Square picnic table

Any ideas on how to come up with a wood plan for this square picnic table with attached capri seats?

http://www.lowes.com/ProductDisplay?partNumber=31758-93841-PBK358-VR&la…

Here's another one: http://tables.dallasmidwest.com/Picnic-Table-41in-Square-Top-F10206.asp…

Thanks!