Calibrating means bringing something to a precise, even size, or adjusting it accurately. In construction the word occurs in two senses: machining material to an exact thickness, and setting a measuring instrument so that it shows the correct value. In both cases it is about accuracy and evenness.
Bringing material to size
When material is calibrated, timber, sheet material or natural stone is machine-sanded or milled until it is exactly the same thickness everywhere. Calibrated boards or tiles then meet neatly and are interchangeable — important for floors, walls and worktops, where differences in height show up at once.
Adjusting an instrument
When a measuring instrument is calibrated, it is compared against a known reference and adjusted if needed, so that it measures correctly again — think of a level, a moisture meter or a scale. Regular calibration prevents small measuring errors from building up in the work.
Application
For the DIYer the key points are: use calibrated material when you want tight, flat joints, and check now and then that your measuring tools are still true. A quick check against a known dimension soon reveals any drift.
Related terms
- Milling
- Spirit level
- Wood
- Accuracy
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