A customer asked us to check on the floorboards in his MGB, so we peeled out the carpet and found this on the passenger’s side.  All of the dark spots are holes.  It appears that someone had tried to use some type of substance to fill holes previously, putty maybe?  A common cause of this problem is leaving the carpets in the car after they get wet rather than pulling them out to dry.  That traps moisture in the car for a long period of time.  This car needs floorboards on both sides.

Above is the driver’s side with a light underneath for effect.  It’s a little better than the passenger’s side but not by much.  Chip will confer with the owner to see how he wants to proceed at this point.