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Compensate an unknown scale for a sheet

Modified: 7 Sep 2026 Viewpoint Estimating Estimating Help
If the scale is unknown, you can use the Compensate Scale feature to automatically calculate the scale. You must have a known distance on the plan in order to use this feature.
Tip: If the image is skewed—that is, the vertical (Y) and horizontal (X) attributes of the image were stretched or shrunken in different ratios—try compensating X and Y independently.
  1. Open a job in the Manage Estimates screen.
  2. Select the Takeoff tab.
  3. Click Sheets on the speedbar and select Sheet Properties.
  4. In the Sheet Name field, enter in the new sheet name, if needed.
  5. In the Tags field, enter one or more keywords that can be used to identify and filter the sheet. Separate multiple keywords with a comma.
    Note: Keywords can contain alphanumeric characters and can consist of multiple words, but cannot begin or end with a space.

    Alphanumeric characters include the letters A through Z, the numerals 0 through 9, and all special characters except comma, dash, period, percent, tilde, and single quote.

  6. In the Notes field, enter any notes pertaining to the sheet, if needed.
  7. Select one of the options below for Unit System:
    • Imperial
    • Metric
  8. In the Scale property, select the Compensated option button.
  9. Locate a known linear distance on the sheet.
  10. Click Compensate.
  11. Select the Compensate horizontal and vertical independently checkbox to set the horizontal scale and the vertical scale separately. If this checkbox is not selected, the sheet will not have separate scales for the vertical and horizontal axis, but rather a single scale for the whole sheet. In addition, you can use any known dimension at any angle, as opposed to only using dimensions at 0 and 90 degree angles respectively.
  12. Enter the length of the line to compensate. If you are compensating the horizontal scale and the vertical scale independently, use a horizontal distance.
  13. Click OK.
  14. Click on one end of known distance, then click on the other end.
  15. If you are compensating x and y independently, enter the length of the vertical line to compensate.
  16. Click OK.
  17. Click on one end of known distance, then click on the other end.
  18. Review the calculated scales displayed in the Compensated fields.
  19. Click OK.
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