolding companies go out of business.

Granger Plastics was founded by the late John Grimes. He was the son of one of the founding fathers of the Rotational Molding industry, his father, who helped develop a number of the materials for the industry.

We love Granger Industries/Granger Plastics Company and they will be our Rotational Molding Company of choice in our future endeavors!

The most common job would be converting other materials, products, processes to Rotationally Molded plastic products and/or components.

Design, Concept, List of "Wants" (Wish List), Expectations and Specifications of performance and limitations.

The Granger ISS Tornado Shelters, The Sandsaver Beach Erosion barriers, Granger Plastics patent pending line of Air Cargo Containers, Granger Plastics Burial & Cremation Urns.

  • What is your size capabilities for rotational molding?
  • Do you offer in-house design?
  • Do you offer in-house tooling?
  • Do you offer in-house tooling repair?
  • What types of materials can you process?
  • Can you mold in metal components and inserts?

Rotational Molding produces virtually stress-free products.

Many people commonly have the "cheap, easy-to-break, toy-like" perception created by low quality, overseas manufacturing.

Granger Plastics produces durable, high quality products.


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