[Gordonnis]

called out to clean this rug from Crucial trading     wool and linen rug, but where the linen edge is, as you can see has got a few ridges in  the area where the owner had rubbed a mark off        never seen this on linen edges before so dont know if customer at fault or rug maker   any ideas

[Dave_Lee]

They could have stretched the material, but does also look like differential shrinkage, like you get down the leg seams on Jeans when they have been washed.
Dave.

[scott johns]

probably where every one walks across rug so some wear to edge and probably client rubbed as
hard as possible with to much product they where using I cant see it being the rug manufactor
fault as it was not there when brought happy cleaning

[John Kelly]

Carpet has shrunk along that edge whereas wrapping hasn't so has rucked up. As Dave said, differential shrinkage.