The Eneroth Scaled Tape Measure is a SketchUp Ruby plugin that enables precise measurement and layout on scaled reference drawings. It introduces a custom tape-measure tool that allows users to input a specific drawing scale, effectively calibrating the software to interpret measurements based on that ratio.

The download is a 22 MB file containing .ZIP files.

After installing the RBZ file via the Extension Manager, the tool is accessed through the toolbar or the main menu. Users select the tool and define a known distance on their reference image to set the scale factor.

It is particularly valuable during the initial stages of a project when tracing existing building footprints or site layouts. By ensuring that measurements are accurate to the intended scale from the start, it reduces manual calculation errors, making it a reliable companion for any project requiring high-fidelity conversion from 2D documentation into a 3D BIM model.