UPS recommends in its “UPS Rate and Service Guide” using at least two inches of cushioning around each item and placing each item at least two inches away from the wall of the box. Enough packaging should be used to ensure the product does not shift when the box is moved or shaken. Suitable void fill or cushioning products include: bubble pack, packing peanuts, and foam.
Locate the BMC or Box Maker’s Certificate on the bottom of the box you will be using for shipping. Find the number corresponding to “Bursting Test” or “Edge Crush Test” (ECT). See the chart at the left for estimated guidelines. Keep in mind, these are only estimates – not specifications. Actual results may vary based on a variety of conditions.
(lbs / in2)
(lbs / in2)
|Max Weight of
Box & Contents
|Single Wall Corrugated Containers|
|Double Wall Corrugated Containers|
Note: This information can also be found on our new website under the blog post “What Size Box Do I Need?“.
The size (or dimensions) of a box are expressed in terms of length by width (or breadth) by depth (or height). For example, the notation 11″ x 8″ x 4″ describes a box that is 11 inches long, 8 inches wide and 4 inches deep. Boxes can be loaded from the top or loaded from an end.
- Consider the size, shape, weight, fragility, and number of the items to be packaged.
- Determine what kind of pack material, if any, will be needed so you can make allowances for it when determining the size of the box.
- Consider whether or not the box will be palletized and how it will be distributed and/or stored. The outside dimensions are important when palletizing and stacking boxes for distribution and/or storage.
- Based on what is being packaged and how it will be distributed and/or stored, determine whether the inside or outside dimensions are more important.
- Determine whether the items need to be packed from the top or end of the box.
- Determine the size of the box in terms of length x width x depth and note whether the dimensions are inside or outside dimensions. Even if the outside dimensions are more important make sure the inside dimensions are large enough to accommodate both the items being packed and any packing material used.
When you order boxes from Corrugated Containers, tell us whether the inside or outside dimensions are more important. If you are unsure how to pack your items, tell us what you are packing and how it will be distributed and/or stored so we can help you determine the type and size box needed and the kind, if any, of packing material needed.