Hi Mark...
The outside walls will be in the range of 8 to 10 feet high, which is plenty of headroom for everything except the center 14 feet (the actual boat slip). I'd like to use about a 12-12 pitch and get a few feet of additional head room by raising the bottom cord.
A hammer beam would work fine if the raised cord can be 14 feet out of a total of 22 foot span.
The boathouse will be 22 feet wide by 44 feet long. I'm thinking of using 5 bents spaced 11 feet apart.
Joel
