Hinges for articulated/foldable wooden ladder?

[thobjo]

I am going to build myself an attic hatch with an integrated folding ladder. Attached to this post is a picture showing the type of hinge that forms the joints between the step sections. What is this type of hinge called, or even better, where can I buy them?

 

[zniff]

Hi!
I saw your post about hinges for the ladder. I know it was ages ago, but did you ever find any hinges?

 

[thobjo]

Yes, I found hinges and the hatch and the ladder have been ready for a few years now. I bought the hinges from SSC in Skellefteå.