My favorite backing: rug warp

Sheri's question:Hi Cindi, what's the difference in rug warp and say primitive linen. That's what I usually hook on but it's so darned expensive. I use an 8, 8.5 and 9 cut. I am also experimenting with monks cloth. It's not too bad and Alot cheaper than linen. And where do you get to rug warp? Dorr?Thanks for the help.Rug warp is the heaviest backing that I know of. It lays on the floor like a