Protocase Resources

The information below is intended to be helpful for customers who wish to learn more about enclosure design. Also, please use our online support if you have questions for our expert design staff.


Fabrication Tolerances for Dimensional Variance in Plastics and Machined Parts

Standard Tolerances For Acrylic

Usually, choosing material thickness is one of the first steps a designer takes when starting a project. We work with nominal thicknesses, so it's important to know the thickness tolerance on the material you chose, in order to know if the final product will be suitable for your application.

Stocked Acrylic

Type Thickness Tolerance
Clear Acrylic 0.060" | 1.5 mm ± 0.006" | 0.15mm
n/a 0.118" | 3.0 mm ± 0.012" | 0.30mm
n/a 0.236" | 6.0 mm ± 0.012" | 0.30mm