Walling is a technique used to utilize buildings to create narrower choke points, or to completely stop units from passing.

[edit] Terran

Supply Depot/Barracks walls are commonly used against all races to prevent early scouting. A Barracks placed below a Supply Depot will make a wall not even Zerglings can run through, making it possible for Terran to tech up early.

[edit] Protoss

Pylon walls are set up by Protoss at their expansions to prevent Vulture harassment. Forge/Gateway walls are usually placed at a Protoss's own natural expansion against Zerg, to safely guard against early aggression.

[edit] Zerg

Evolution Chambers can be used to safely wall off Sunken Colonies, most commonly against Protoss, to stop Zealot attacks.

Last edited by LinkinPork on 15 December 2009 at 15:48
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