Boxes & Sheets

Buy Corrugated Boxes & Sheets Now

Types of Corrugated Boxes & Sheets

There are multiple styles of corrugated boxes and sheets.
Above are some of Kyana's best selling corrugated products.

Burst Strength vs. Edge Crush Test

Burst Strength

The force required to rupture combined board, using vacuum pressure measured by a Mullen tester, relates indirectly to the box’s ability to withstand external or internal forces. The results of the test indicate the box's ability to contain and protect its contents during rough handling.

200 lb. Test Mullen - what does that mean?

Burst Strength of 200 lb. test material means it will withstand 200 pounds of pressure per square inch as measured by the Mullen tester.

ECT Edge Crush Test - the amount of force needed to crush an on-edge specimen of combined board is a primary factor in predicting the compression strength of the completed box. In most instances, stacking strength, not bursting strength, is critical to box performance.

Single Wall Corrugated

Double Wall Corrugated

Flute Sizes

Right Size Your Box

Please enter the size of the product you are packing into a box.
(Please enter all dimensions in inches, and use decimal equivalent for fractions)
Length     Width     Height


Breakability Index

Shipping Method

Right Size Box

This is an initial recommendation. Testing may be required to validate these results.

Dimensional Weight

What Is Dimensional Weight?
Dimensional weight is a billing technique that accounts for the total volume of a package (length x width x height).

Dimensional Weight Planner

Since January, 2015 UPS and FedEx have been charging for domestic ground shipments based on dimensional weight to reflect both the size and weight of the shipment. Both carriers base their shipment density on 10.4 lbs/cu ft and both will charge the higher of the actual weight or the dimensional weight.

The formula used for this calculation is to measure the exterior of the box used, multiply the length times the width times the height, and then divide the result by 166. When measuring, fractions are rounded up or down to the nearest inch.

Shippers must also account for “the bulge”: If the package is over packed or misshaped (out of square), the carriers will use the longest dimensions that their scanners will see. Boxes are ordered using interior box dimensions, but the package carriers will measure the exterior of the box, adding the board thickness and any bulge to the calculation for dimensional weight.

Kyana’s Dimensional Weight Planner will use your box size and wall thickness (single, double or triple wall) to give you an estimated dimensional weight, but remember, the parcel carriers will also measure any bulges or flaps that are not completely closed. When estimating your freight, use the greater of the box actual weight or dimensional weight.

If you used our "Right Size Your Box" calculator above, we have run the calculation for you with the recommended box size.

DIM Weight calculator

(please enter the inner dimensions in inches, and use decimal equivalent for fractions of your box size)

Length     Width     Height

Wall Thickness

Estimated Parcel Service Dimensional Weight lbs.

Why Are Shipping Rates & Surcharges Going Up?

In addition to the increase in surcharges for packages that exceed maximum dimensions, FedEx has increased shipping rates for Express, Ground, Freight, and Home Delivery by an average of 4.9% (effective January 4, 2016).

UPS is also raising rates, with a 4.9% average increase for Freight (effective October 26, 2015), a 4.9% average increase for Ground (effective December 28, 2015), and a 5.2% average increase for Air (effective December 28, 2015).

These policies are a direct response to changing industry demand dynamics, including increases in average package size and weight and increased residential deliveries.

For example, a sharp growth in e-commerce means that many light weight items are shipped in larger than appropriate boxes which takes up space on shipping vehicles and therefore increases the cost of operations. Shipping companies are addressing these new demands by instituting more stringent dimensional weight billing practices and/or increasing shipping rates to cover their costs.

What Does This Mean For You?

In May of 2015, we surveyed 150+ customers like you and found that 89% were already seeing an increase in shipping prices due to dimensional weight policy. Of those, 41% were seeing increases of 10-20%.

Of those we surveyed, 83% indicated that dimensional weight pricing will impact at least 25% of their customers freight costs.

The announced increases from FedEx are further indication that this issue is real, is not going away. Unless you take proactive action, these shipping changes will significantly increase the cost of doing business.

Some estimates indicate that dimensional weight pricing could increase shipping charges by $550 million annually beginning in 2015.

How Can Kyana Packaging Solutions Help?

Even before dimensional weight pricing went into effect in 2015, Kyana Packaging Solutions has been leading the way to educate our customers on how to navigate these changes and mitigate their impact.

Learn how right-size packaging and efficient materials can ensure items arrive safely without incurring undue cost.

We are ready to partner with you to provide the right packaging solutions to reduce and optimize your package sizes. Investing in Kyana Packaging Solutions will lead to lower shipping costs in general, but the savings are especially acute when dimensional weight pricing is applicable.

How to measure a box?

Box measurements are always expressed in the three inside dimensions: Length X Width X Height

The length and width are the opening dimensions of the box, and the length is always the larger of the two (unless they are equal).

The depth is how far you can reach into the box, and is the distance measured perpendicular to the length and width. These measurements always relate to the inside dimensions of the box.

When measuring your box think about leaving space on all sides and also above and below cushioning products. (Void Fill, Bubble, Foam, Paper)