So, today I was looking for a tool that can help me figure out the layout. I found this awesome website that I HIGHLY recommend. It's completely FREE, and the layout is TO SCALE. You put in the measurements and it gives you a background, you can then add tables and chairs to it that are to scale based on the background. It's so cool, and it's made this planning process so much easier. I may use it to figure out how I want the ceremony set up as well.
Another cool thing you can do is put in your guest list and put those people at their table, so you know what space is available at what tables. It is very cool and so helpful.
Allseated.com
Go check it out!
Just some friendly advice, cuz I know figuring out layout can be difficult sometimes.
