North Carolina General Contractors Practice Exam

What factor is used to determine the amount of mortar needed?

1. 4.0 cf/100 sf

2. 5.0 cf/100 sf

3. 6.0 cf/100 sf

4. 7.0 cf/100 sf

The correct answer is: 6.0 cf/100 sf

The quantity of mortar required for a masonry project is typically based on the area being covered and the specific type of masonry being used. In this scenario, 6.0 cubic feet per 100 square feet is a commonly accepted standard that reflects the general needs for mortar considering the joint sizes and types of blocks or bricks used in construction. This factor takes into account the void spaces that need to be filled as the masonry units are stacked, along with providing enough material to compensate for wastage and adjustments during installation. When calculating materials for a masonry job, estimators often adhere to this standard factor to ensure that the final amount of mortar available aligns with the construction requirements without falling short or leading to an excess. This metric is widely recognized in the masonry industry and is crucial for cost estimation and effective resource management. Utilizing a factor of 6.0 cf/100 sf helps construction professionals ensure that they have a sufficient and accurate amount of mortar to achieve a solid and stable masonry structure.