Need to calculate the draft of a boat

[tibett]

I am trying to find the draft of a boat. This is what I know.
The boat is 12'wide X 20' long X 10' deep.
The material for the boat is steel and weighs 10.2 lbs per sq/ft.
So I need to find the weight of the boat as a starter.

I will be putting this in sea water using 64.08 lbs per cubic/ft.

Can anyone give me a formula to tie all this together?
Appreciate the help.

[MikeJohns]

No formula only hard work

You really need to know what you want for the hull before you can design anything. The use of the vessel would be a good start.
Could I suggest you try and read a book called (I think) "How to design a boat" by John Teal.

What you have to do is

1esign a hull to a desired displacement and ratios
2:Calculate the masses and moments of all the parts in the finished vessel
3: Add ballast and or go back to step 1 and change displacement.

and so on.............

The steel weight should be cubic too !