What is the cause of a crack in the sheetrock in the corner of a room?

Answer:
Cracks in the drywall in a room's corner is most often due to shear stress within the house's framing. Cracks of this nature are relatively normal as a house settles.
First answer by Aboveandbeyondct. Last edit by Aboveandbeyondct. Contributor trust: 9 [recommend contributor recommended]. Question popularity: 1 [recommend question].