Which factor is essential for calculating the "Total cost" of truss replacement?

To calculate the "Total cost" of truss replacement accurately, both the number of trusses and the unit price per linear foot are necessary components. The number of trusses directly impacts the total amount of material and labor needed for the project, as more trusses will lead to a higher replacement cost. Additionally, the unit price per linear foot signifies the cost associated with the materials being used, which can vary based on quality, type of material, and market conditions.

By combining these two factors—quantity (the number of trusses) and price per unit (the cost per linear foot)—one can arrive at a comprehensive total cost estimate. For instance, if you know how many trusses you need and the cost to replace each linear foot of truss, you can multiply these values together to find the total expenditure.

Relying solely on just one of these factors, such as only counting the square footage of the roof, would not provide an adequate measure of the total cost, as it fails to account for the quantity and specific pricing of the trusses needed for same.