Editing Climbing wall (section)

==Types==
[[File:Sportklettern.svg|thumb|right|240px|Different types of sport climbing problems: (1) Dihedral, (2) [[Slab climbing|Slab]], (3) Wall, (4) [[Overhang (rock formation)|Overhang]], (5) Edge, (6) Roof and (7) [[Traverse (climbing)|Traverse]] climbing]]
The simplest type of wall is of [[plywood]] construction, known colloquially in the climbing community as a 'woody', with a combination of either bolt-on holds or screw-on holds. Bolt-on holds are fixed to a wall with iron bolts that are inserted through the hold, which will have specific bolt points, and then fixed into pre-allocated screw-threaded holes in the wall. Screw-on holds are, by contrast, usually much smaller, owing to the nature of their fixing. These holds are connected to the wall by screws, which may be fastened anywhere on the wall's surface.

Some other types of walls include slabs of granite, concrete sprayed onto a wire mesh, pre-made fiberglass panels, large trees, manufactured steel and aluminum panels, textured fiberglass walls, and inflatables. A newer innovation is the rotating climbing wall: a mechanical, mobile wall that rotates like a [[treadmill]] to match your climbing rate of ascent.

The most common construction method involves bolting resin hand and foot holds onto wooden boards. The boards can be of varying height & steepness (from completely horizontal '[[Overhang (rock formation)|roof]]s' to near-vertical '[[wikt:slab|slabs]]') with a mixture of holds attached. These can vary from very small 'crimps', and 'pinches', and slanted-surfaced 'slopers', to 'jugs', which are often large and easy to hold. This variety, coupled with the ability for the climbs to be changed by moving the holds to new positions on the wall, has resulted in indoor climbing becoming a very popular sport.

===Spray wall===
{{excerpt|Spray wall|only=paragraph}}