Allowing for Tolerance

Checking the Size:

We use EC Class 1 tape measures which are calibrated every time that we measure in glass. However, it is common for there to be up to 2mm differences between tapes if you have used an old tape or one that isn’t EC Class 1.

Standard Tolerance Orders:

  • For single panels of glass such as splash backs or multiple larger size panel orders our tolerance is +2/-2mm, meaning that a 1000mm dimension can actually be from between 998mm and 1002mm and still be acceptable by industry standards.
  • For supply-only multiple smaller panel orders we work to a +1/-1mm tolerance unless you informed us when you placed your order that measurements are ‘size critical’.
  • We always recommend that a 2mm expansion gap should have been left around the perimeter of your installation to allow for tolerance.

Size Critical Orders:

  • Where ‘size critical’ has been specified - these measurements will still hold a size of +0.5/-0.5mm according to our calibrated tapes/digital callipers. This may not be possible where bevelled edges or shapes are requested. There is an additional charge and longer lead-time to produce to this level of accuracy.
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