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Bon’s Step Testing Gauge is the perfect tool for grading student projects or judging competitions.  The gauge is notched every 1/16 inch.  It is used with a straightedge level or square to evaluate finished projects by measuring the number of steps the project is off true alignment.  Easy evaluations can be made of the alignment of inside and outside corners; level measurements; and plumb measurements.

You can take the guesswork out of grading with Bon’s Step Testing Gauge.
  • Evaluate students the same way every time.
  • Evaluate all students in the same manner.

The gauge is sold complete with a 6’ straight edge and comes with easy to follow instructions, sample grading sheets and additional blank grading sheets which you can copy for use in the classroom.


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