Quote Originally Posted by Jowgen View Post
Q 510

Can a Goliath and a Kobold (with RotD web enhancement in play) occupy the same square by virtue of their respective Powerful/Slight build abilities?
A 510

No. While Powerful Build and Slight Build allow the creatures to be treated as being of different sizes for some calculations, their space and reach remain the same - they are only two size categories apart.

Quote Originally Posted by RoS p.56
However, his space and reach remain those of a creature of his actual size.
Quote Originally Posted by http://archive.wizards.com/default.asp?x=dnd/we/20060420a
However, the space and reach of a kobold remain those of a creature of their actual size.
Quote Originally Posted by SRD
Square Occupied by Creature Three Sizes Larger or Smaller
Any creature can move through a square occupied by a creature three size categories larger than it is.

A big creature can move through a square occupied by a creature three size categories smaller than it is.
Quote Originally Posted by SRD
Ending Your Movement
You can’t end your movement in the same square as another creature unless it is helpless.