Hello Jasmina, the length of this island is approx 115" to the tall built in sitting on the counter, which leaves ample space for four barstools. A general rule of thumb is to allow approx 24" for each stool. So in your case, 72" should be about right. If you add any kind of leg at the end of the overhang, as is the case in this kitchen, you will want to account for that in your overall length as well.