Allow a margin of difference of

I’m not sure if I use the word "margin" correctly.

I’ve two different scenarios:

  1. To describe the measurement given may not be accurate because it is measured manually.

  2. To describe there may be differences in the actual measurement of the product because they are handmade.

The sentences I have in mind are:

  1. Please allow a margin of difference of 1-2cm as they are manually measured.

  2. Please allow 1-2cm margin of error as they are manually measured.

  3. Please allow a margin of 1-2cm difference as they are manually measured.

Are the above sentences acceptable?

Answer

If we wish to give a measurement, and also at the same time to allow some amount of variation, we often use the word ‘tolerance’. If I am making rods nominally 1 metre long, and the lengths may be between 99 cm and 101 cm, I could say ‘Please allow a tolerance of plus or minus 1 cm’.

tolerance noun
(VARIATION)
ENGINEERING, MATHEMATICS

the amount by which a measurement or calculation might
change and still be acceptable:

parts that are made to tolerances of a thousandth of an inch

Tolerance (Cambridge Dictionary)

Attribution
Source : Link , Question Author : Organic Heart , Answer Author : Michael Harvey

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