You will be shocked how small 60 x 100 really is. What type of riding do you do? I personally don't think I would want to go smaller then 80 x 100 at the very least. We ride in a 100 x 200 indoor and it can still be tight at times. (But we jump so we need more space) Even canter work is hard tho in an area less the 80 x 100...they just can't stretch out much. Thats just my opinion tho!