Why are supplier quotes significant in the estimating process?

Supplier quotes are significant in the estimating process primarily because they provide current pricing for materials. Accurate cost estimation relies heavily on understanding the latest rates for all materials needed for a project. Having up-to-date quotes allows estimators to compile a realistic budget, ensuring that all expenses are accounted for based on what suppliers are charging at that moment. This helps mitigate the risks of underestimating costs and can influence purchasing decisions and project viability.

In the context of the other options, while bulk discounts can be beneficial, they are not the main reason supplier quotes are used in estimating. Legal protections provided by contracts are also important but pertain more to contractual obligations than direct pricing. Lastly, while labor costs are critical to construction projects, supplier quotes specifically relate to material costs rather than labor expenses. Therefore, the essence of supplier quotes lies in their role in providing accurate and timely pricing information.