Arnold's Factory Supply
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Corrugated Solutions

Free Analysis
Corrugated Solutions

We offer everything you need when it comes to custom sized, stock and printed corrugated shipping boxes. Arnold's has been designing and manufacturing corrugated boxes for more than 80 years. That experience has allowed us to develop the best process for creating perfectly customized shipping boxes and getting them to our customers in a timely manner. You can choose from a variety of box styles, from regular slotted container (RSC) boxes, which are the standard shipping boxes, to more specialized designs, depending on your needs. We can also manufacture your boxes in a range of strengths, such as singlewall, doublewall and triplewall containers.

As a corrugated sheet plant, we have all grades of corrugated on our floor. At Arnold's, flexibility is key. We have the capability to manufacture one box or thousands of boxes. In addition, we can print any quantity of boxes to your specification. Also, we stock all military specified corrugated sheets.

In addition to our custom containers, Arnold's offers an extensive line of stock boxes. We manufacture and maintain an inventory of over 130 sizes of boxes in stock to assure next day delivery. All boxes are delivered in compact, easy to handle bundles.

Our stock box program lets you select options that work best for your corrugated needs:

You can choose immediate or regularly-scheduled delivery service

We can assist you in managing your current stock levels with our Vendor Managed Inventory tracking and Just-in-Time replenishment programs

E-Commerce purchasing on our website can make it easy to order the right boxes at the right time

Let Arnold's Be Your Warehouse for Shipping Boxes

In today's challenging economy, why tie up cash and warehouse space with volume purchases of bulky corrugated boxes? Let us be your warehouse. We can set up a scheduled delivery program to keep your inventory turning and your internal resources focused on bottom line profitability.

Corrugated Reference Guide

Definitions (Boxes)

A shipping unit of two or more articles wrapped and fastened together by suitable means.

Bursting Strength:
The Strength of material in pounds per square inch, as measured by the Mullen testing method.

Box Makers Certificate:
A statement printed on a corrugated fiberboard box or a solid fiberboard box testifying that all applicable construction requirements have been observed.

Corrugated Fiberboard (single wall):

The Structure formed by one corrugated inner member glued between two flat facings.

Corrugated Fiberboard (Double wall):
The structure formed by three flat facings and two intermediate corrugated members.

Corrugated Material or Corrugating Medium:
Paper board used in forming the fluted portion of the corrugated board.

Die Cut:
A cut made with special steel rule dies. The act of making a part of container which is cut and scored to shape by tools. Also used to denote a board which has been die-cut.

(Sometimes erroneously called liners) A form of linerboard used as the flat members of corrugated fiberboard.

As used in our industry, a general term applied to fabricated paperboard utilized in container manufacture.

The closing members of a fiberboard box.

Flute or Corrugation:
One of the wave shapes in the inner portion of combined corrugated fiberboard.

Flute Sizes:
A, B, C, E

Flute (or corrugation) Direction:
The normal Direction is parallel to the box.

The joint of the box is the part where the ends of the scored and slotted blank are joined together by taping, stitching, or gluing.

Knocked Down (KD):
A term denoting that an article is partially or entirely taken apart, not setup.

A word meaning strength applied to pulp, paper, or paperboard produced from wood fibers by the sulfate process.

A creased fiberboard sheet inserted in a container and covering all side walls.

Paperboard used for the flat facings in corrugated fiberboard; also as the outer plies of solid fiberboard.

A Corrugated or solid fiberboard sheet or other authorized material used for extra protection or for separating tiers or layers of articles when packed for shipment.

A "face" or "side" of a box.

A set of corrugated or solid fiberboard pieces slotted so they interlock when assembled to form a number of cells into which articles may be placed for shipment.

An impression or crease in corrugated or solid fiberboard to locate and facilitate folding.

A cut made in a fiberboard sheet without removal of material.

A cut made in a fiberboard sheet extending through only apportion of the thickness.

A cut made in a fiberboard sheet, usually to form flaps and thus permit folding.

When not otherwise modified, refers to the bursting strength of linerboard and combined board except for those grades for which puncture test is substituted for bursting strength.

Test, Bursting Strength (Mullen):
Measurement of the resistance of a material to bursting expressed in pounds per square inch. The test is made on a Mullen tester.

Rule 41, specified in the chart below, is a U.S. Government Rule for interstate shipping of bursting strength (Mullen) corrugated boxes.

ECT vs. Mullen

Corrugated board and boxes are given two types of tests to determine their durability and strength: the ECT, or Edge Crush Test, and the burst, or sometimes called "Mullen," test. These tests are completely different and measure different properties of the material. In simple terms, the ECT measures top-to-bottom compression strength, while burst measures primarily puncture and tear resistance. The following is taken from the ISTA (or International Safe Transit Association) website, and describes the two grading systems in more detail: "Corrugated grades are based on these tests. When a test is applied to a sample, then the results allow us to assign a grade. So a particular run of board is not intrinsically ECT or burst, the designation only refers to how it was tested (board may be designed to optimize one or the other test results, however). If a run is designed to be graded ECT and then is graded ECT and marked accordingly, we typically call it ECT grade board. But the sample run could also be graded burst. Grade is just a classification system and there happens to be two systems. Accordingly it is not typically possible to tell the difference between ECT and burst grades as all board can fit into both grading systems."

So if your primary concern is crushed boxes and stacking problems, consider specifying in terms of ECT. If it's containment strength and puncture resistance, consider specifying in terms of burst. If you need both, specify both.


Column A

Minimum Bursting Test
Singlewall and Doublewall Board (psi)
or Minimum Puncture Test Triplewall
Board (inch oz. per inch of tear)

Column B

Minimum Edge Crush Test (ECT)
(lbs per inch width)

Singlewall 125


Singlewall 150


Singlewall 175


Singlewall 200


Singlewall 250


Singlewall 275


Singlewall 350


Doublewall 200


Doublewall 275


Doublewall 350


Doublewall 400


Doublewall 500


Doublewall 600


Triplewall 700


Triplewall 900


Triplewall 1100


Triplewall 1300


Source: Fibre Box Handbook ©2010

Flute Corrugated Sizes