I just posted a free plan for a 4ft adult sized picnic table!
Many people have been asking for it over on YouTube.
It is 30 1/2 inches tall, 47 1/2" long, 50 inches wide, and the seat sits at 17 1/2" tall.
It is made from 7 - 8ft 2x4's and 3 8ft 2x6's
Full detailed plans with cut list, material list, cutting diagram, and assembly instructions can be purchased for less than $5.00 here: