This skill allows the character to perform tasks such as bricklaying. The GM will set the task value to the task the character would like to perform. If the character makes a successful BCS the task is completed normally. If the character fails his/her BCS the task will take twice as along and use twice as much material to complete the job. If a critical failure occurs then the item being built will fall down or be structurally unsound. With this skill the character can attempt to determine the soundness and strength of a brick structure. While using this skill to check the soundness or strength the GM should make the roll in secret.