As big as it needs to be to sustain your weight. Depends on your genes.
A 5 foot 3 inches male should weight approximately 100-125 pounds.
Your skim board should be around stomach height.
It should be about up to your shoulder, off your foot [with out a shoe on].
5
im 6 foot 3 but taller then most probably like 5 foot 5
5 foot 3 is 63 inches
Approx. 145 lbs.
Girl dont have 5 foots
5 foot 4in
5 foot 10
It is 3 feet 5 inches.
100 pounds at least maximum 125 pounds