This is a bit of an oversimplification, but you could probably get a pretty close estimate, by simply multiplying the nominal weight by the ratio of the extra length/width over the nominal length/width. Doing that, I get the following weights.
Nominal: 13.52 oz
Wide: 14.87 oz
Long: 14.98 oz
Wide and Long: 16.48 oz
I would expect the actual values to be slightly lower due to edge effects, but these numbers should be pretty close.
"The Road goes ever on and on,
Down from the door where it began.
Now far ahead the Road has gone,
And I must follow, if I can.
Pursuing it with eager feet
Until it joins some larger way
Where many paths and errands meet.
And whither then? I cannot say."
~Bilbo Baggins - LotR