10 Common Estimating Mistakes Made with Spreadsheets

▤ Summary

And while spreadsheets do serve an important purpose, there are certainly some risks when they are used for major projects where internal and external collaboration is key. These risks can lead to mistakes in the estimate, resulting in millions of dollars in budget blow outs. Here we look at some common mistakes that can be made when using spreadsheets and how the use of a sophisticated estimating platform can overcome these: No matter how fancy a series of workbooks are, they are usually not back tracked and updated once they have gone through revisions or have been around for several months. There are weak to nonexistent checks and balances in the workbook that will automatically update all relevant cells throughout the history of the Estimate. If there is no security within an Estimate, then it is very difficult to check quantities and rates without creating a new workbook to send to contractors.

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