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.
Slightly bend all panels and flaps on all scored lines before assembling the box.
Locate panel with red Burst Label. Turn this label side down. When assembled, this will be the bottom panel of box.
Fold and raise bottom B flaps upward as shown, raising the left and right C side panels.
Place bottom flaps B on bottom panel (B) raising C side panels. Fold left and right side flaps A over front panel (A).
Lift front (A) panel into place, placing left and right side A flaps over the left and right side C flaps.
Fold left and right side D flaps down inside box to finish sides of box, locking bottom tabs into slots on bottom panel.
Fold in lid side G tabs as shown. Fold box top lip (F) over the G tabs, locking the top lip tabs into slots on top panel.
Fold down hinged top lid into position and you’re finished.
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|
Determine the Actual Weight
First, use a scale to determine the weight of the package. Round any fraction of a pound to the next whole pound for Express Envelopes (letters) over 8 oz. and all other packages. Letters less than or equal to 8 oz. will be billed the Letter rate. Letters greater than 8 oz. will be billed by weight (rounded up to the next whole pound). International letters of 2 lbs. or less will be billed Pak rates. Express Envelope (letter) shipments that do not exceed 8 oz. qualify for the Letter rate. International shipments sent in a UPS Pak that weigh 2 lbs. or less and do not exceed US $100.00 in declared customs value, qualify for the Pak rate.
Determine the Dimensional Weight
Next, determine the package dimensions in inches. Multiply the package length (L) by the width (W) by the height (H). For each dimension, measure at the longest point, rounding each measurement to the nearest whole number (for example, 1.00 to 1.49 will be considered 1, and 1.50 to 1.99 will be considered 2). The result is the cubic size in inches.
For domestic shipments:
UPS Air Services shipments:
Divide the cubic size in inches by 166 to determine dimensional weight in pounds. Increase any fraction to the next whole pound.
[Billable Weight Formula constant=”166″]
UPS Ground shipments:
If the cubic size of the package in inches is 5,184 or larger, divide the cubic size by 166 to determine dimensional weight in pounds.
[Billable Weight Formula constant=”166″]
If the cubic size in inches is less than 5,184, use the actual weight of the package.
[Billable Weight Formula constant=”Actual Package Weight”]
For International Shipments:
For export shipments:
Divide the cubic size by 139 when measured in inches to determine the dimensional weight. Increase any fraction to the next whole pound.[Billable Weight Formula constant=”139″] For most import shipments:
If measured in inches, divide the cubic size by 139.[Billable Weight Formula constant=”139″]
If measured in centimeters, divide the cubic size by 139.[Billable Weight Formula constant=”139″]
, or by 5,000 if measured in centimeters, to determine the dimensional weight. To convert metric measurements into pounds, multiply the result by 2.20462. Any fraction of a pound will be calculated at the next highest rate.
For UPS Standard to Canada shipments:
Note: Size limits indicated by a box manufacturer may
not reflect exterior dimensions of a package, including
where a package may have bulges or otherwise
may not be uniform across each plane, and should
not be used as a substitute for actual length, width,
and height measurements in determining dimensional
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.