Editing Bouldering (section)

== Indoor bouldering ==
{{further|Indoor climbing}}
[[File:ボルダリング (7955003588).jpg|alt=An indoor bouldering gym|thumb|An indoor bouldering gym]]

Artificial climbing walls are used to simulate boulder problems in an indoor environment, usually at [[climbing gym]]s. These walls are constructed with wooden panels, [[polymer]] cement panels, [[concrete]] shells, or precast molds of actual rock walls.<ref name="StiehlRamsey2005">{{cite book |author1=Stiehl |first=Jim |url=https://archive.org/details/climbingwallscom0000stie |title=Climbing Walls |author2=Ramsey |first2=Tim B. |publisher=Human Kinetics |year=2005 |isbn=9780736048316 |location=Champagne, Illinois |pages=49–51 |url-access= |name-list-style=and}}</ref> Holds, usually made of [[plastic]], are then bolted onto the wall to create problems.{{Sfn|Lourens|2005|p=18}} Some problems use steep overhanging surfaces which force the climber to support much of their weight using their upper body strength.{{Sfn|Burbach|2004|p=133}}

Climbing gyms often feature multiple problems within the same section of wall. Historically, the most common method route-setters used to designate the intended problem was by placing colored tape next to each hold. For example, red tape would indicate one bouldering problem while green tape would be used to set a different problem in the same area.{{Sfn|Burbach|2004|p=48}} Indoor bouldering requires very little in terms of equipment: at minimum, [[climbing shoe]]s; at maximum, a chalk bag, chalk, a brush, and climbing shoes.<ref>{{Cite journal |last=Walker |first=Noah |date=29 November 2019 |title=Five of the Best Climbing Brushes |url=https://gripped.com/indoor-climbing/five-of-the-best-climbing-brushes/ |access-date=2 January 2025 |website=Gripped Magazine |language=en-US}}</ref><ref>{{Cite web |title=Bouldering Walls: What Bouldering Gear Do I Need To Start Climbing? |url=https://mpora.com/rock-climbing/bouldering-walls-gear/ |access-date=2 January 2025 |website=Mpora |language=en-US}}</ref>