Reducing the "volume" of cardboard boxes will reduce shipping costs!
- RAJA Inc. 株式会社ラジャ

- Sep 10
- 3 min read
When packing items, do you fill in any blank spaces or gaps with cushioning material? Stop doing that right now. It may be increasing costs. By cutting the cardboard a little, you can eliminate those blank spaces and gaps, which may also lead to cost savings. Here are some examples of how you can reduce shipping costs with just a little effort.

Checkpoint 1 - Air freight rates
When comparing actual weight and dimensional weight, the greater weight will be applied to calculate air freight charges.
Volumetric weight is 6000cm³ = 1kg.

Checkpoint 2 - The importance of reducing volume
In any case, it's important not to leave any unnecessary blank space .
The ideal situation is to minimize wasted space and make the actual weight equal to the volumetric weight.
This also reduces the amount of cushioning needed to fill in excess space and prevents damage caused by items moving or floating inside the box.

A method for cutting height without creating any blank space

Now, insert the cushioning material and place the product in the cardboard box.
When you fill it in, there may be some space left over.
Eliminating this as much as possible will lead to cost reductions.
The method is surprisingly simple.
Price comparison of reducing the "volume" of cardboard by cutting the height: Before and After
Price comparison - before volume cut
Example of shipping stuffed toys to Taiwan
Before

Volume cutting procedure - just cut the four corners
1. Check the margin space. 2. Cut the area below the slit in the lid to fit the margin space. *See the green lines (four corners) in Figure 1.
3. Make a crease. *Additional information available

3) Crease the paper - Easy with a little ingenuity
Steps 1 and 2 were very easy.
Step 3 is also easy, but when it comes to hard cardboard, people often say that it's difficult to crease it. However, it can actually be done easily by using inexpensive tools and reviewing the cardboard you have in stock.
Cardboard creases - using inexpensive tools
It is surprisingly difficult to crease cardboard by yourself, but there are a variety of tools available that can easily solve this problem.
If you search for "cardboard size adjustment" on the internet , you'll find a lot of tools. Many of them are relatively inexpensive, so you can easily purchase and use them.

Cardboard folds - Use adjustable cardboard
Although the mix of product sizes is random and it would be nice to stock just the right size cardboard boxes, there are so many different types that it is difficult to stock and manage, which is also a factor that prevents volume reduction.
By providing height-adjustable cardboard, you can easily cut down on volume without increasing the number of sizes. While you need to determine whether or not it can be used depending on the nature of the product, it is recommended because it makes it easy to cut down on volume. Search example: "Volume-adjustable cardboard"

Price comparison - after volume cut
Example of shipping stuffed toys to Taiwan
Aefore

Cutting the volume resulted in cost reduction
point
・Be conscious of eliminating white space
・Cut the four corners
・Use tools to cut cardboard volume
By following the above steps, you will be more likely to be able to reduce shipping costs. In this case, we were able to reduce costs by 310 yen per item.
* Shipping region: Taiwan, actual weight and volume weight: 1 kg


