I've tested lots of materials from the hardware box stores, and other than Tyvek/Typar, visqueen/window insulation, Reflectix, aluminum flashing and some poly lumber covers, all have not been worth any effort. As a builder, they get tested right on the job. Those cheap drop cloths are just that. When I need more than just the canvas ones I own, they'll make do, but I'd never use them to make anything, as they rip and shred.