Linen - foundation cloth Linen for PRIMTIVE cut sizes 6+ Linen for TRADITIONAL cut sizes #2-#5 2-ply linen12X12 threads per inch64″ wide – ideal for wide cutsall linen edges are serged 2-ply linen13X13 threads per inch59/60″ wide – ideal for #3-5 cutsall linen edges are serged