I'm in the same boat with slaszila.
I need to make a board for a giant.
the dude is 2 meter (6'7) , weigh 110kg (242lb) , foot size 50. he's a good surfer , and want's me to make him
a 6'4 twin fin fish on oldschool side of things.
I already have a design in mind but still looking after some input on what volume he needs so I can plan the board right.
Lee, I just posted on slashzilla's thread. That might give you some help. Mudybech gives you a good reference also.
I am 6'7" 275lbs and I built this board for myself. Go wider around the chest with low entry rocker. This board is 6'4" x 23 1/2" wide x 3" thick and it works. I can check other dimensions next time I'm in the shop if your like.
Many thanks for the help guys.
After seeing and reading what you posted I went to AKU Shaper , and resized my favorite fish to a 6'4x23x3.
the software says it has 52 litre while my original has 32L .
this should be plenty and will sure float the guy.
his weight/ my weight ---> 110/80= 137.5%
his board volume / my board 52/32 = 162.5%
I think it's enough volume to start with and I will not be afraid to take more foam off the blank