IMPORTANT NOTICE: This estimator tool provides only one data point in estimating required product levels -- users must use technical expertise and good judgment, informed by past experience, to make any purchasing or installation decisions. Many factors beyond STI's control and uniquely within the user's knowledge and control can affect the use and accuracy of this estimation tool. It is thus recommended to build a mock-up to verify calculations, especially when bidding large magnitude projects. Given the variety of data points required in making purchasing and installation decisions, the user expressly assumes all risk and hold STI harmless from using this estimator tool. Calculations derived from this estimation tool are not guaranteed accurate and user assumes all risk associated with the use of this tool.