In ,
desgnr typed:
I don't have a table saw.
Is it possible to rip down the row against the wall with a
Jig Saw ?

It's a lot better to just remove the mop boards and pull the joint apart,
assuming it was put down properly. That way the seam will be tight as it's
supposed to be when the new piece is slipped in.

HTH,

Twayne`