How much difference is there between 1800D, 1200D and 600D??? Ive always just bought medium weight rugs which i think have been 600D, so is there much if any difference in them?
The denier defines the strength of the material - higher is stronger (but hence generally more heavy)
Ripstop is term used to indicate material construction whith occasional stronger area such that if material rips, there is a point of higher resistance to stop the material from splitting along it whole length ( like a bed sheet would for example)