Introduction: Foldable Cardboard Ladder

This instructable  explains how to build your own foldable Cardboard Ladder

See more on my site diyeasysimple.com

Step 1:

Materials:
I used a Cardboard with density ≈ 300 g / m²
1- 4 pieces of Cardboard with size: 150 cm x 15 cm each (Rails).
2- 8 pieces of Cardboard with size: 37.5 cm x 24 cm each (Rungs).
3- 4 pieces of Cardboard with size: 20 cm x 15 cm each (Footpads).
4- 2 pieces of Cardboard with size:   7 cm x 8 cm each (Hinges).
5- 4 pieces of Cardboard with size: 6 cm x 15 cm (Top pads).
6- 16 pieces of Cardboard rolled with 7 cm long and 8 mm Ø diameter (Pins).

Step 2:

1- Rails: Fold the 150 cm x 15 cm sheets into channel shapes 5x5x5 cm to form the 4 Rails (U shape).
      2- On the Rails each 30 cm long drill a 8 mm Ø hole, 2.5 cm away of edge on both   sides of the U shape Rail.

Step 3:

3- Rungs: Fold the 37.5 cm x 24 sheet to a square shape with 5 cm for each side, their will be a 4 cm extra side overlap it and glue to the end side.

Step 4:

4- Footpads: Fold the 20 cm x 15 cm sheet to a channel shape (U shape) 5 cm each side.

Step 5:

5- Hinges: for the sheet 7 cm x 8 cm trim it in a way to have 8 cm long on both sides and 5 cm in the middle.

Step 6:

6- Top pads: Fold the 6 cm x 15 cm sheet to a channel shape (U shape) 5 cm each side.

Step 7:

7- Pins: roll a 35 mm x 7 cm and glue it to have a pipe with 7 cm long and 8 mm diameter.
8- Make a 8 mm hole 1.5 cm away from the edge of each Rung and in the middle of both sides (let the over lapped side be in the bottom).
9- Trim 1.5 cm x 5 cm from the edges of the top side of each Rung (this to enable the move of Rung inside the Rail).
10- Cut exactly the middle of each Rung only 3 sides and leave the forth side to work as hinge.
11- Although the width of Rungs and Rails are same (5 cm) still you can insert Rungs into Rails, insert Pin to holes of Rung and Rail (leave 1 cm on each end of the pin, make 4 cuts along this 1 cm of pin, bend the cuts and glue it to Rail (make sure the none cut side of the Rung facing Bottom).
12- Repeat step 12 for all Rungs.

Step 8:

13- Using glue insert Footpads and Top pads into Rails and fix them (facing open sides) to reinforce the Rails.

Step 9:

14- Glue Hinges to the four Rails and you’ve done.

Comments

author
saidseyam made it! (author)2013-03-26

Although this ladder is made of thick paper but still can change to a real working ladder by using proper materials and necessary modifications to ease closing and secure against slipping and collapsing,

author
jinsheng made it! (author)2013-03-25

I think when u climb it will break

author
ajoyraman made it! (author)2012-11-11

The Folding Concept is Great ! Thanks for sharing.

author
snoopindaweb made it! (author)2012-11-11

I recall a commercial about 15 years ago that showed a full sized car driving over a corregated boxware arch. It had no struts under it. I used to make the stuff in Seattle, resisting compression downward on the flutes "center layer" was very strong. If You are well balanced You can stand on a corrigated box sitting flat on the floor. It all depends on flute size and paper weight of manafacture. Those made to ship heavyer items are supriseing. Walk gingerly on the rice paper Grasshopper. HAR.!

author
Fujo made it! (author)2012-11-11

What weight can this support?

author
dvdspeler made it! (author)dvdspeler2012-11-11

a.k.a. where are the pictures of you standing on it? =P

author
NitroRustlerDriver made it! (author)2012-11-11

I think I might make one of these, except use aluminum channel for the sides and aluminum tubing for the steps.

author
saidseyam made it! (author)saidseyam2012-11-11

Good idea, aluminum channel thickness should be 3 mm or more, good luck and let us see photos.

author
chibimaddy made it! (author)2012-11-11

This is a great idea! I'd love to see someone expand on it with materials that could be more weight-bearing. Great way to think outside the box. You, and people who design these types of things, just amaze me the way your minds work.

author
saidseyam made it! (author)2012-11-10

Although this ladder is made of thick paper but still can change to a real working ladder by using proper materials and necessary modifications to ease closing and secure against slipping and collapsing, thanks for all remarks.

author
Jayefuu made it! (author)2012-11-09

It certainly looks like a ladder. Do you have a photo of someone standing on it? What stops the legs sliding apart? And if you tread on the treads, what stops them breaking?

author
chiok made it! (author)chiok2012-11-09

This seems more a "proof of concept" than a working ladder. Though I have seen the same design in a wooden ladder that worked. Lots of hinges.

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