I went searching local for a ripstop to make a hammock body for my first diy proj. 'found 2 stores that sells them and each gave me 2 samples of ripstop nylon. I asked the salesperson about the weights and deniers of the samples and they don't seem to know. I noticed the 3 samples have different grid(square)sizes, they measure 5mm, 2.5mm and 1.25mm. I compared the samples with the fabric of my Mountain Hardwear tent rainfly and stuff sack and the 2.5mm sample have the same grid size and thickness although the fly and sack is somewhat sticky. The 5mm sample is slightly thicker and the 1.25mm is slightly thinner than the 2.5mm sample. The 4th sample is a diamond ripstop w/c is the thickest of them. I'm planning on making a DL btw and planning on starting it soon but now I'm confused which one to get. Hope I can get some help from you guys. Thanks all.