Yep, thats 20.16 oz/sq ft.
Jollidude said his Simple Corsair flew great with a OS .15FP at 26 ozs but was heavy. His would have been around 19 oz/sq ft.

I have a Tequila Sunrise ARF (still in the box) that has 288 sq inches and it says the flying weight is 3.25 lbs on the box. That's 25.99 oz/sq ft.
I have a Norvel .25 to go on it, that should save some on the weight.
They say it is fast and the landing speed is something else.[X(]