@JeremyECrawford @mikemearls A web fills a 20-foot cube, but is 5 feet high when put on a flat surface… then fills a 40-foot square ?
— TadenRif (@TadenRif) August 24, 2015
In that situation, the webs fill a 20-foot area and have a depth of 5 feet. https://t.co/E28L5VRs4W
— Jeremy Crawford (@JeremyECrawford) August 25, 2015