Well........ for me whenever someone is selling something that needs fixing... it is too much
work for them to bother with or worries them. If this is an after production add on item to reinforce the
hull then obviously at some point there was either failure or concern of the strength of that section of the
hull.... I am imagining that this is the front section of the bridge
deck. Maybe a little more info and I would give you a better idea of what you're looking at...... A lot of cats have stringers that run longitudinally from front to back on the bottom of the bridge
deck to disperse the
water hitting it and provide rigidity. Not unusual that these need attention especially if the bridge deck clearance is low. However if this is something they added themselves I would imagine that this area of the
boat is weak or flexing and this is what they came up with... IF it has failed and needs replacing I would be very careful about what is involved and why it keeps failing. a 1 inch by 6 inch stringer thats 4 feet long....? Doesn't sound right at all.... Is it built into other bulkheads and glassed solidly into the boat or is it kinna tacked in there in the middle of the bridge deck? No matter what I'd have an experienced multi hull boat
builder or
surveyor have a very close look at that and the surrounding areas.