Flybridge bimini top size

[captbone]

I am looking into getting a bimini top for my flybridge. I have a 25ft but could use some imput on what people are using on a 31ft.

I am looking at getting the 4ft long x72inch wide x 36inchs high. I know the width is good up am question if 4ft would be long enough and if 36inch is high enough.

Any input would be huge.

Thank You