Depends on the granite, the particular slab and any inclusions, and, most importantly, your fabricator's skill and tools. You really should be having this conversation with your fabricator, and he should be viewing any slabs in question. Needless to say, that type of full service will be a more expensive choice than the low bidder would provide.

Im working with a fabricator and am waiting for his call back. Its been a frustrating search for granite and am almost to the point of giving up on granite.

It may be I need to find a new fabricator if he cant fabricate from that size as most of the slabs I can find over 120 are only 121-122. He has told me I need a min of 124 regardless of the specific granite or slab.

He doesnt stock so I am going to numerous places to try to find a slab I like that is also long enough.

That's the backwards way to do it. You find a slab you like, then design the island to fit to it, after the fabricator approves of it. Or, if the cabinets are already sitting there, you ask the thouroughly vetted fabricator to use his contacts to find you a slab, which you retain approval rights to possibly reject. His advice on suitable slabs is more important on the front end of the design than the back end.

Cabinets are already there. I may just give up on granite. Its been one of the most frustrating things ever. Almost all places here that have stock and fabricate have only 4-5 basic choices. If you want something else you have to go find it. They wont hold it unless you have a fabricator. Hence having to have a fabricator first.

Laura: Check for an engineered stone "Jumbo" slab.

Have you considered wood? Lots of varieties available and it can be made to any size you like. We just installed Iroko Spekva on our island and love it!