How do I choose a suitable wall thickness for my tubing? 

For normal conditions of use without pressure and/or high temperatures, we recommend to use the following rule of thumb to determine the wall thickness:

Outer diameter of tubing x 0,1 = wall thickness

For most of the applications, a wall thickness with 10-15 % of the outer diameter is sufficient. If vacuum is used, the wall should be as thick as possible.
You can easily check if the calculated wall thickness is sufficient for your special conditions of use (such as pressure and temperatures above/below 20 °C) by following this link:

Technical Information for the right wall thickness of tubing after just one click»