To calibrate the scale for a drawing in Buildend:
Navigate to Takeoff
Open the project where you want to calibrate the drawing scale.
In the project tabs, click Preconstruction → Takeoff.
Select the Drawing
From the Drawings dropdown, select the drawing you want to calibrate.
If the scale has not yet been set, you will see a red button labeled Scale Not Set.
Open the Calibration Tool
Click the Scale Not Set button to open calibration options.
You will have two methods to set the scale:
Option 1: Manually Set Scale
Enter the scale ratio manually (e.g.,
1 inch = 10 feet).
Option 2: Scale by Measurement
Click once to start drawing a line between two known points.
Click again to finish the line.
Enter the actual real-world distance between the two points.
Choose Units & Precision
Select whether to calibrate in feet or meters.
Choose the desired precision (number of decimal places).
Save Calibration
Click Submit to save the calibration.
All measurements on this drawing will now use the calibrated scale.
Tips for Choosing a Calibration Method
Manual Scale – Use this option if the drawing already includes a clear, printed scale (e.g., “1" = 10'”) and you trust that the drawing has not been resized or distorted.
Scale by Measurement – Recommended if you are unsure whether the printed scale is accurate or if the drawing may have been rescaled during scanning. Choose two points with a known distance (e.g., a door width, grid line spacing, or dimensioned wall) for the most accurate calibration.