{{Projects infobox
|image           = Ladder.scad.png
|designers       = [[User:Tim|Timothy Schmidt]]
|date            = 2021
|vitamins        = 
|materials       = 
|transformations = 
|lifecycles      = 
|parts           = [[Bolts]], [[End caps]], [[Frames]], [[Nuts]]
|tools           = [[Wrenches]]
|techniques      = [[Tri joints]]
|git             = 
|files           = 
|suppliers       = 
}}

[[Category:Projects]]
[[Category:Tools]]

=Introduction=
A ladder is a vertical or inclined set of rungs or steps.

There are two types: rigid ladders that are self-supporting or that may be leaned against a vertical surface such as a wall, and rollable ladders, such as those made of rope or aluminium, that may be hung from the top. The vertical members of a rigid ladder are called stringers or rails (US) or stiles (UK).

Rigid ladders are usually portable, but some types are permanently fixed to a structure, building, or equipment. They are commonly made of metal, wood, or fiberglass, but they have been known to be made of tough plastic. 

=Challenges=

=Approaches=
======Fixed ladder======
<gallery>
Ladder.scad.png|
Tanzania-ladder~20191021-183526.jpg|
</gallery>
======Sectional ladder======
=References=
  * [[https://en.wikipedia.org/wiki/Ladder|Wikipedia: Ladder]]