Construction Measurement Tolerance Checker
Compare a measured construction dimension with its target and allowable tolerance. Use one-sided limits or separate positive and negative limits, then see the exact deviation, remaining tolerance and pass/fail status.
Measurement and tolerance
How the tolerance check works
The measured value is first compared with the target. A positive deviation means the measurement is above target; a negative deviation means it is below target.
For symmetric tolerance, the acceptable range is:
Asymmetric tolerance
Some specifications permit different positive and negative limits. In that case the lower and upper acceptance boundaries are calculated independently.
Why the result shows remaining tolerance
A pass/fail result alone does not show how close the measurement is to its limit. Remaining tolerance makes borderline measurements easier to identify.
Frequently Asked Questions
How is construction tolerance checked?
Compare the measured deviation against the applicable tolerance limits.
Can tolerance be asymmetric?
Yes. Separate positive and negative limits are supported.
Does a pass result mean the work is approved?
No. It means only that the entered measurement falls within the entered limits.