xpvc?

[Blue Apple Herps]

I've really been looking into building a rack using the XPVC buttheplaceI'mordering from has it in like 6 different thicknesses. Does the thickness matter? And if so what is the minimum thickness it should be?

10mm or ~3/8" is what I used for all my racks. Thick enough to provide adequate support, thin enough to keep costs and weight down.