Quick and Dirty But Long-Lasting - Cardboard Box Shelf

There were a lot of cardboard boxes on the ground with his stocks inside when I visited my friend's place. I asked him "don't you feel inconvenient walking around?" He said yes, but he got used to it and didn't know what he can do for his stocks.

I asked him "do you want to buy a shelf?" He said he doesn't want to spend money on the shelf and there is no elevator in his place. Then I look at those boxes, they are mostly in the same size... hmmm, good shape! I told my friend "I can make shelf for you with these boxes."

At beginning, he rejected my idea, he said "those stocks are heavy, the cardboard boxes can't hold them for long time. I don't want them crash and destroy my stocks." I insisted "How about let's try first and observe, if you still think it's still not a good ideal, I'll restore them." Then, I made this shelf within half hour.

A year after, I asked him "how do you like the shelf?" He said "I love them! It's super useful and convenient that I can organize and get the model I need very easily. Thank you!" I got confirmed that they did well and last long, so I decided to post here!

Let's see how I made this quick and dirty but long-lasting cardboard box shelf!

Step 1: You Don't Need Much, But Be Prepared

You will need:

Cardboard box * (see how many you want)
A scissor or a knife
A heavy duty tape

Step 2: Make One Block of the Shelf

Cut the sides and make the support

This is the secret (not anymore) of the long-lasting! Cut both inner flaps (short sides) by a scissor or a knife (obvious I like knife more in the video :p). Then tape both flaps together, and put it to the side for now.
Fix the side with tape for easier to stack up the boxes.
Locate the support in the middle/center of the box.

Step 3: Repeat

Depends on what size of shelf you want, repeat step 1 to step 4 till you're satisfied or exhausted. Note that The top layers don't really need support if you're not putting stuffs above them. ;)

(Note: you can also have different size of boxes to have different size for each block. Also, I don't stick or tie the boxes together because I want the flexibility that I can re-arrange the boxes easily, but you can tie them with tapes or plastic ties if you're not moving them here and there.)