Hair Extensions- my hair is cut into a short bob + shaped up back Id say shortest length is about 1.

Is this too short for fibre hair extensions to be attached?

Hair Extensions- my hair is cut into a short bob + shaped up back Id say shortest length is about 1.5-2inches?

Your hair is long enough.

They should have no problem what so ever putting the hair extensions into your hair so don't worry.

There are various techniques for putting hair extensions into your hair so go for a free consultation and they will advise you of the best techniques for the style that you are wanting to create with the extensions

Hair Extensions- my hair is cut into a short bob + shaped up back Id say shortest length is about 1.5-2inches?

no way! any licensed professional should be able to do that.