In concrete calculations, why might numbers be rounded up?

Rounding up numbers in concrete calculations is primarily done to ensure that there is enough material to complete the job adequately. When calculating the amount of concrete needed for a specific project, rounding up allows for any unexpected variations that may arise during construction, such as inconsistencies in subgrade, spillage, or slight miscalculations in measurements. This practice helps prevent shortages that could lead to project delays or the need for additional orders, which could disrupt the workflow and increase costs. Overall, ensuring material adequacy is crucial in maintaining the integrity of the construction and the timelines associated with the project.