I'm not sure but I can measure it for you this evening and let you know. My husband had all of that written down somewhere during his building process but we can't seem to find it. We changed our minds so much as we were building that the dimensions on the papers probably aren't accurate anyway. I will let you know later today though!
And yes, plenty of room! I think if it was much bigger I'd probably clutter it up with un-necessary furniture. I will also take some pics from the other side so you can see what furniture fits on this. I now have 2 chaise lounge chairs, the round lounge, a dining table and chairs and also a small side table with 2 sitting chairs. And still have enough room that it doesn't seem cluttered. I'll post pics later for you.