Hi Lynda,
I have the F600. Its 7 3/4" right of the needle. This is a wonderful machine. I bought mine sight unseen based on good reviews. I use it for piecing and prefer it over any other machine I have had for piecing, which includes the Bernina 450 and, Janome Horizon 7700. The box feeding system it has makes it piece as well as a Singer 301, which was my previous favorite for piecing. I highly recommend it.